./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:26:12,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:26:12,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:26:12,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:26:12,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:26:12,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:26:12,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:26:12,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:26:12,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:26:12,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:26:12,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:26:12,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:26:12,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:26:12,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:26:12,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:26:12,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:26:12,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:26:12,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:26:12,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:26:12,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:26:12,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:26:12,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:26:12,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:26:12,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:26:12,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:26:12,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:26:12,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:26:12,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:26:12,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:26:12,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:26:12,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:26:12,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:26:12,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:26:12,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:26:12,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:26:12,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:26:12,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:26:12,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:26:12,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:26:12,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:26:12,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:26:12,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:26:12,180 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:26:12,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:26:12,181 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:26:12,181 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:26:12,182 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:26:12,182 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:26:12,182 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:26:12,183 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:26:12,183 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:26:12,183 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:26:12,184 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:26:12,184 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:26:12,184 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:26:12,185 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:26:12,185 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:26:12,185 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:26:12,185 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:26:12,185 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:26:12,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:26:12,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:26:12,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:26:12,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:26:12,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:26:12,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:26:12,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:26:12,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:26:12,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:26:12,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:26:12,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:26:12,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:12,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:26:12,189 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:26:12,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:26:12,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:26:12,189 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:26:12,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:26:12,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:26:12,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:26:12,202 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_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 [2022-11-22 01:26:12,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:26:12,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:26:12,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:26:12,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:26:12,546 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:26:12,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-22 01:26:15,710 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:26:15,968 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:26:15,969 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-22 01:26:15,975 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data/d623974ab/7e57f734601c47a4a30ae407f59b131f/FLAGdb1004049 [2022-11-22 01:26:15,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data/d623974ab/7e57f734601c47a4a30ae407f59b131f [2022-11-22 01:26:15,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:26:15,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:26:15,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:26:15,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:26:15,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:26:16,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:26:15" (1/1) ... [2022-11-22 01:26:16,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f40909f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16, skipping insertion in model container [2022-11-22 01:26:16,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:26:15" (1/1) ... [2022-11-22 01:26:16,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:26:16,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:26:16,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-22 01:26:16,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:26:16,239 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:26:16,249 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-22 01:26:16,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:26:16,275 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:26:16,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16 WrapperNode [2022-11-22 01:26:16,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:26:16,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:26:16,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:26:16,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:26:16,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,329 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-11-22 01:26:16,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:26:16,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:26:16,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:26:16,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:26:16,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,372 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:26:16,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:26:16,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:26:16,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:26:16,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (1/1) ... [2022-11-22 01:26:16,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:16,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:16,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:26:16,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:26:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:26:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:26:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:26:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:26:16,544 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:26:16,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:26:16,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:26:16,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:26:16,747 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:26:16,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:16 BoogieIcfgContainer [2022-11-22 01:26:16,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:26:16,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:26:16,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:26:16,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:26:16,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:26:15" (1/3) ... [2022-11-22 01:26:16,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b1e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:26:16, skipping insertion in model container [2022-11-22 01:26:16,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:16" (2/3) ... [2022-11-22 01:26:16,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b1e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:26:16, skipping insertion in model container [2022-11-22 01:26:16,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:16" (3/3) ... [2022-11-22 01:26:16,761 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2022-11-22 01:26:16,784 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:26:16,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:26:16,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:26:16,874 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;@40e38f8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:26:16,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:26:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:26:16,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:26:16,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:16,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:26:16,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2014311611, now seen corresponding path program 1 times [2022-11-22 01:26:16,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:16,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420400969] [2022-11-22 01:26:16,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:16,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:26:17,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:17,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420400969] [2022-11-22 01:26:17,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420400969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:17,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:17,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:26:17,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333643046] [2022-11-22 01:26:17,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:17,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:26:17,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:26:17,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:26:17,694 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:26:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:17,851 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2022-11-22 01:26:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:26:17,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:26:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:17,864 INFO L225 Difference]: With dead ends: 34 [2022-11-22 01:26:17,864 INFO L226 Difference]: Without dead ends: 22 [2022-11-22 01:26:17,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:26:17,872 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:17,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:17,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-22 01:26:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-22 01:26:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:26:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-22 01:26:17,917 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2022-11-22 01:26:17,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:17,918 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-22 01:26:17,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:26:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-22 01:26:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:26:17,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:17,920 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:17,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:26:17,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:17,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1372500953, now seen corresponding path program 1 times [2022-11-22 01:26:17,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:17,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333873864] [2022-11-22 01:26:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:17,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:26:18,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:18,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333873864] [2022-11-22 01:26:18,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333873864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:18,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:18,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:26:18,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866653466] [2022-11-22 01:26:18,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:18,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:26:18,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:26:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:26:18,544 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:26:18,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:18,647 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-22 01:26:18,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:26:18,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-22 01:26:18,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:18,649 INFO L225 Difference]: With dead ends: 30 [2022-11-22 01:26:18,649 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 01:26:18,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:26:18,652 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:18,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 57 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 01:26:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-22 01:26:18,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:26:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-22 01:26:18,662 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 12 [2022-11-22 01:26:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:18,662 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-22 01:26:18,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:26:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-22 01:26:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:26:18,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:18,664 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:18,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:26:18,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:18,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash -718003265, now seen corresponding path program 1 times [2022-11-22 01:26:18,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:18,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257561520] [2022-11-22 01:26:18,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:18,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:18,682 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:26:18,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225489761] [2022-11-22 01:26:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:18,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:18,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:18,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:26:18,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:26:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:26:18,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:26:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:26:18,888 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:26:18,889 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:26:18,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:26:18,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:19,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:19,107 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 01:26:19,110 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:26:19,182 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:19,182 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:19,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:26:19 BoogieIcfgContainer [2022-11-22 01:26:19,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:26:19,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:26:19,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:26:19,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:26:19,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:16" (3/4) ... [2022-11-22 01:26:19,207 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:26:19,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:26:19,208 INFO L158 Benchmark]: Toolchain (without parser) took 3215.12ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 110.8MB in the beginning and 173.9MB in the end (delta: -63.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:26:19,209 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:26:19,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.41ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 100.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:26:19,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.09ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:26:19,210 INFO L158 Benchmark]: Boogie Preprocessor took 47.48ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:26:19,211 INFO L158 Benchmark]: RCFGBuilder took 371.86ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 86.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:26:19,211 INFO L158 Benchmark]: TraceAbstraction took 2447.01ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 85.2MB in the beginning and 173.9MB in the end (delta: -88.7MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2022-11-22 01:26:19,211 INFO L158 Benchmark]: Witness Printer took 7.04ms. Allocated memory is still 203.4MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:26:19,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.41ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 100.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.09ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.48ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.86ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 86.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2447.01ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 85.2MB in the beginning and 173.9MB in the end (delta: -88.7MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Witness Printer took 7.04ms. Allocated memory is still 203.4MB. Free memory is still 173.9MB. 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: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 75. Possible FailurePath: [L33] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L34] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L36] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 1); [L37] const SORT_12 msb_SORT_12 = (SORT_12)1 << (1 - 1); [L39] const SORT_1 var_2 = 1; [L40] const SORT_1 var_11 = mask_SORT_1; [L41] const SORT_1 var_16 = 3; [L44] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 init_5_arg_1 = var_2; [L48] state_3 = init_5_arg_1 [L49] SORT_1 init_6_arg_1 = var_2; [L50] state_4 = init_6_arg_1 VAL [init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_16=3, var_2=1] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_16=3, var_2=1] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=15, state_3=1, state_4=15, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=15, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=1, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=15, state_3=1, state_4=15, var_11=15, var_13=1, var_13_arg_0=15, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=15, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=0] [L28] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L28] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 24 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:26:19,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:26:21,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:26:21,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:26:22,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:26:22,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:26:22,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:26:22,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:26:22,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:26:22,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:26:22,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:26:22,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:26:22,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:26:22,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:26:22,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:26:22,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:26:22,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:26:22,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:26:22,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:26:22,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:26:22,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:26:22,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:26:22,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:26:22,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:26:22,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:26:22,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:26:22,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:26:22,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:26:22,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:26:22,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:26:22,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:26:22,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:26:22,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:26:22,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:26:22,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:26:22,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:26:22,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:26:22,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:26:22,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:26:22,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:26:22,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:26:22,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:26:22,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:26:22,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:26:22,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:26:22,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:26:22,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:26:22,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:26:22,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:26:22,145 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:26:22,145 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:26:22,145 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:26:22,145 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:26:22,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:26:22,147 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:26:22,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:26:22,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:26:22,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:26:22,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:26:22,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:26:22,149 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:26:22,149 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:26:22,150 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:26:22,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:26:22,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:26:22,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:26:22,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:26:22,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:26:22,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:26:22,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:22,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:26:22,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:26:22,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:26:22,152 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:26:22,152 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:26:22,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:26:22,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:26:22,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:26:22,154 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_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 [2022-11-22 01:26:22,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:26:22,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:26:22,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:26:22,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:26:22,641 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:26:22,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-22 01:26:25,760 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:26:26,050 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:26:26,051 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-22 01:26:26,063 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data/d7a6d10d7/5c504f62ea374603a500b3a27fe97c3f/FLAG037221e39 [2022-11-22 01:26:26,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/data/d7a6d10d7/5c504f62ea374603a500b3a27fe97c3f [2022-11-22 01:26:26,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:26:26,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:26:26,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:26:26,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:26:26,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:26:26,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aaeafb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26, skipping insertion in model container [2022-11-22 01:26:26,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:26:26,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:26:26,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-22 01:26:26,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:26:26,300 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:26:26,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-22 01:26:26,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:26:26,342 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:26:26,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26 WrapperNode [2022-11-22 01:26:26,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:26:26,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:26:26,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:26:26,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:26:26,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,386 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-11-22 01:26:26,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:26:26,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:26:26,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:26:26,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:26:26,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:26:26,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:26:26,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:26:26,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:26:26,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (1/1) ... [2022-11-22 01:26:26,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:26,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:26,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:26:26,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:26:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:26:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:26:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:26:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:26:26,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:26:26,643 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:26:26,887 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:26:26,895 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:26:26,895 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:26:26,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:26 BoogieIcfgContainer [2022-11-22 01:26:26,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:26:26,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:26:26,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:26:26,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:26:26,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:26:26" (1/3) ... [2022-11-22 01:26:26,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24446e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:26:26, skipping insertion in model container [2022-11-22 01:26:26,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:26" (2/3) ... [2022-11-22 01:26:26,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24446e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:26:26, skipping insertion in model container [2022-11-22 01:26:26,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:26" (3/3) ... [2022-11-22 01:26:26,918 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2022-11-22 01:26:26,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:26:26,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:26:27,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:26:27,035 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;@5ee1c0a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:26:27,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:26:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:26:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:26:27,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:27,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:27,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:27,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:27,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1810339678, now seen corresponding path program 1 times [2022-11-22 01:26:27,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:27,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841866221] [2022-11-22 01:26:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:27,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:27,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:27,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:26:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:27,188 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:26:27,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:26:27,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:26:27,374 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:27,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841866221] [2022-11-22 01:26:27,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841866221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:27,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:27,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:26:27,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328510729] [2022-11-22 01:26:27,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:27,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:26:27,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:27,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:26:27,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:26:27,450 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:26:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:27,602 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2022-11-22 01:26:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:26:27,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:26:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:27,614 INFO L225 Difference]: With dead ends: 38 [2022-11-22 01:26:27,614 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 01:26:27,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:26:27,624 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:27,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 46 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 01:26:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-11-22 01:26:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:26:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-22 01:26:27,682 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2022-11-22 01:26:27,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:27,682 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-22 01:26:27,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:26:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-22 01:26:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:26:27,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:27,685 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:27,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:27,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:27,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:27,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:27,902 INFO L85 PathProgramCache]: Analyzing trace with hash 679252028, now seen corresponding path program 1 times [2022-11-22 01:26:27,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:27,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116257818] [2022-11-22 01:26:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:27,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:27,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:27,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:26:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:27,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 01:26:27,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:26:28,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:26:28,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:28,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116257818] [2022-11-22 01:26:28,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116257818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:28,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:28,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:26:28,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139858958] [2022-11-22 01:26:28,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:28,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:26:28,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:28,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:26:28,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:26:28,109 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:26:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:28,200 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-22 01:26:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:26:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-22 01:26:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:28,203 INFO L225 Difference]: With dead ends: 31 [2022-11-22 01:26:28,203 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 01:26:28,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:26:28,207 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:28,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 66 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 01:26:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-11-22 01:26:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 18 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:26:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-22 01:26:28,221 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2022-11-22 01:26:28,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:28,223 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-22 01:26:28,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:26:28,223 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-22 01:26:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:26:28,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:28,226 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:28,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:28,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:28,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:28,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1082860028, now seen corresponding path program 1 times [2022-11-22 01:26:28,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:28,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076079038] [2022-11-22 01:26:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:28,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:28,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:28,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:28,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 01:26:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:28,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:26:28,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:26:28,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:26:28,857 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:28,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076079038] [2022-11-22 01:26:28,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076079038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:28,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [511446508] [2022-11-22 01:26:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:28,858 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:26:28,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:26:28,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:26:28,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-22 01:26:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:28,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:26:28,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:26:29,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:26:29,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [511446508] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:29,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066761478] [2022-11-22 01:26:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:29,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:29,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:26:29,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:26:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:29,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:26:29,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:26:29,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:26:29,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066761478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:29,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:26:29,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 9, 7] total 12 [2022-11-22 01:26:29,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274801315] [2022-11-22 01:26:29,395 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:26:29,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:26:29,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:26:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:26:29,396 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:26:29,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:29,761 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-22 01:26:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:26:29,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 20 [2022-11-22 01:26:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:29,766 INFO L225 Difference]: With dead ends: 47 [2022-11-22 01:26:29,766 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:26:29,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:26:29,767 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:29,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 40 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:26:29,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:26:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-11-22 01:26:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 29 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-22 01:26:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-22 01:26:29,793 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 20 [2022-11-22 01:26:29,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:29,793 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-22 01:26:29,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:26:29,794 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-22 01:26:29,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:26:29,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:29,795 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:29,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-22 01:26:30,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-22 01:26:30,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:30,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:30,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:30,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2028547162, now seen corresponding path program 2 times [2022-11-22 01:26:30,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:30,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040600412] [2022-11-22 01:26:30,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:26:30,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:30,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:30,402 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:30,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-22 01:26:30,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:26:30,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:30,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:26:30,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:26:30,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:30,749 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:30,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040600412] [2022-11-22 01:26:30,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040600412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:30,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [483650126] [2022-11-22 01:26:30,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:26:30,750 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:26:30,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:26:30,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:26:30,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-22 01:26:30,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:26:30,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:30,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:26:30,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:26:31,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:31,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [483650126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:31,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70765830] [2022-11-22 01:26:31,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:26:31,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:31,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:31,129 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:26:31,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:26:31,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:26:31,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:31,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 01:26:31,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:26:31,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:31,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70765830] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:31,474 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:26:31,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 9 [2022-11-22 01:26:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419132697] [2022-11-22 01:26:31,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:26:31,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:26:31,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:31,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:26:31,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:26:31,477 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:26:31,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:31,716 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2022-11-22 01:26:31,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:26:31,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2022-11-22 01:26:31,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:31,720 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:26:31,720 INFO L226 Difference]: Without dead ends: 46 [2022-11-22 01:26:31,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:26:31,722 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:31,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:31,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-22 01:26:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-22 01:26:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-22 01:26:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-22 01:26:31,737 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 26 [2022-11-22 01:26:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:31,738 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-22 01:26:31,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:26:31,739 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-22 01:26:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:26:31,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:31,740 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-22 01:26:31,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:31,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:32,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:32,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:32,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:32,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:32,355 INFO L85 PathProgramCache]: Analyzing trace with hash -690507524, now seen corresponding path program 3 times [2022-11-22 01:26:32,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:32,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134025023] [2022-11-22 01:26:32,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:26:32,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:32,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:32,358 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:32,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-22 01:26:32,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:26:32,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:32,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:26:32,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-22 01:26:32,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:32,823 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134025023] [2022-11-22 01:26:32,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134025023] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1487490076] [2022-11-22 01:26:32,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:26:32,824 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:26:32,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:26:32,825 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:26:32,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-22 01:26:32,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:26:32,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:32,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:26:32,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-22 01:26:33,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:33,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1487490076] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143676017] [2022-11-22 01:26:33,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:26:33,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:33,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:33,129 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:26:33,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:26:33,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:26:33,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:33,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 01:26:33,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-22 01:26:33,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:33,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143676017] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:33,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:26:33,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 10] total 11 [2022-11-22 01:26:33,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862769834] [2022-11-22 01:26:33,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:26:33,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:26:33,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:26:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:26:33,420 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:26:34,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:34,223 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-22 01:26:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:26:34,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 39 [2022-11-22 01:26:34,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:34,225 INFO L225 Difference]: With dead ends: 52 [2022-11-22 01:26:34,225 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 01:26:34,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:26:34,227 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:34,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 69 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:26:34,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 01:26:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-22 01:26:34,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 35 states have internal predecessors, (35), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-22 01:26:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-22 01:26:34,240 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 39 [2022-11-22 01:26:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:34,241 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-22 01:26:34,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:26:34,241 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-11-22 01:26:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-22 01:26:34,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:34,243 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-22 01:26:34,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:34,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:34,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:34,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:34,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:34,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:34,852 INFO L85 PathProgramCache]: Analyzing trace with hash -962754338, now seen corresponding path program 4 times [2022-11-22 01:26:34,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:34,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166913249] [2022-11-22 01:26:34,852 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:26:34,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:34,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:34,854 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:34,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-22 01:26:34,932 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:26:34,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:34,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 01:26:34,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:26:35,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:26:35,721 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166913249] [2022-11-22 01:26:35,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166913249] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [717476582] [2022-11-22 01:26:35,722 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:26:35,722 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:26:35,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:26:35,724 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:26:35,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-22 01:26:35,864 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:26:35,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:35,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-22 01:26:35,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:26:36,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:26:36,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [717476582] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:36,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288235236] [2022-11-22 01:26:36,568 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:26:36,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:36,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:36,570 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:26:36,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:26:36,659 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:26:36,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:36,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-22 01:26:36,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-22 01:26:37,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:26:37,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288235236] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:37,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:26:37,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11, 10, 12, 10] total 21 [2022-11-22 01:26:37,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131063496] [2022-11-22 01:26:37,171 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:26:37,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 01:26:37,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:37,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 01:26:37,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:26:37,173 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 12 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-22 01:26:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:38,370 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2022-11-22 01:26:38,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:26:38,371 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 12 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 59 [2022-11-22 01:26:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:38,372 INFO L225 Difference]: With dead ends: 84 [2022-11-22 01:26:38,373 INFO L226 Difference]: Without dead ends: 82 [2022-11-22 01:26:38,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:26:38,374 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 51 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:38,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 96 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:26:38,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-22 01:26:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-11-22 01:26:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 53 states have internal predecessors, (53), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-22 01:26:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2022-11-22 01:26:38,403 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 59 [2022-11-22 01:26:38,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:38,404 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2022-11-22 01:26:38,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 12 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-22 01:26:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2022-11-22 01:26:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-22 01:26:38,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:38,408 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1] [2022-11-22 01:26:38,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:38,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:38,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:39,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:39,020 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:39,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:39,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1753079548, now seen corresponding path program 5 times [2022-11-22 01:26:39,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:39,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777225789] [2022-11-22 01:26:39,022 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-22 01:26:39,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:39,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:39,023 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:39,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-22 01:26:39,215 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-11-22 01:26:39,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:39,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-22 01:26:39,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-22 01:26:40,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-22 01:26:41,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777225789] [2022-11-22 01:26:41,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777225789] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [544918660] [2022-11-22 01:26:41,752 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-22 01:26:41,752 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:26:41,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:26:41,753 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:26:41,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-22 01:26:42,090 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-11-22 01:26:42,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:42,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-22 01:26:42,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-22 01:26:42,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-22 01:26:43,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [544918660] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:43,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631556055] [2022-11-22 01:26:43,560 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-22 01:26:43,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:43,562 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:26:43,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-22 01:26:43,764 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-11-22 01:26:43,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:26:43,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-22 01:26:43,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-22 01:26:44,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-22 01:26:44,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631556055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:26:44,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:26:44,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 18, 17, 17, 15] total 31 [2022-11-22 01:26:44,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462500560] [2022-11-22 01:26:44,892 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:26:44,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-22 01:26:44,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:44,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-22 01:26:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:26:44,899 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 31 states, 28 states have (on average 2.642857142857143) internal successors, (74), 30 states have internal predecessors, (74), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 18 states have call predecessors, (39), 20 states have call successors, (39) [2022-11-22 01:26:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:48,808 INFO L93 Difference]: Finished difference Result 143 states and 177 transitions. [2022-11-22 01:26:48,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-22 01:26:48,817 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 2.642857142857143) internal successors, (74), 30 states have internal predecessors, (74), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 18 states have call predecessors, (39), 20 states have call successors, (39) Word has length 124 [2022-11-22 01:26:48,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:48,823 INFO L225 Difference]: With dead ends: 143 [2022-11-22 01:26:48,823 INFO L226 Difference]: Without dead ends: 141 [2022-11-22 01:26:48,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=551, Invalid=2311, Unknown=0, NotChecked=0, Total=2862 [2022-11-22 01:26:48,826 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:48,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 189 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:26:48,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-22 01:26:48,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2022-11-22 01:26:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.0113636363636365) internal successors, (89), 89 states have internal predecessors, (89), 41 states have call successors, (41), 8 states have call predecessors, (41), 8 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-22 01:26:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2022-11-22 01:26:48,889 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 124 [2022-11-22 01:26:48,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:48,890 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2022-11-22 01:26:48,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 2.642857142857143) internal successors, (74), 30 states have internal predecessors, (74), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 18 states have call predecessors, (39), 20 states have call successors, (39) [2022-11-22 01:26:48,891 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2022-11-22 01:26:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-22 01:26:48,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:48,894 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 28, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2022-11-22 01:26:48,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:49,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:49,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:49,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:26:49,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:26:49,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:49,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1810513054, now seen corresponding path program 6 times [2022-11-22 01:26:49,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:49,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6296881] [2022-11-22 01:26:49,514 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-22 01:26:49,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:49,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:49,515 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:26:49,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-22 01:26:49,809 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2022-11-22 01:26:49,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-22 01:26:49,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:26:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:26:50,074 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 01:26:50,074 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:26:50,076 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:26:50,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:50,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:26:50,297 INFO L444 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2022-11-22 01:26:50,300 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:26:50,390 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,390 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,390 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,391 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,391 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,391 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,391 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,391 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,391 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,392 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,392 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,392 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,392 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,392 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,392 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:26:50 BoogieIcfgContainer [2022-11-22 01:26:50,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:26:50,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:26:50,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:26:50,440 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:26:50,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:26" (3/4) ... [2022-11-22 01:26:50,442 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:26:50,499 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,499 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,499 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,499 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,499 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:26:50,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:26:50,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:26:50,648 INFO L158 Benchmark]: Toolchain (without parser) took 24561.89ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 61.0MB in the beginning and 52.3MB in the end (delta: 8.7MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2022-11-22 01:26:50,648 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:26:50,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.78ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 50.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:26:50,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.81ms. Allocated memory is still 83.9MB. Free memory was 50.0MB in the beginning and 48.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:26:50,649 INFO L158 Benchmark]: Boogie Preprocessor took 39.18ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:26:50,649 INFO L158 Benchmark]: RCFGBuilder took 470.91ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 56.3MB in the end (delta: -9.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-22 01:26:50,650 INFO L158 Benchmark]: TraceAbstraction took 23539.15ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 55.6MB in the beginning and 69.1MB in the end (delta: -13.5MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2022-11-22 01:26:50,650 INFO L158 Benchmark]: Witness Printer took 207.24ms. Allocated memory is still 146.8MB. Free memory was 69.1MB in the beginning and 52.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:26:50,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.78ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 50.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.81ms. Allocated memory is still 83.9MB. Free memory was 50.0MB in the beginning and 48.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.18ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.91ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 56.3MB in the end (delta: -9.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23539.15ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 55.6MB in the beginning and 69.1MB in the end (delta: -13.5MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Witness Printer took 207.24ms. Allocated memory is still 146.8MB. Free memory was 69.1MB in the beginning and 52.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L33] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L34] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L36] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 1); [L37] const SORT_12 msb_SORT_12 = (SORT_12)1 << (1 - 1); [L39] const SORT_1 var_2 = 1; [L40] const SORT_1 var_11 = mask_SORT_1; [L41] const SORT_1 var_16 = 3; [L44] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 init_5_arg_1 = var_2; [L48] state_3 = init_5_arg_1 [L49] SORT_1 init_6_arg_1 = var_2; [L50] state_4 = init_6_arg_1 VAL [init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_16=3, var_2=1] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_16=3, var_2=1] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, state_3=1, state_4=1, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=1, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=1, next_9_arg_1=2, state_3=1, state_4=2, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=2, var_7_arg_0=1, var_7_arg_1=1, var_8=1, var_8_arg_0=1, var_8_arg_1=1] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=2, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=1, var_15_arg_0=1, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=1, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=2, next_9_arg_1=3, state_3=2, state_4=3, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=3, var_7_arg_0=2, var_7_arg_1=1, var_8=2, var_8_arg_0=1, var_8_arg_1=2] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=3, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=2, var_15_arg_0=2, var_16=3, var_17=0, var_17_arg_0=3, var_17_arg_1=3, var_18=0, var_18_arg_0=0, var_18_arg_1=2, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=6, var_15_arg_0=6, var_16=3, var_17=1, var_17_arg_0=4, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=6, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=6, next_9_arg_1=4, state_3=6, state_4=4, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=6, var_15_arg_0=6, var_16=3, var_17=1, var_17_arg_0=4, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=6, var_2=1, var_7=4, var_7_arg_0=3, var_7_arg_1=1, var_8=6, var_8_arg_0=2, var_8_arg_1=3] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=24, next_9_arg_1=5, state_3=24, state_4=5, var_11=15, var_13=0, var_13_arg_0=4, var_13_arg_1=15, var_15=6, var_15_arg_0=6, var_16=3, var_17=1, var_17_arg_0=4, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=6, var_2=1, var_7=5, var_7_arg_0=4, var_7_arg_1=1, var_8=24, var_8_arg_0=6, var_8_arg_1=4] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=24, next_9_arg_1=5, state_3=24, state_4=5, var_11=15, var_13=0, var_13_arg_0=5, var_13_arg_1=15, var_15=6, var_15_arg_0=6, var_16=3, var_17=1, var_17_arg_0=4, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=6, var_2=1, var_7=5, var_7_arg_0=4, var_7_arg_1=1, var_8=24, var_8_arg_0=6, var_8_arg_1=4] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=24, next_9_arg_1=5, state_3=24, state_4=5, var_11=15, var_13=0, var_13_arg_0=5, var_13_arg_1=15, var_15=6, var_15_arg_0=6, var_16=3, var_17=1, var_17_arg_0=4, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=6, var_2=1, var_7=5, var_7_arg_0=4, var_7_arg_1=1, var_8=24, var_8_arg_0=6, var_8_arg_1=4] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=24, next_9_arg_1=5, state_3=24, state_4=5, var_11=15, var_13=0, var_13_arg_0=5, var_13_arg_1=15, var_15=24, var_15_arg_0=24, var_16=3, var_17=1, var_17_arg_0=5, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=24, var_2=1, var_7=5, var_7_arg_0=4, var_7_arg_1=1, var_8=24, var_8_arg_0=6, var_8_arg_1=4] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=24, next_9_arg_1=5, state_3=24, state_4=5, var_11=15, var_13=0, var_13_arg_0=5, var_13_arg_1=15, var_15=24, var_15_arg_0=24, var_16=3, var_17=1, var_17_arg_0=5, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=24, var_2=1, var_7=5, var_7_arg_0=4, var_7_arg_1=1, var_8=24, var_8_arg_0=6, var_8_arg_1=4] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=120, next_9_arg_1=6, state_3=120, state_4=6, var_11=15, var_13=0, var_13_arg_0=5, var_13_arg_1=15, var_15=24, var_15_arg_0=24, var_16=3, var_17=1, var_17_arg_0=5, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=24, var_2=1, var_7=6, var_7_arg_0=5, var_7_arg_1=1, var_8=120, var_8_arg_0=24, var_8_arg_1=5] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=120, next_9_arg_1=6, state_3=120, state_4=6, var_11=15, var_13=0, var_13_arg_0=6, var_13_arg_1=15, var_15=24, var_15_arg_0=24, var_16=3, var_17=1, var_17_arg_0=5, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=24, var_2=1, var_7=6, var_7_arg_0=5, var_7_arg_1=1, var_8=120, var_8_arg_0=24, var_8_arg_1=5] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=120, next_9_arg_1=6, state_3=120, state_4=6, var_11=15, var_13=0, var_13_arg_0=6, var_13_arg_1=15, var_15=24, var_15_arg_0=24, var_16=3, var_17=1, var_17_arg_0=5, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=24, var_2=1, var_7=6, var_7_arg_0=5, var_7_arg_1=1, var_8=120, var_8_arg_0=24, var_8_arg_1=5] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=120, next_9_arg_1=6, state_3=120, state_4=6, var_11=15, var_13=0, var_13_arg_0=6, var_13_arg_1=15, var_15=120, var_15_arg_0=120, var_16=3, var_17=1, var_17_arg_0=6, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=120, var_2=1, var_7=6, var_7_arg_0=5, var_7_arg_1=1, var_8=120, var_8_arg_0=24, var_8_arg_1=5] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=120, next_9_arg_1=6, state_3=120, state_4=6, var_11=15, var_13=0, var_13_arg_0=6, var_13_arg_1=15, var_15=120, var_15_arg_0=120, var_16=3, var_17=1, var_17_arg_0=6, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=120, var_2=1, var_7=6, var_7_arg_0=5, var_7_arg_1=1, var_8=120, var_8_arg_0=24, var_8_arg_1=5] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=208, next_9_arg_1=7, state_3=208, state_4=7, var_11=15, var_13=0, var_13_arg_0=6, var_13_arg_1=15, var_15=120, var_15_arg_0=120, var_16=3, var_17=1, var_17_arg_0=6, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=120, var_2=1, var_7=7, var_7_arg_0=6, var_7_arg_1=1, var_8=208, var_8_arg_0=120, var_8_arg_1=6] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=208, next_9_arg_1=7, state_3=208, state_4=7, var_11=15, var_13=0, var_13_arg_0=7, var_13_arg_1=15, var_15=120, var_15_arg_0=120, var_16=3, var_17=1, var_17_arg_0=6, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=120, var_2=1, var_7=7, var_7_arg_0=6, var_7_arg_1=1, var_8=208, var_8_arg_0=120, var_8_arg_1=6] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=208, next_9_arg_1=7, state_3=208, state_4=7, var_11=15, var_13=0, var_13_arg_0=7, var_13_arg_1=15, var_15=120, var_15_arg_0=120, var_16=3, var_17=1, var_17_arg_0=6, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=120, var_2=1, var_7=7, var_7_arg_0=6, var_7_arg_1=1, var_8=208, var_8_arg_0=120, var_8_arg_1=6] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=208, next_9_arg_1=7, state_3=208, state_4=7, var_11=15, var_13=0, var_13_arg_0=7, var_13_arg_1=15, var_15=208, var_15_arg_0=208, var_16=3, var_17=1, var_17_arg_0=7, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=208, var_2=1, var_7=7, var_7_arg_0=6, var_7_arg_1=1, var_8=208, var_8_arg_0=120, var_8_arg_1=6] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=208, next_9_arg_1=7, state_3=208, state_4=7, var_11=15, var_13=0, var_13_arg_0=7, var_13_arg_1=15, var_15=208, var_15_arg_0=208, var_16=3, var_17=1, var_17_arg_0=7, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=208, var_2=1, var_7=7, var_7_arg_0=6, var_7_arg_1=1, var_8=208, var_8_arg_0=120, var_8_arg_1=6] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=176, next_9_arg_1=8, state_3=176, state_4=8, var_11=15, var_13=0, var_13_arg_0=7, var_13_arg_1=15, var_15=208, var_15_arg_0=208, var_16=3, var_17=1, var_17_arg_0=7, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=208, var_2=1, var_7=8, var_7_arg_0=7, var_7_arg_1=1, var_8=176, var_8_arg_0=208, var_8_arg_1=7] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=176, next_9_arg_1=8, state_3=176, state_4=8, var_11=15, var_13=0, var_13_arg_0=8, var_13_arg_1=15, var_15=208, var_15_arg_0=208, var_16=3, var_17=1, var_17_arg_0=7, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=208, var_2=1, var_7=8, var_7_arg_0=7, var_7_arg_1=1, var_8=176, var_8_arg_0=208, var_8_arg_1=7] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=176, next_9_arg_1=8, state_3=176, state_4=8, var_11=15, var_13=0, var_13_arg_0=8, var_13_arg_1=15, var_15=208, var_15_arg_0=208, var_16=3, var_17=1, var_17_arg_0=7, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=208, var_2=1, var_7=8, var_7_arg_0=7, var_7_arg_1=1, var_8=176, var_8_arg_0=208, var_8_arg_1=7] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=176, next_9_arg_1=8, state_3=176, state_4=8, var_11=15, var_13=0, var_13_arg_0=8, var_13_arg_1=15, var_15=176, var_15_arg_0=176, var_16=3, var_17=1, var_17_arg_0=8, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=176, var_2=1, var_7=8, var_7_arg_0=7, var_7_arg_1=1, var_8=176, var_8_arg_0=208, var_8_arg_1=7] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=176, next_9_arg_1=8, state_3=176, state_4=8, var_11=15, var_13=0, var_13_arg_0=8, var_13_arg_1=15, var_15=176, var_15_arg_0=176, var_16=3, var_17=1, var_17_arg_0=8, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=176, var_2=1, var_7=8, var_7_arg_0=7, var_7_arg_1=1, var_8=176, var_8_arg_0=208, var_8_arg_1=7] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=9, state_3=128, state_4=9, var_11=15, var_13=0, var_13_arg_0=8, var_13_arg_1=15, var_15=176, var_15_arg_0=176, var_16=3, var_17=1, var_17_arg_0=8, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=176, var_2=1, var_7=9, var_7_arg_0=8, var_7_arg_1=1, var_8=128, var_8_arg_0=176, var_8_arg_1=8] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=9, state_3=128, state_4=9, var_11=15, var_13=0, var_13_arg_0=9, var_13_arg_1=15, var_15=176, var_15_arg_0=176, var_16=3, var_17=1, var_17_arg_0=8, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=176, var_2=1, var_7=9, var_7_arg_0=8, var_7_arg_1=1, var_8=128, var_8_arg_0=176, var_8_arg_1=8] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=9, state_3=128, state_4=9, var_11=15, var_13=0, var_13_arg_0=9, var_13_arg_1=15, var_15=176, var_15_arg_0=176, var_16=3, var_17=1, var_17_arg_0=8, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=176, var_2=1, var_7=9, var_7_arg_0=8, var_7_arg_1=1, var_8=128, var_8_arg_0=176, var_8_arg_1=8] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=9, state_3=128, state_4=9, var_11=15, var_13=0, var_13_arg_0=9, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=9, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=9, var_7_arg_0=8, var_7_arg_1=1, var_8=128, var_8_arg_0=176, var_8_arg_1=8] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=9, state_3=128, state_4=9, var_11=15, var_13=0, var_13_arg_0=9, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=9, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=9, var_7_arg_0=8, var_7_arg_1=1, var_8=128, var_8_arg_0=176, var_8_arg_1=8] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=10, state_3=128, state_4=10, var_11=15, var_13=0, var_13_arg_0=9, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=9, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=10, var_7_arg_0=9, var_7_arg_1=1, var_8=128, var_8_arg_0=128, var_8_arg_1=9] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=10, state_3=128, state_4=10, var_11=15, var_13=0, var_13_arg_0=10, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=9, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=10, var_7_arg_0=9, var_7_arg_1=1, var_8=128, var_8_arg_0=128, var_8_arg_1=9] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=10, state_3=128, state_4=10, var_11=15, var_13=0, var_13_arg_0=10, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=9, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=10, var_7_arg_0=9, var_7_arg_1=1, var_8=128, var_8_arg_0=128, var_8_arg_1=9] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=10, state_3=128, state_4=10, var_11=15, var_13=0, var_13_arg_0=10, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=10, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=10, var_7_arg_0=9, var_7_arg_1=1, var_8=128, var_8_arg_0=128, var_8_arg_1=9] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=128, next_9_arg_1=10, state_3=128, state_4=10, var_11=15, var_13=0, var_13_arg_0=10, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=10, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=10, var_7_arg_0=9, var_7_arg_1=1, var_8=128, var_8_arg_0=128, var_8_arg_1=9] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=11, state_3=0, state_4=11, var_11=15, var_13=0, var_13_arg_0=10, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=10, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=11, var_7_arg_0=10, var_7_arg_1=1, var_8=0, var_8_arg_0=128, var_8_arg_1=10] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=11, state_3=0, state_4=11, var_11=15, var_13=0, var_13_arg_0=11, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=10, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=11, var_7_arg_0=10, var_7_arg_1=1, var_8=0, var_8_arg_0=128, var_8_arg_1=10] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=11, state_3=0, state_4=11, var_11=15, var_13=0, var_13_arg_0=11, var_13_arg_1=15, var_15=128, var_15_arg_0=128, var_16=3, var_17=1, var_17_arg_0=10, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=128, var_2=1, var_7=11, var_7_arg_0=10, var_7_arg_1=1, var_8=0, var_8_arg_0=128, var_8_arg_1=10] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=11, state_3=0, state_4=11, var_11=15, var_13=0, var_13_arg_0=11, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=11, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=11, var_7_arg_0=10, var_7_arg_1=1, var_8=0, var_8_arg_0=128, var_8_arg_1=10] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=11, state_3=0, state_4=11, var_11=15, var_13=0, var_13_arg_0=11, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=11, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=11, var_7_arg_0=10, var_7_arg_1=1, var_8=0, var_8_arg_0=128, var_8_arg_1=10] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=12, state_3=0, state_4=12, var_11=15, var_13=0, var_13_arg_0=11, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=11, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=12, var_7_arg_0=11, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=11] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=12, state_3=0, state_4=12, var_11=15, var_13=0, var_13_arg_0=12, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=11, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=12, var_7_arg_0=11, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=11] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=12, state_3=0, state_4=12, var_11=15, var_13=0, var_13_arg_0=12, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=11, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=12, var_7_arg_0=11, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=11] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=12, state_3=0, state_4=12, var_11=15, var_13=0, var_13_arg_0=12, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=12, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=12, var_7_arg_0=11, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=11] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=12, state_3=0, state_4=12, var_11=15, var_13=0, var_13_arg_0=12, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=12, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=12, var_7_arg_0=11, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=11] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=13, state_3=0, state_4=13, var_11=15, var_13=0, var_13_arg_0=12, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=12, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=13, var_7_arg_0=12, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=12] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=13, state_3=0, state_4=13, var_11=15, var_13=0, var_13_arg_0=13, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=12, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=13, var_7_arg_0=12, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=12] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=13, state_3=0, state_4=13, var_11=15, var_13=0, var_13_arg_0=13, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=12, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=13, var_7_arg_0=12, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=12] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=13, state_3=0, state_4=13, var_11=15, var_13=0, var_13_arg_0=13, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=13, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=13, var_7_arg_0=12, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=12] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=13, state_3=0, state_4=13, var_11=15, var_13=0, var_13_arg_0=13, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=13, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=13, var_7_arg_0=12, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=12] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=14, state_3=0, state_4=14, var_11=15, var_13=0, var_13_arg_0=13, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=13, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=14, var_7_arg_0=13, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=13] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=14, state_3=0, state_4=14, var_11=15, var_13=0, var_13_arg_0=14, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=13, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=14, var_7_arg_0=13, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=13] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L59] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=14, state_3=0, state_4=14, var_11=15, var_13=0, var_13_arg_0=14, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=13, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=14, var_7_arg_0=13, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=13] [L60] SORT_1 var_17_arg_0 = state_4; [L61] SORT_1 var_17_arg_1 = var_16; [L62] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L63] SORT_1 var_15_arg_0 = state_3; [L64] SORT_12 var_15 = var_15_arg_0 >> 0; [L65] SORT_12 var_18_arg_0 = var_17; [L66] SORT_12 var_18_arg_1 = var_15; [L67] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L68] var_18 = var_18 & mask_SORT_12 [L69] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=14, state_3=0, state_4=14, var_11=15, var_13=0, var_13_arg_0=14, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=14, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=14, var_7_arg_0=13, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=13] [L70] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L28] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L70] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=14, state_3=0, state_4=14, var_11=15, var_13=0, var_13_arg_0=14, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=14, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=14, var_7_arg_0=13, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=13] [L72] SORT_1 var_7_arg_0 = state_4; [L73] SORT_1 var_7_arg_1 = var_2; [L74] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L75] var_7 = var_7 & mask_SORT_1 [L76] SORT_1 next_9_arg_1 = var_7; [L77] SORT_1 var_8_arg_0 = state_3; [L78] SORT_1 var_8_arg_1 = state_4; [L79] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L80] SORT_1 next_10_arg_1 = var_8; [L82] state_4 = next_9_arg_1 [L83] state_3 = next_10_arg_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=15, state_3=0, state_4=15, var_11=15, var_13=0, var_13_arg_0=14, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=14, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=15, var_7_arg_0=14, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=14] [L55] SORT_1 var_13_arg_0 = state_4; [L56] SORT_1 var_13_arg_1 = var_11; [L57] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L58] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=1, bad_19_arg_0=0, init_5_arg_1=1, init_6_arg_1=1, mask_SORT_1=15, mask_SORT_12=1, msb_SORT_1=8, msb_SORT_12=1, next_10_arg_1=0, next_9_arg_1=15, state_3=0, state_4=15, var_11=15, var_13=1, var_13_arg_0=15, var_13_arg_1=15, var_15=0, var_15_arg_0=0, var_16=3, var_17=1, var_17_arg_0=14, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=0, var_2=1, var_7=15, var_7_arg_0=14, var_7_arg_1=1, var_8=0, var_8_arg_0=0, var_8_arg_1=14] [L59] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=0] [L28] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L28] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.3s, OverallIterations: 8, TraceHistogramMax: 29, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 549 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 452 mSDsCounter, 245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2056 IncrementalHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 245 mSolverCounterUnsat, 97 mSDtfsCounter, 2056 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1496 GetRequests, 1353 SyntacticMatches, 4 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=7, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 1013 NumberOfCodeBlocks, 995 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1407 ConstructedInterpolants, 28 QuantifiedInterpolants, 20755 SizeOfPredicates, 414 NumberOfNonLiveVariables, 2359 ConjunctsInSsa, 503 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 4738/6389 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 01:26:50,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a495148b-1f2c-4474-b312-2297c923d276/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE