./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 13:53:50,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:53:50,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:53:50,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:53:50,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:53:50,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:53:50,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:53:50,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:53:50,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:53:50,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:53:50,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:53:50,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:53:50,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:53:50,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:53:50,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:53:50,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:53:50,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:53:50,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:53:50,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:53:50,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:53:50,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:53:50,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:53:50,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:53:50,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:53:50,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:53:50,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:53:50,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:53:50,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:53:50,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:53:50,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:53:50,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:53:50,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:53:50,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:53:50,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:53:50,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:53:50,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:53:50,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:53:50,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:53:50,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:53:50,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:53:50,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:53:50,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:53:50,229 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:53:50,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:53:50,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:53:50,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:53:50,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:53:50,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:53:50,231 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:53:50,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:53:50,231 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:53:50,231 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:53:50,231 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:53:50,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:53:50,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:53:50,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:53:50,232 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:53:50,232 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:53:50,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:53:50,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:53:50,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:53:50,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:53:50,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:53:50,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:53:50,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:53:50,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:53:50,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:53:50,235 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:53:50,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:53:50,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:53:50,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:53:50,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:53:50,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:53:50,236 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:53:50,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:53:50,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:53:50,237 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:53:50,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:53:50,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:53:50,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:53:50,237 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_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 [2022-11-23 13:53:50,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:53:50,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:53:50,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:53:50,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:53:50,663 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:53:50,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-23 13:53:53,938 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:53:54,144 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:53:54,145 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-23 13:53:54,151 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data/a832960d5/265e4fe93e484b68b08219129fcbdb1c/FLAGca7849110 [2022-11-23 13:53:54,167 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data/a832960d5/265e4fe93e484b68b08219129fcbdb1c [2022-11-23 13:53:54,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:53:54,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:53:54,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:53:54,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:53:54,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:53:54,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e692923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54, skipping insertion in model container [2022-11-23 13:53:54,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:53:54,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:53:54,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-23 13:53:54,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:53:54,527 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:53:54,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-23 13:53:54,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:53:54,603 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:53:54,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54 WrapperNode [2022-11-23 13:53:54,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:53:54,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:53:54,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:53:54,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:53:54,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,663 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-11-23 13:53:54,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:53:54,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:53:54,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:53:54,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:53:54,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:53:54,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:53:54,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:53:54,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:53:54,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (1/1) ... [2022-11-23 13:53:54,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:53:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:53:54,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:53:54,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:53:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:53:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:53:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 13:53:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 13:53:54,907 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:53:54,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:53:55,181 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:53:55,243 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:53:55,244 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:53:55,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:55 BoogieIcfgContainer [2022-11-23 13:53:55,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:53:55,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:53:55,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:53:55,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:53:55,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:53:54" (1/3) ... [2022-11-23 13:53:55,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40858707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:55, skipping insertion in model container [2022-11-23 13:53:55,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:54" (2/3) ... [2022-11-23 13:53:55,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40858707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:55, skipping insertion in model container [2022-11-23 13:53:55,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:55" (3/3) ... [2022-11-23 13:53:55,295 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2022-11-23 13:53:55,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:53:55,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:53:55,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:53:55,421 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;@78c236b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:53:55,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:53:55,427 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) [2022-11-23 13:53:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:53:55,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:53:55,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:53:55,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:53:55,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:53:55,449 INFO L85 PathProgramCache]: Analyzing trace with hash 2014311611, now seen corresponding path program 1 times [2022-11-23 13:53:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:53:55,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046110530] [2022-11-23 13:53:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:53:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:53:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:53:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:53:56,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:53:56,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046110530] [2022-11-23 13:53:56,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046110530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:53:56,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:53:56,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:53:56,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924098429] [2022-11-23 13:53:56,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:53:56,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:53:56,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:53:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:53:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:53:56,078 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) [2022-11-23 13:53:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:53:56,208 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2022-11-23 13:53:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:53:56,211 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 [2022-11-23 13:53:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:53:56,221 INFO L225 Difference]: With dead ends: 34 [2022-11-23 13:53:56,221 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 13:53:56,225 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 [2022-11-23 13:53:56,230 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:53:56,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:53:56,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 13:53:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-23 13:53:56,274 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) [2022-11-23 13:53:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-23 13:53:56,276 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2022-11-23 13:53:56,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:53:56,277 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-23 13:53:56,277 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) [2022-11-23 13:53:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-23 13:53:56,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 13:53:56,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:53:56,278 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:53:56,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:53:56,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:53:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:53:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1372500953, now seen corresponding path program 1 times [2022-11-23 13:53:56,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:53:56,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494957029] [2022-11-23 13:53:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:53:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:53:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:53:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:53:56,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:53:56,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494957029] [2022-11-23 13:53:56,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494957029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:53:56,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:53:56,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:53:56,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726549680] [2022-11-23 13:53:56,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:53:56,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:53:56,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:53:56,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:53:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:53:56,862 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) [2022-11-23 13:53:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:53:56,997 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-23 13:53:56,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:53:56,998 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 [2022-11-23 13:53:56,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:53:56,999 INFO L225 Difference]: With dead ends: 30 [2022-11-23 13:53:57,000 INFO L226 Difference]: Without dead ends: 28 [2022-11-23 13:53:57,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 13:53:57,001 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:53:57,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 57 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:53:57,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-23 13:53:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-23 13:53:57,010 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) [2022-11-23 13:53:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-23 13:53:57,027 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 12 [2022-11-23 13:53:57,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:53:57,028 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-23 13:53:57,028 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) [2022-11-23 13:53:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-23 13:53:57,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 13:53:57,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:53:57,029 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:53:57,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:53:57,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:53:57,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:53:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash -718003265, now seen corresponding path program 1 times [2022-11-23 13:53:57,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:53:57,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124739254] [2022-11-23 13:53:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:53:57,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:53:57,064 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:53:57,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536563233] [2022-11-23 13:53:57,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:53:57,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:53:57,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:53:57,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:53:57,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:53:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:53:57,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 13:53:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:53:57,384 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 13:53:57,384 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 13:53:57,386 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 13:53:57,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:53:57,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:53:57,592 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 13:53:57,596 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:53:57,635 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:53:57,638 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:53:57,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:53:57 BoogieIcfgContainer [2022-11-23 13:53:57,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:53:57,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:53:57,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:53:57,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:53:57,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:55" (3/4) ... [2022-11-23 13:53:57,662 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 13:53:57,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:53:57,664 INFO L158 Benchmark]: Toolchain (without parser) took 3490.70ms. Allocated memory was 134.2MB in the beginning and 209.7MB in the end (delta: 75.5MB). Free memory was 69.0MB in the beginning and 143.2MB in the end (delta: -74.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-23 13:53:57,665 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 109.0MB in the beginning and 108.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:53:57,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.17ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 68.8MB in the beginning and 140.7MB in the end (delta: -71.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-11-23 13:53:57,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.69ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 139.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:53:57,677 INFO L158 Benchmark]: Boogie Preprocessor took 45.60ms. Allocated memory is still 174.1MB. Free memory was 139.3MB in the beginning and 138.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:53:57,678 INFO L158 Benchmark]: RCFGBuilder took 535.66ms. Allocated memory is still 174.1MB. Free memory was 138.0MB in the beginning and 142.1MB in the end (delta: -4.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 13:53:57,680 INFO L158 Benchmark]: TraceAbstraction took 2401.54ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.1MB in the beginning and 144.2MB in the end (delta: -2.1MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-11-23 13:53:57,682 INFO L158 Benchmark]: Witness Printer took 9.75ms. Allocated memory is still 209.7MB. Free memory was 144.2MB in the beginning and 143.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:53:57,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 109.0MB in the beginning and 108.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.17ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 68.8MB in the beginning and 140.7MB in the end (delta: -71.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.69ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 139.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.60ms. Allocated memory is still 174.1MB. Free memory was 139.3MB in the beginning and 138.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.66ms. Allocated memory is still 174.1MB. Free memory was 138.0MB in the beginning and 142.1MB in the end (delta: -4.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2401.54ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.1MB in the beginning and 144.2MB in the end (delta: -2.1MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Witness Printer took 9.75ms. Allocated memory is still 209.7MB. Free memory was 144.2MB in the beginning and 143.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=0] [L28] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L28] reach_error() VAL [cond=0, unknown-#in~cond-unknown=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: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 24 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 0.9s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 13:53:57,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 13:54:00,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:54:00,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:54:00,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:54:00,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:54:00,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:54:00,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:54:00,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:54:00,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:54:00,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:54:00,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:54:00,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:54:00,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:54:00,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:54:00,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:54:00,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:54:00,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:54:00,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:54:00,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:54:00,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:54:00,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:54:00,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:54:00,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:54:00,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:54:00,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:54:00,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:54:00,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:54:00,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:54:00,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:54:00,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:54:00,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:54:00,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:54:00,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:54:00,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:54:00,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:54:00,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:54:00,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:54:00,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:54:00,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:54:00,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:54:00,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:54:00,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 13:54:00,826 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:54:00,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:54:00,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:54:00,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:54:00,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:54:00,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:54:00,830 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:54:00,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:54:00,830 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:54:00,831 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:54:00,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:54:00,832 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:54:00,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:54:00,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:54:00,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:54:00,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:54:00,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:54:00,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 13:54:00,835 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 13:54:00,835 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 13:54:00,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:54:00,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:54:00,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:54:00,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:54:00,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 13:54:00,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:54:00,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:54:00,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:54:00,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:54:00,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:54:00,837 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 13:54:00,838 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:00,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:54:00,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:54:00,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 13:54:00,839 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_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01e407ff37f0e05cc0af0c9add6c9f6be76650fc51d4c59f5df1e4bebb9e67d5 [2022-11-23 13:54:01,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:54:01,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:54:01,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:54:01,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:54:01,292 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:54:01,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-23 13:54:04,432 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:54:04,633 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:54:04,634 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2022-11-23 13:54:04,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data/d95dc1510/a7a61f67d4b64aad944b53c133246e08/FLAG1d7535b4b [2022-11-23 13:54:04,660 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/data/d95dc1510/a7a61f67d4b64aad944b53c133246e08 [2022-11-23 13:54:04,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:54:04,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:54:04,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:54:04,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:54:04,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:54:04,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:04" (1/1) ... [2022-11-23 13:54:04,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe19957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:04, skipping insertion in model container [2022-11-23 13:54:04,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:04" (1/1) ... [2022-11-23 13:54:04,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:54:04,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:54:04,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-23 13:54:04,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:54:04,995 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:54:05,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1292,1305] [2022-11-23 13:54:05,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:54:05,071 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:54:05,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05 WrapperNode [2022-11-23 13:54:05,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:54:05,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:54:05,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:54:05,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:54:05,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,125 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-11-23 13:54:05,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:54:05,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:54:05,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:54:05,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:54:05,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:54:05,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:54:05,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:54:05,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:54:05,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:54:05,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:05,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:54:05,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:54:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:54:05,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:54:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 13:54:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 13:54:05,398 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:54:05,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:54:05,568 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:54:05,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:54:05,576 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:54:05,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:05 BoogieIcfgContainer [2022-11-23 13:54:05,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:54:05,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:54:05,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:54:05,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:54:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:54:04" (1/3) ... [2022-11-23 13:54:05,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43373c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:05, skipping insertion in model container [2022-11-23 13:54:05,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (2/3) ... [2022-11-23 13:54:05,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43373c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:05, skipping insertion in model container [2022-11-23 13:54:05,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:05" (3/3) ... [2022-11-23 13:54:05,602 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2022-11-23 13:54:05,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:54:05,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:54:05,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:54:05,732 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;@6f59f2d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:54:05,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:54:05,737 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) [2022-11-23 13:54:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 13:54:05,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:05,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:05,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1810339678, now seen corresponding path program 1 times [2022-11-23 13:54:05,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:05,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044112535] [2022-11-23 13:54:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:05,787 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 [2022-11-23 13:54:05,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:05,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:05,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:05,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 13:54:05,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:06,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:54:06,144 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:06,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044112535] [2022-11-23 13:54:06,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044112535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:06,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:06,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:54:06,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481127747] [2022-11-23 13:54:06,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:06,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:54:06,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:54:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:54:06,210 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) [2022-11-23 13:54:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:06,353 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2022-11-23 13:54:06,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:54:06,356 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 [2022-11-23 13:54:06,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:06,364 INFO L225 Difference]: With dead ends: 38 [2022-11-23 13:54:06,365 INFO L226 Difference]: Without dead ends: 23 [2022-11-23 13:54:06,368 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 [2022-11-23 13:54:06,372 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:06,374 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] [2022-11-23 13:54:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-23 13:54:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-11-23 13:54:06,413 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) [2022-11-23 13:54:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-23 13:54:06,416 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2022-11-23 13:54:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:06,417 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-23 13:54:06,417 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) [2022-11-23 13:54:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-23 13:54:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 13:54:06,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:06,419 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:06,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:06,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:06,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 679252028, now seen corresponding path program 1 times [2022-11-23 13:54:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:06,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59436161] [2022-11-23 13:54:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:06,634 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 [2022-11-23 13:54:06,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:06,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:06,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:06,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 13:54:06,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:54:06,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:54:06,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:06,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59436161] [2022-11-23 13:54:06,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59436161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:06,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:06,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:54:06,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219989478] [2022-11-23 13:54:06,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:06,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:54:06,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:54:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:54:06,891 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) [2022-11-23 13:54:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:07,006 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-23 13:54:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:54:07,007 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 [2022-11-23 13:54:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:07,008 INFO L225 Difference]: With dead ends: 31 [2022-11-23 13:54:07,009 INFO L226 Difference]: Without dead ends: 29 [2022-11-23 13:54:07,010 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 [2022-11-23 13:54:07,012 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-23 13:54:07,014 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] [2022-11-23 13:54:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-23 13:54:07,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-11-23 13:54:07,024 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) [2022-11-23 13:54:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-23 13:54:07,027 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2022-11-23 13:54:07,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:07,028 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-23 13:54:07,028 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) [2022-11-23 13:54:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-23 13:54:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 13:54:07,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:07,031 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:07,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:07,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:07,239 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1082860028, now seen corresponding path program 1 times [2022-11-23 13:54:07,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:07,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128731699] [2022-11-23 13:54:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:07,242 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 [2022-11-23 13:54:07,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:07,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:07,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:07,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 13:54:07,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:54:07,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:07,676 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:54:07,677 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:07,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128731699] [2022-11-23 13:54:07,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128731699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:07,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1338393346] [2022-11-23 13:54:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:07,678 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:07,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:54:07,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:54:07,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-23 13:54:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:07,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 13:54:07,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:54:07,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:54:08,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1338393346] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:08,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319959468] [2022-11-23 13:54:08,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:08,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:54:08,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:08,022 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:54:08,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 13:54:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:08,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 13:54:08,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:08,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 13:54:08,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:54:08,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319959468] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:08,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 13:54:08,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 9, 7] total 12 [2022-11-23 13:54:08,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855656929] [2022-11-23 13:54:08,371 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 13:54:08,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 13:54:08,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:08,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 13:54:08,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-23 13:54:08,373 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) [2022-11-23 13:54:08,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:08,805 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-23 13:54:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 13:54:08,806 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 [2022-11-23 13:54:08,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:08,808 INFO L225 Difference]: With dead ends: 47 [2022-11-23 13:54:08,808 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 13:54:08,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-23 13:54:08,810 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:08,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 40 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 13:54:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 13:54:08,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-11-23 13:54:08,826 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) [2022-11-23 13:54:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-23 13:54:08,828 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 20 [2022-11-23 13:54:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:08,828 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-23 13:54:08,829 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) [2022-11-23 13:54:08,829 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-23 13:54:08,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 13:54:08,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:08,830 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 13:54:08,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:09,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:09,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:09,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:54:09,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2028547162, now seen corresponding path program 2 times [2022-11-23 13:54:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:09,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959656744] [2022-11-23 13:54:09,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 13:54:09,447 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 [2022-11-23 13:54:09,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:09,450 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:09,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:09,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 13:54:09,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:09,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 13:54:09,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:54:09,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:09,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:09,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959656744] [2022-11-23 13:54:09,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959656744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:54:09,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1760444913] [2022-11-23 13:54:09,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 13:54:09,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:09,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:54:09,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:54:09,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-23 13:54:09,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 13:54:09,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:09,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 13:54:09,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:54:10,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:10,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1760444913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:54:10,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624567365] [2022-11-23 13:54:10,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 13:54:10,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:54:10,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:10,155 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:54:10,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 13:54:10,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 13:54:10,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:10,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 13:54:10,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 13:54:10,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:10,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624567365] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:54:10,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:54:10,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 9 [2022-11-23 13:54:10,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613501120] [2022-11-23 13:54:10,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:54:10,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 13:54:10,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:10,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 13:54:10,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-23 13:54:10,453 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) [2022-11-23 13:54:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:10,702 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2022-11-23 13:54:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 13:54:10,704 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 [2022-11-23 13:54:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:10,707 INFO L225 Difference]: With dead ends: 48 [2022-11-23 13:54:10,707 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 13:54:10,707 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 [2022-11-23 13:54:10,708 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:10,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:54:10,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 13:54:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 13:54:10,738 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) [2022-11-23 13:54:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-23 13:54:10,751 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 26 [2022-11-23 13:54:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:10,752 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-23 13:54:10,752 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) [2022-11-23 13:54:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-23 13:54:10,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 13:54:10,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:10,755 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-23 13:54:10,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-11-23 13:54:10,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:11,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:11,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:11,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:11,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:11,359 INFO L85 PathProgramCache]: Analyzing trace with hash -690507524, now seen corresponding path program 3 times [2022-11-23 13:54:11,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:11,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681317705] [2022-11-23 13:54:11,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 13:54:11,360 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 [2022-11-23 13:54:11,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:11,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:11,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:11,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 13:54:11,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:11,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 13:54:11,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:11,681 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 13:54:11,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:11,768 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:11,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681317705] [2022-11-23 13:54:11,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681317705] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:54:11,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [197510606] [2022-11-23 13:54:11,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 13:54:11,769 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:11,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:54:11,770 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:54:11,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-23 13:54:11,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 13:54:11,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:11,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 13:54:11,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:12,030 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-23 13:54:12,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:12,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [197510606] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:54:12,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570250061] [2022-11-23 13:54:12,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 13:54:12,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:54:12,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:12,084 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:54:12,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 13:54:12,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 13:54:12,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:12,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 13:54:12,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 13:54:12,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:12,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570250061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:54:12,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:54:12,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 10] total 11 [2022-11-23 13:54:12,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553491675] [2022-11-23 13:54:12,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:54:12,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 13:54:12,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:12,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 13:54:12,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-23 13:54:12,398 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) [2022-11-23 13:54:13,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:13,200 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-23 13:54:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 13:54:13,201 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 [2022-11-23 13:54:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:13,203 INFO L225 Difference]: With dead ends: 52 [2022-11-23 13:54:13,203 INFO L226 Difference]: Without dead ends: 50 [2022-11-23 13:54:13,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-23 13:54:13,205 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:13,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 69 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 13:54:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-23 13:54:13,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-23 13:54:13,221 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) [2022-11-23 13:54:13,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-23 13:54:13,222 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 39 [2022-11-23 13:54:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:13,223 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-23 13:54:13,223 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) [2022-11-23 13:54:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-11-23 13:54:13,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-23 13:54:13,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:13,225 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-23 13:54:13,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:13,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2022-11-23 13:54:13,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:13,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:13,833 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:13,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:13,834 INFO L85 PathProgramCache]: Analyzing trace with hash -962754338, now seen corresponding path program 4 times [2022-11-23 13:54:13,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:13,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161800023] [2022-11-23 13:54:13,835 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 13:54:13,835 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 [2022-11-23 13:54:13,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:13,837 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:13,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:13,926 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 13:54:13,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:13,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 13:54:13,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 13:54:14,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 13:54:14,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:14,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161800023] [2022-11-23 13:54:14,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161800023] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1713428072] [2022-11-23 13:54:14,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 13:54:14,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:14,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:54:14,786 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:54:14,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-23 13:54:14,956 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 13:54:14,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:14,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-23 13:54:14,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 13:54:15,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 13:54:15,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1713428072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25940923] [2022-11-23 13:54:15,673 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 13:54:15,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:54:15,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:15,675 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:54:15,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 13:54:15,769 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 13:54:15,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:15,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 13:54:15,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:16,109 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-23 13:54:16,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:16,299 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 13:54:16,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25940923] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:16,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 13:54:16,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11, 10, 12, 10] total 21 [2022-11-23 13:54:16,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885105083] [2022-11-23 13:54:16,300 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 13:54:16,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 13:54:16,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:16,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 13:54:16,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-11-23 13:54:16,303 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 12 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-23 13:54:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:17,578 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2022-11-23 13:54:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 13:54:17,579 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 12 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 59 [2022-11-23 13:54:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:17,580 INFO L225 Difference]: With dead ends: 84 [2022-11-23 13:54:17,581 INFO L226 Difference]: Without dead ends: 82 [2022-11-23 13:54:17,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2022-11-23 13:54:17,582 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 51 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:17,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 96 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 13:54:17,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-23 13:54:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-11-23 13:54:17,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 53 states have internal predecessors, (53), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-23 13:54:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2022-11-23 13:54:17,622 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 59 [2022-11-23 13:54:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:17,623 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2022-11-23 13:54:17,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 12 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-23 13:54:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2022-11-23 13:54:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-23 13:54:17,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:17,632 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1] [2022-11-23 13:54:17,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:17,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:18,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:18,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:18,241 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:18,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1753079548, now seen corresponding path program 5 times [2022-11-23 13:54:18,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:18,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672421884] [2022-11-23 13:54:18,243 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 13:54:18,243 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 [2022-11-23 13:54:18,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:18,244 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:18,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:18,450 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-11-23 13:54:18,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:18,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-23 13:54:18,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:19,664 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-23 13:54:19,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-23 13:54:21,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:54:21,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672421884] [2022-11-23 13:54:21,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672421884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:21,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1082548945] [2022-11-23 13:54:21,118 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 13:54:21,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:21,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:54:21,120 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:54:21,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-23 13:54:21,502 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-11-23 13:54:21,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:21,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-23 13:54:21,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-23 13:54:22,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-23 13:54:23,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1082548945] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:23,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801028740] [2022-11-23 13:54:23,029 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 13:54:23,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:54:23,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:23,035 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:54:23,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 13:54:23,227 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-11-23 13:54:23,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:54:23,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-23 13:54:23,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:54:23,918 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2022-11-23 13:54:23,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:54:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-11-23 13:54:24,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801028740] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:54:24,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 13:54:24,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 18, 17, 17, 15] total 31 [2022-11-23 13:54:24,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200254725] [2022-11-23 13:54:24,302 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 13:54:24,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-23 13:54:24,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:54:24,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-23 13:54:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2022-11-23 13:54:24,314 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 31 states, 28 states have (on average 2.642857142857143) internal successors, (74), 30 states have internal predecessors, (74), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 18 states have call predecessors, (39), 20 states have call successors, (39) [2022-11-23 13:54:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:54:28,368 INFO L93 Difference]: Finished difference Result 143 states and 177 transitions. [2022-11-23 13:54:28,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-23 13:54:28,369 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 2.642857142857143) internal successors, (74), 30 states have internal predecessors, (74), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 18 states have call predecessors, (39), 20 states have call successors, (39) Word has length 124 [2022-11-23 13:54:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:54:28,371 INFO L225 Difference]: With dead ends: 143 [2022-11-23 13:54:28,371 INFO L226 Difference]: Without dead ends: 141 [2022-11-23 13:54:28,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=551, Invalid=2311, Unknown=0, NotChecked=0, Total=2862 [2022-11-23 13:54:28,374 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:54:28,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 189 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 13:54:28,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-23 13:54:28,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2022-11-23 13:54:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.0113636363636365) internal successors, (89), 89 states have internal predecessors, (89), 41 states have call successors, (41), 8 states have call predecessors, (41), 8 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-23 13:54:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2022-11-23 13:54:28,476 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 124 [2022-11-23 13:54:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:54:28,480 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2022-11-23 13:54:28,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 2.642857142857143) internal successors, (74), 30 states have internal predecessors, (74), 21 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 18 states have call predecessors, (39), 20 states have call successors, (39) [2022-11-23 13:54:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2022-11-23 13:54:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-23 13:54:28,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:28,488 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 28, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2022-11-23 13:54:28,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:28,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:28,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-23 13:54:29,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 13:54:29,099 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1810513054, now seen corresponding path program 6 times [2022-11-23 13:54:29,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:54:29,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905479541] [2022-11-23 13:54:29,101 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 13:54:29,101 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 [2022-11-23 13:54:29,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:54:29,102 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 13:54:29,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:29,390 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2022-11-23 13:54:29,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-23 13:54:29,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 13:54:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:54:29,655 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 13:54:29,655 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 13:54:29,657 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 13:54:29,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:29,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 13:54:29,881 INFO L444 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2022-11-23 13:54:29,886 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:54:30,014 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,014 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,014 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,014 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,014 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,015 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,016 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,016 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,016 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:54:30 BoogieIcfgContainer [2022-11-23 13:54:30,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:54:30,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:54:30,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:54:30,068 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:54:30,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:05" (3/4) ... [2022-11-23 13:54:30,071 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 13:54:30,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,137 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,138 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,139 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 13:54:30,321 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:54:30,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:54:30,323 INFO L158 Benchmark]: Toolchain (without parser) took 25658.30ms. Allocated memory was 65.0MB in the beginning and 188.7MB in the end (delta: 123.7MB). Free memory was 36.3MB in the beginning and 156.7MB in the end (delta: -120.4MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,323 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:54:30,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.55ms. Allocated memory is still 65.0MB. Free memory was 36.1MB in the beginning and 25.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.21ms. Allocated memory is still 65.0MB. Free memory was 25.3MB in the beginning and 23.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,324 INFO L158 Benchmark]: Boogie Preprocessor took 72.58ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 23.5MB in the beginning and 69.0MB in the end (delta: -45.5MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,325 INFO L158 Benchmark]: RCFGBuilder took 377.41ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 58.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,326 INFO L158 Benchmark]: TraceAbstraction took 24485.97ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 57.9MB in the beginning and 89.4MB in the end (delta: -31.5MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,326 INFO L158 Benchmark]: Witness Printer took 254.89ms. Allocated memory is still 188.7MB. Free memory was 89.4MB in the beginning and 156.7MB in the end (delta: -67.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 13:54:30,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.55ms. Allocated memory is still 65.0MB. Free memory was 36.1MB in the beginning and 25.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.21ms. Allocated memory is still 65.0MB. Free memory was 25.3MB in the beginning and 23.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.58ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 23.5MB in the beginning and 69.0MB in the end (delta: -45.5MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * RCFGBuilder took 377.41ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 58.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 24485.97ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 57.9MB in the beginning and 89.4MB in the end (delta: -31.5MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Witness Printer took 254.89ms. Allocated memory is still 188.7MB. Free memory was 89.4MB in the beginning and 156.7MB in the end (delta: -67.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=1] [L28] COND FALSE !(!(cond)) VAL [cond=1, unknown-#in~cond-unknown=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 [unknown-#in~cond-unknown=0] [L28] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L28] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.2s, OverallIterations: 8, TraceHistogramMax: 29, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 549 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 452 mSDsCounter, 245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2056 IncrementalHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 245 mSolverCounterUnsat, 97 mSDtfsCounter, 2056 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1496 GetRequests, 1353 SyntacticMatches, 4 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=7, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 1013 NumberOfCodeBlocks, 995 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1407 ConstructedInterpolants, 28 QuantifiedInterpolants, 20755 SizeOfPredicates, 414 NumberOfNonLiveVariables, 2359 ConjunctsInSsa, 503 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 4738/6389 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 13:54:30,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56354f02-5736-41b2-9a84-67c775ba90b1/bin/utaipan-Q6hlc19bkW/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