./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 8393723b 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_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/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_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 07:04:24,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:04:24,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:04:24,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:04:24,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:04:24,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:04:24,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:04:24,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:04:24,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:04:24,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:04:24,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:04:24,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:04:24,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:04:24,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:04:24,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:04:24,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:04:24,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:04:24,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:04:24,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:04:24,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:04:24,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:04:24,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:04:24,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:04:24,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:04:24,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:04:24,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:04:24,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:04:24,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:04:24,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:04:24,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:04:24,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:04:24,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:04:24,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:04:24,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:04:24,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:04:24,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:04:24,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:04:24,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:04:24,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:04:24,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:04:24,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:04:24,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:04:24,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:04:24,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:04:24,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:04:24,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:04:24,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:04:24,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:04:24,223 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:04:24,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:04:24,223 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:04:24,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:04:24,225 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:04:24,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:04:24,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:04:24,225 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:04:24,226 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:04:24,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:04:24,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:04:24,226 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:04:24,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:04:24,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:04:24,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:04:24,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:04:24,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:04:24,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:04:24,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:04:24,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:04:24,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:04:24,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:04:24,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:04:24,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:24,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:04:24,231 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:04:24,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:04:24,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:04:24,232 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:04:24,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:04:24,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:04:24,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:04:24,233 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_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 [2022-11-19 07:04:24,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:04:24,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:04:24,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:04:24,555 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:04:24,556 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:04:24,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-19 07:04:24,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/255142c72/4bf6e8667ce641ffbb3b98dd0ac5f06e/FLAGecf2487f5 [2022-11-19 07:04:25,200 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:04:25,201 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-19 07:04:25,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/255142c72/4bf6e8667ce641ffbb3b98dd0ac5f06e/FLAGecf2487f5 [2022-11-19 07:04:25,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/255142c72/4bf6e8667ce641ffbb3b98dd0ac5f06e [2022-11-19 07:04:25,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:04:25,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:04:25,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:25,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:04:25,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:04:25,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:25,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de566d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25, skipping insertion in model container [2022-11-19 07:04:25,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:25,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:04:25,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:04:25,855 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-19 07:04:25,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:25,924 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:04:25,941 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-19 07:04:25,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:25,988 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:04:25,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25 WrapperNode [2022-11-19 07:04:25,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:25,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:25,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:04:25,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:04:25,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,045 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-11-19 07:04:26,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:26,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:04:26,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:04:26,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:04:26,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:04:26,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:04:26,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:04:26,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:04:26,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (1/1) ... [2022-11-19 07:04:26,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:26,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:26,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:04:26,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:04:26,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:04:26,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:04:26,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:04:26,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:04:26,255 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:04:26,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:04:26,472 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:04:26,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:04:26,558 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:04:26,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:26 BoogieIcfgContainer [2022-11-19 07:04:26,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:04:26,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:04:26,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:04:26,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:04:26,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:04:25" (1/3) ... [2022-11-19 07:04:26,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eaa4835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:26, skipping insertion in model container [2022-11-19 07:04:26,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:25" (2/3) ... [2022-11-19 07:04:26,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eaa4835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:26, skipping insertion in model container [2022-11-19 07:04:26,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:26" (3/3) ... [2022-11-19 07:04:26,596 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2022-11-19 07:04:26,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:04:26,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:04:26,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:04:26,702 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;@e6ad9dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:04:26,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:04:26,706 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) [2022-11-19 07:04:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:04:26,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:26,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:04:26,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:26,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1592817245, now seen corresponding path program 1 times [2022-11-19 07:04:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:26,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735440897] [2022-11-19 07:04:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:27,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:27,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735440897] [2022-11-19 07:04:27,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735440897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:27,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:27,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:04:27,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698098223] [2022-11-19 07:04:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:04:27,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:27,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:04:27,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:04:27,347 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) [2022-11-19 07:04:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:27,560 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2022-11-19 07:04:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:04:27,564 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 [2022-11-19 07:04:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:27,575 INFO L225 Difference]: With dead ends: 34 [2022-11-19 07:04:27,576 INFO L226 Difference]: Without dead ends: 22 [2022-11-19 07:04:27,580 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 [2022-11-19 07:04:27,586 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:27,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 35 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:04:27,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-19 07:04:27,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-19 07:04:27,633 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) [2022-11-19 07:04:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-19 07:04:27,637 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2022-11-19 07:04:27,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:27,638 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-19 07:04:27,639 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) [2022-11-19 07:04:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-19 07:04:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:04:27,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:27,641 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:27,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:04:27,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1229718940, now seen corresponding path program 1 times [2022-11-19 07:04:27,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:27,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834285582] [2022-11-19 07:04:27,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:27,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:28,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:04:28,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834285582] [2022-11-19 07:04:28,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834285582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:28,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:28,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:04:28,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905509527] [2022-11-19 07:04:28,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:28,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:04:28,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:04:28,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:04:28,261 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) [2022-11-19 07:04:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:28,378 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-19 07:04:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:04:28,380 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 [2022-11-19 07:04:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:28,383 INFO L225 Difference]: With dead ends: 30 [2022-11-19 07:04:28,383 INFO L226 Difference]: Without dead ends: 28 [2022-11-19 07:04:28,388 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 [2022-11-19 07:04:28,390 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:28,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 53 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:04:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-19 07:04:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-19 07:04:28,407 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) [2022-11-19 07:04:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-19 07:04:28,409 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 12 [2022-11-19 07:04:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:28,411 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-19 07:04:28,414 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) [2022-11-19 07:04:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-19 07:04:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:04:28,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:28,416 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:28,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:04:28,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:28,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:28,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1839514990, now seen corresponding path program 1 times [2022-11-19 07:04:28,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:04:28,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508432992] [2022-11-19 07:04:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:04:28,442 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:04:28,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040405737] [2022-11-19 07:04:28,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:28,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:28,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:28,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:28,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:04:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:04:28,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:04:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:04:28,615 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:04:28,615 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:04:28,619 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:04:28,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:28,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:28,825 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-19 07:04:28,828 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:04:28,874 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:28,875 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:28,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:04:28 BoogieIcfgContainer [2022-11-19 07:04:28,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:04:28,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:04:28,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:04:28,883 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:04:28,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:26" (3/4) ... [2022-11-19 07:04:28,886 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:04:28,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:04:28,892 INFO L158 Benchmark]: Toolchain (without parser) took 3244.57ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 88.8MB in the beginning and 76.3MB in the end (delta: 12.5MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2022-11-19 07:04:28,893 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:28,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.10ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 103.1MB in the end (delta: -14.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:04:28,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.99ms. Allocated memory is still 130.0MB. Free memory was 103.1MB in the beginning and 101.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:28,894 INFO L158 Benchmark]: Boogie Preprocessor took 46.97ms. Allocated memory is still 130.0MB. Free memory was 101.5MB in the beginning and 100.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:28,894 INFO L158 Benchmark]: RCFGBuilder took 466.07ms. Allocated memory is still 130.0MB. Free memory was 100.4MB in the beginning and 84.2MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 07:04:28,895 INFO L158 Benchmark]: TraceAbstraction took 2306.83ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 83.7MB in the beginning and 76.3MB in the end (delta: 7.4MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2022-11-19 07:04:28,895 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 176.2MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:28,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.10ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 103.1MB in the end (delta: -14.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.99ms. Allocated memory is still 130.0MB. Free memory was 103.1MB in the beginning and 101.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.97ms. Allocated memory is still 130.0MB. Free memory was 101.5MB in the beginning and 100.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.07ms. Allocated memory is still 130.0MB. Free memory was 100.4MB in the beginning and 84.2MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2306.83ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 83.7MB in the beginning and 76.3MB in the end (delta: 7.4MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 176.2MB. Free memory is still 76.3MB. 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: 2.2s, 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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 23 mSDtfsCounter, 76 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, 0.1s 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, 1.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 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 [2022-11-19 07:04:28,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/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_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 07:04:31,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:04:31,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:04:31,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:04:31,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:04:31,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:04:31,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:04:31,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:04:31,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:04:31,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:04:31,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:04:31,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:04:31,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:04:31,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:04:31,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:04:31,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:04:31,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:04:31,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:04:31,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:04:31,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:04:31,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:04:31,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:04:31,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:04:31,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:04:31,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:04:31,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:04:31,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:04:31,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:04:31,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:04:31,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:04:31,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:04:31,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:04:31,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:04:31,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:04:31,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:04:31,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:04:31,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:04:31,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:04:31,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:04:31,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:04:31,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:04:31,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:04:31,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:04:31,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:04:31,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:04:31,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:04:31,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:04:31,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:04:31,482 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:04:31,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:04:31,483 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:04:31,483 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:04:31,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:04:31,483 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:04:31,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:04:31,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:04:31,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:04:31,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:04:31,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:04:31,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:04:31,486 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:04:31,486 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:04:31,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:04:31,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:04:31,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:04:31,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:04:31,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:04:31,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:04:31,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:31,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:04:31,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:04:31,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:04:31,489 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:04:31,489 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:31,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:04:31,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:04:31,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:04:31,490 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_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 [2022-11-19 07:04:31,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:04:31,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:04:31,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:04:31,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:04:31,910 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:04:31,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-19 07:04:31,990 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/f9841bccc/c1ee396d013e4495a125c4fdf4a02d6e/FLAGb4266288d [2022-11-19 07:04:32,478 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:04:32,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-19 07:04:32,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/f9841bccc/c1ee396d013e4495a125c4fdf4a02d6e/FLAGb4266288d [2022-11-19 07:04:32,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/data/f9841bccc/c1ee396d013e4495a125c4fdf4a02d6e [2022-11-19 07:04:32,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:04:32,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:04:32,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:32,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:04:32,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:04:32,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5edd0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:32, skipping insertion in model container [2022-11-19 07:04:32,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:32" (1/1) ... [2022-11-19 07:04:32,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:04:32,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:04:33,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-19 07:04:33,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:33,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:04:33,105 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-19 07:04:33,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:33,171 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:04:33,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33 WrapperNode [2022-11-19 07:04:33,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:33,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:33,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:04:33,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:04:33,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,242 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-11-19 07:04:33,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:33,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:04:33,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:04:33,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:04:33,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:04:33,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:04:33,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:04:33,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:04:33,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (1/1) ... [2022-11-19 07:04:33,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:33,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:33,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:04:33,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:04:33,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:04:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:04:33,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:04:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:04:33,475 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:04:33,477 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:04:33,665 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:04:33,674 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:04:33,674 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:04:33,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:33 BoogieIcfgContainer [2022-11-19 07:04:33,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:04:33,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:04:33,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:04:33,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:04:33,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:04:32" (1/3) ... [2022-11-19 07:04:33,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75098f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:33, skipping insertion in model container [2022-11-19 07:04:33,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:33" (2/3) ... [2022-11-19 07:04:33,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75098f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:33, skipping insertion in model container [2022-11-19 07:04:33,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:33" (3/3) ... [2022-11-19 07:04:33,690 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2022-11-19 07:04:33,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:04:33,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:04:33,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:04:33,822 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;@365f3e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:04:33,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:04:33,828 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) [2022-11-19 07:04:33,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:04:33,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:33,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:33,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:33,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1810339678, now seen corresponding path program 1 times [2022-11-19 07:04:33,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:33,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238958974] [2022-11-19 07:04:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:33,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:33,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:33,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:33,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:04:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:33,935 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:04:33,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:34,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:04:34,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:34,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238958974] [2022-11-19 07:04:34,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238958974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:34,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:34,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:04:34,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006655443] [2022-11-19 07:04:34,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:34,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:04:34,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:34,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:04:34,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:04:34,176 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) [2022-11-19 07:04:34,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:34,336 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2022-11-19 07:04:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:04:34,339 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 [2022-11-19 07:04:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:34,347 INFO L225 Difference]: With dead ends: 38 [2022-11-19 07:04:34,347 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:04:34,351 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 [2022-11-19 07:04:34,356 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-19 07:04:34,359 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] [2022-11-19 07:04:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:04:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-11-19 07:04:34,412 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) [2022-11-19 07:04:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-19 07:04:34,417 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2022-11-19 07:04:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:34,417 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-19 07:04:34,418 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) [2022-11-19 07:04:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-19 07:04:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:04:34,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:34,420 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:34,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:34,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:34,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash 679252028, now seen corresponding path program 1 times [2022-11-19 07:04:34,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:34,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763798667] [2022-11-19 07:04:34,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:34,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:34,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:34,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:34,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:04:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:34,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 07:04:34,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:34,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:34,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:04:34,825 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:34,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763798667] [2022-11-19 07:04:34,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763798667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:04:34,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:04:34,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:04:34,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060633019] [2022-11-19 07:04:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:04:34,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:04:34,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:04:34,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:04:34,831 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) [2022-11-19 07:04:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:34,921 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-19 07:04:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:04:34,922 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 [2022-11-19 07:04:34,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:34,923 INFO L225 Difference]: With dead ends: 31 [2022-11-19 07:04:34,923 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:04:34,924 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 [2022-11-19 07:04:34,925 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 [2022-11-19 07:04:34,926 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] [2022-11-19 07:04:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:04:34,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-11-19 07:04:34,934 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) [2022-11-19 07:04:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-19 07:04:34,935 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2022-11-19 07:04:34,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:34,936 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-19 07:04:34,936 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) [2022-11-19 07:04:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-19 07:04:34,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:04:34,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:34,937 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:34,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:35,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:35,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1082860028, now seen corresponding path program 1 times [2022-11-19 07:04:35,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:35,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125140208] [2022-11-19 07:04:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:35,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:35,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:35,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:35,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 07:04:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:35,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:04:35,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:04:35,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:04:35,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:35,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125140208] [2022-11-19 07:04:35,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125140208] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:35,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1608060744] [2022-11-19 07:04:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:35,604 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:35,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:04:35,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:04:35,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-19 07:04:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:35,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:04:35,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:04:35,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:04:35,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1608060744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:35,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884682571] [2022-11-19 07:04:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:04:35,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:35,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:35,947 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:35,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:04:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:04:36,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:04:36,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:04:36,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:04:36,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884682571] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:36,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:04:36,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 9, 7] total 12 [2022-11-19 07:04:36,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887628007] [2022-11-19 07:04:36,216 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:36,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:04:36,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:36,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:04:36,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:04:36,222 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) [2022-11-19 07:04:36,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:36,560 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-19 07:04:36,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:04:36,562 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 [2022-11-19 07:04:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:36,563 INFO L225 Difference]: With dead ends: 47 [2022-11-19 07:04:36,563 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 07:04:36,564 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 [2022-11-19 07:04:36,565 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-19 07:04:36,565 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] [2022-11-19 07:04:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 07:04:36,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-11-19 07:04:36,578 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) [2022-11-19 07:04:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-19 07:04:36,580 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 20 [2022-11-19 07:04:36,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:36,580 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-19 07:04:36,581 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) [2022-11-19 07:04:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-19 07:04:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:04:36,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:36,582 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:04:36,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:36,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:36,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-19 07:04:37,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:37,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:37,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2028547162, now seen corresponding path program 2 times [2022-11-19 07:04:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:37,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158673163] [2022-11-19 07:04:37,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:04:37,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:37,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:37,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:37,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 07:04:37,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:04:37,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:37,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:04:37,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:04:37,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:37,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:37,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158673163] [2022-11-19 07:04:37,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158673163] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:37,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1316041865] [2022-11-19 07:04:37,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:04:37,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:37,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:04:37,557 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:04:37,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-19 07:04:37,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:04:37,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:37,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 07:04:37,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:04:37,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:37,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1316041865] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:37,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556441649] [2022-11-19 07:04:37,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:04:37,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:37,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:37,862 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:37,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:04:37,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:04:37,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:37,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 07:04:37,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:04:38,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:38,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556441649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:38,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:04:38,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 9 [2022-11-19 07:04:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418944596] [2022-11-19 07:04:38,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:38,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:04:38,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:04:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:04:38,163 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) [2022-11-19 07:04:38,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:38,370 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2022-11-19 07:04:38,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:04:38,371 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 [2022-11-19 07:04:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:38,377 INFO L225 Difference]: With dead ends: 48 [2022-11-19 07:04:38,377 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 07:04:38,378 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 [2022-11-19 07:04:38,382 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 [2022-11-19 07:04:38,383 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] [2022-11-19 07:04:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 07:04:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-19 07:04:38,398 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) [2022-11-19 07:04:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-19 07:04:38,407 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 26 [2022-11-19 07:04:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:38,408 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-19 07:04:38,408 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) [2022-11-19 07:04:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-19 07:04:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 07:04:38,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:38,410 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-19 07:04:38,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:38,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-11-19 07:04:38,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:39,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:39,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:39,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -690507524, now seen corresponding path program 3 times [2022-11-19 07:04:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:39,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109834615] [2022-11-19 07:04:39,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:04:39,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:39,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:39,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:39,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 07:04:39,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:04:39,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:39,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 07:04:39,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:04:39,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:39,432 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:39,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109834615] [2022-11-19 07:04:39,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109834615] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:39,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1820183104] [2022-11-19 07:04:39,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:04:39,433 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:39,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:04:39,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:04:39,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-19 07:04:39,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:04:39,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:39,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 07:04:39,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:04:39,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:39,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1820183104] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:39,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020950250] [2022-11-19 07:04:39,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:04:39,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:39,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:39,727 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:39,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 07:04:39,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:04:39,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:39,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-19 07:04:39,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-19 07:04:39,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:40,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020950250] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:40,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:04:40,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 10] total 11 [2022-11-19 07:04:40,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286920477] [2022-11-19 07:04:40,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:40,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:04:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:40,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:04:40,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:04:40,013 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) [2022-11-19 07:04:40,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:40,131 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-19 07:04:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:04:40,132 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 [2022-11-19 07:04:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:40,133 INFO L225 Difference]: With dead ends: 52 [2022-11-19 07:04:40,133 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 07:04:40,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 119 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:04:40,134 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:40,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 72 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 64 Unchecked, 0.1s Time] [2022-11-19 07:04:40,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 07:04:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-19 07:04:40,146 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) [2022-11-19 07:04:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-19 07:04:40,147 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 39 [2022-11-19 07:04:40,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:40,148 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-19 07:04:40,148 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) [2022-11-19 07:04:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-11-19 07:04:40,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 07:04:40,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:40,150 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-19 07:04:40,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:40,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2022-11-19 07:04:40,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-19 07:04:40,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:40,761 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1442399130, now seen corresponding path program 4 times [2022-11-19 07:04:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:40,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164812195] [2022-11-19 07:04:40,762 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:04:40,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:40,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:40,764 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:40,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 07:04:40,845 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:04:40,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:40,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 07:04:40,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-19 07:04:41,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:41,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:41,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164812195] [2022-11-19 07:04:41,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164812195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:41,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1999327623] [2022-11-19 07:04:41,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:04:41,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:41,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:04:41,303 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:04:41,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-19 07:04:41,456 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:04:41,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:41,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 07:04:41,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-19 07:04:41,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:41,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1999327623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:41,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418868409] [2022-11-19 07:04:41,769 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:04:41,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:41,772 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:41,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-19 07:04:41,843 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:04:41,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:41,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-19 07:04:41,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 13 proven. 43 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-19 07:04:42,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:42,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418868409] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:04:42,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:04:42,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 10] total 11 [2022-11-19 07:04:42,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545062106] [2022-11-19 07:04:42,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:42,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:04:42,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:42,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:04:42,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:04:42,215 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 07:04:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:42,353 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2022-11-19 07:04:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:04:42,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 52 [2022-11-19 07:04:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:42,355 INFO L225 Difference]: With dead ends: 56 [2022-11-19 07:04:42,355 INFO L226 Difference]: Without dead ends: 54 [2022-11-19 07:04:42,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 155 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:04:42,356 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:42,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 55 Unchecked, 0.0s Time] [2022-11-19 07:04:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-19 07:04:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-19 07:04:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.027027027027027) internal successors, (38), 38 states have internal predecessors, (38), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 07:04:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2022-11-19 07:04:42,370 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 52 [2022-11-19 07:04:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:42,370 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2022-11-19 07:04:42,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 07:04:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2022-11-19 07:04:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-19 07:04:42,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:42,372 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-19 07:04:42,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:42,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:42,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:42,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:42,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:42,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash -962754338, now seen corresponding path program 5 times [2022-11-19 07:04:42,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:42,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375292028] [2022-11-19 07:04:42,988 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:04:42,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:42,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:42,989 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:42,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-19 07:04:43,085 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-19 07:04:43,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:43,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-19 07:04:43,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-19 07:04:43,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-19 07:04:43,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:43,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375292028] [2022-11-19 07:04:43,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375292028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:43,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [81632688] [2022-11-19 07:04:43,925 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:04:43,925 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:43,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:04:43,927 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:04:43,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-19 07:04:44,140 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-19 07:04:44,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:44,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-19 07:04:44,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-19 07:04:44,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:44,738 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-19 07:04:44,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [81632688] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:44,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762257293] [2022-11-19 07:04:44,738 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 07:04:44,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:44,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:44,743 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:44,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-19 07:04:44,828 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-19 07:04:44,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:44,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 07:04:44,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 21 proven. 54 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-19 07:04:45,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:45,213 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-19 07:04:45,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762257293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:45,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:04:45,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13, 12, 12, 10] total 21 [2022-11-19 07:04:45,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818431109] [2022-11-19 07:04:45,214 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:45,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 07:04:45,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:45,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 07:04:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:04:45,218 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand has 21 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 20 states have internal predecessors, (44), 11 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 8 states have call predecessors, (19), 10 states have call successors, (19) [2022-11-19 07:04:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:46,226 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2022-11-19 07:04:46,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 07:04:46,227 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 20 states have internal predecessors, (44), 11 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 8 states have call predecessors, (19), 10 states have call successors, (19) Word has length 59 [2022-11-19 07:04:46,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:46,228 INFO L225 Difference]: With dead ends: 88 [2022-11-19 07:04:46,228 INFO L226 Difference]: Without dead ends: 86 [2022-11-19 07:04:46,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=194, Invalid=798, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:04:46,230 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 61 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:46,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 95 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 07:04:46,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-19 07:04:46,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2022-11-19 07:04:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.018181818181818) internal successors, (56), 56 states have internal predecessors, (56), 19 states have call successors, (19), 8 states have call predecessors, (19), 8 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-19 07:04:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2022-11-19 07:04:46,253 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 59 [2022-11-19 07:04:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:46,254 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2022-11-19 07:04:46,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 20 states have internal predecessors, (44), 11 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 8 states have call predecessors, (19), 10 states have call successors, (19) [2022-11-19 07:04:46,254 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2022-11-19 07:04:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-19 07:04:46,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:46,256 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1] [2022-11-19 07:04:46,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2022-11-19 07:04:46,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:46,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:46,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:46,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1753079548, now seen corresponding path program 6 times [2022-11-19 07:04:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:46,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188911559] [2022-11-19 07:04:46,866 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:04:46,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:46,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:46,867 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:46,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 07:04:47,046 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-11-19 07:04:47,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:47,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-19 07:04:47,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-19 07:04:48,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-19 07:04:49,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:04:49,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188911559] [2022-11-19 07:04:49,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188911559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:49,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1110842777] [2022-11-19 07:04:49,239 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:04:49,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:04:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:04:49,242 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:04:49,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-19 07:04:49,523 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-11-19 07:04:49,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:49,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-19 07:04:49,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-19 07:04:50,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-19 07:04:50,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1110842777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:50,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63101344] [2022-11-19 07:04:50,474 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 07:04:50,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:50,475 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:04:50,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-19 07:04:50,630 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-11-19 07:04:50,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:04:50,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-19 07:04:50,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:04:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 35 proven. 250 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-19 07:04:51,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 35 proven. 250 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-19 07:04:52,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63101344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:52,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:04:52,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 18, 18] total 32 [2022-11-19 07:04:52,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484981724] [2022-11-19 07:04:52,087 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:52,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 07:04:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:04:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 07:04:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:04:52,089 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 32 states, 29 states have (on average 2.586206896551724) internal successors, (75), 31 states have internal predecessors, (75), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 18 states have call predecessors, (38), 20 states have call successors, (38) [2022-11-19 07:04:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:55,869 INFO L93 Difference]: Finished difference Result 147 states and 180 transitions. [2022-11-19 07:04:55,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-19 07:04:55,870 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 2.586206896551724) internal successors, (75), 31 states have internal predecessors, (75), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 18 states have call predecessors, (38), 20 states have call successors, (38) Word has length 124 [2022-11-19 07:04:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:55,871 INFO L225 Difference]: With dead ends: 147 [2022-11-19 07:04:55,871 INFO L226 Difference]: Without dead ends: 145 [2022-11-19 07:04:55,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=554, Invalid=2308, Unknown=0, NotChecked=0, Total=2862 [2022-11-19 07:04:55,874 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 119 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:55,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 216 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 07:04:55,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-19 07:04:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2022-11-19 07:04:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 91 states have (on average 1.010989010989011) internal successors, (92), 92 states have internal predecessors, (92), 41 states have call successors, (41), 9 states have call predecessors, (41), 9 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-19 07:04:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2022-11-19 07:04:55,924 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 124 [2022-11-19 07:04:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:55,925 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2022-11-19 07:04:55,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 2.586206896551724) internal successors, (75), 31 states have internal predecessors, (75), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 18 states have call predecessors, (38), 20 states have call successors, (38) [2022-11-19 07:04:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2022-11-19 07:04:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-19 07:04:55,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:04:55,929 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 28, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2022-11-19 07:04:55,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-11-19 07:04:56,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:56,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:56,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:56,532 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:04:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:04:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1810513054, now seen corresponding path program 7 times [2022-11-19 07:04:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:04:56,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635765490] [2022-11-19 07:04:56,534 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:04:56,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:56,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:04:56,535 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:04:56,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-19 07:04:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:04:56,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:04:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:04:56,934 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 07:04:56,935 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:04:56,936 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:04:56,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-19 07:04:57,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:04:57,160 INFO L444 BasicCegarLoop]: Path program histogram: [7, 1, 1] [2022-11-19 07:04:57,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:04:57,270 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,275 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,276 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,276 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,276 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,276 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,276 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,276 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,277 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:04:57 BoogieIcfgContainer [2022-11-19 07:04:57,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:04:57,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:04:57,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:04:57,314 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:04:57,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:33" (3/4) ... [2022-11-19 07:04:57,316 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 07:04:57,357 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,357 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,357 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,357 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,357 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,358 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,359 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,359 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,359 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:04:57,465 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:04:57,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:04:57,466 INFO L158 Benchmark]: Toolchain (without parser) took 24591.07ms. Allocated memory was 56.6MB in the beginning and 182.5MB in the end (delta: 125.8MB). Free memory was 35.3MB in the beginning and 128.8MB in the end (delta: -93.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-19 07:04:57,466 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:57,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.62ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 40.7MB in the end (delta: -5.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:04:57,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.21ms. Allocated memory is still 56.6MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:57,467 INFO L158 Benchmark]: Boogie Preprocessor took 51.46ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 38.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:57,467 INFO L158 Benchmark]: RCFGBuilder took 381.03ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 27.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:04:57,468 INFO L158 Benchmark]: TraceAbstraction took 23632.22ms. Allocated memory was 56.6MB in the beginning and 182.5MB in the end (delta: 125.8MB). Free memory was 26.8MB in the beginning and 143.5MB in the end (delta: -116.7MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2022-11-19 07:04:57,468 INFO L158 Benchmark]: Witness Printer took 151.49ms. Allocated memory is still 182.5MB. Free memory was 143.5MB in the beginning and 128.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:04:57,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.62ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 40.7MB in the end (delta: -5.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.21ms. Allocated memory is still 56.6MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.46ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 38.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.03ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 27.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 23632.22ms. Allocated memory was 56.6MB in the beginning and 182.5MB in the end (delta: 125.8MB). Free memory was 26.8MB in the beginning and 143.5MB in the end (delta: -116.7MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. * Witness Printer took 151.49ms. Allocated memory is still 182.5MB. Free memory was 143.5MB in the beginning and 128.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 23.4s, OverallIterations: 9, TraceHistogramMax: 29, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 648 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 119 IncrementalHoareTripleChecker+Unchecked, 538 mSDsCounter, 275 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2168 IncrementalHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 275 mSolverCounterUnsat, 110 mSDtfsCounter, 2168 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1667 GetRequests, 1507 SyntacticMatches, 10 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=8, InterpolantAutomatonStates: 102, 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, 8 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 1169 NumberOfCodeBlocks, 1151 NumberOfCodeBlocksAsserted, 93 NumberOfCheckSat, 1560 ConstructedInterpolants, 65 QuantifiedInterpolants, 21573 SizeOfPredicates, 475 NumberOfNonLiveVariables, 2812 ConjunctsInSsa, 575 ConjunctsInUnsatCore, 29 InterpolantComputations, 2 PerfectInterpolantSequences, 5042/6764 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! [2022-11-19 07:04:57,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fc0629-bba5-464d-ae43-444d268465e7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE