./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0397e1839c0d761fe403b06501425acc9e7bddc9f103e53ae177509d148aabf4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:40:04,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:40:04,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:40:04,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:40:04,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:40:04,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:40:04,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:40:04,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:40:04,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:40:04,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:40:04,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:40:04,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:40:04,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:40:04,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:40:04,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:40:04,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:40:04,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:40:04,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:40:04,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:40:04,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:40:04,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:40:04,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:40:04,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:40:04,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:40:04,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:40:04,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:40:04,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:40:04,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:40:04,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:40:04,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:40:04,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:40:04,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:40:04,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:40:04,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:40:04,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:40:04,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:40:04,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:40:04,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:40:04,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:40:04,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:40:04,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:40:04,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:40:04,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:40:04,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:40:04,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:40:04,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:40:04,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:40:04,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:40:04,969 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:40:04,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:40:04,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:40:04,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:40:04,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:40:04,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:40:04,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:40:04,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:40:04,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:40:04,970 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:40:04,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:40:04,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:40:04,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:40:04,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:40:04,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:40:04,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:40:04,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:40:04,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:40:04,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:40:04,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:40:04,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:40:04,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:40:04,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:40:04,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:40:04,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:40:04,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:40:04,974 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_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0397e1839c0d761fe403b06501425acc9e7bddc9f103e53ae177509d148aabf4 [2021-11-22 14:40:05,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:40:05,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:40:05,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:40:05,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:40:05,263 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:40:05,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/loops-crafted-1/nested3-2.c [2021-11-22 14:40:05,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/data/5d0942ae4/393e1ece1af04b6cad178c98d30b7afb/FLAG6fb21055b [2021-11-22 14:40:05,766 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:40:05,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/sv-benchmarks/c/loops-crafted-1/nested3-2.c [2021-11-22 14:40:05,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/data/5d0942ae4/393e1ece1af04b6cad178c98d30b7afb/FLAG6fb21055b [2021-11-22 14:40:06,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/data/5d0942ae4/393e1ece1af04b6cad178c98d30b7afb [2021-11-22 14:40:06,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:40:06,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:40:06,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:40:06,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:40:06,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:40:06,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec6d539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06, skipping insertion in model container [2021-11-22 14:40:06,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:40:06,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:40:06,375 WARN L230 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_7202fae6-1a56-4126-acd6-d32b03b42498/sv-benchmarks/c/loops-crafted-1/nested3-2.c[321,334] [2021-11-22 14:40:06,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:40:06,392 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:40:06,402 WARN L230 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_7202fae6-1a56-4126-acd6-d32b03b42498/sv-benchmarks/c/loops-crafted-1/nested3-2.c[321,334] [2021-11-22 14:40:06,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:40:06,417 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:40:06,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06 WrapperNode [2021-11-22 14:40:06,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:40:06,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:40:06,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:40:06,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:40:06,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,453 INFO L137 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2021-11-22 14:40:06,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:40:06,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:40:06,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:40:06,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:40:06,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:40:06,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:40:06,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:40:06,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:40:06,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (1/1) ... [2021-11-22 14:40:06,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:40:06,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:06,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:40:06,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:40:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:40:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:40:06,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:40:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:40:06,623 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:40:06,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:40:06,742 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:40:06,748 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:40:06,749 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-22 14:40:06,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:06 BoogieIcfgContainer [2021-11-22 14:40:06,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:40:06,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:40:06,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:40:06,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:40:06,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:40:06" (1/3) ... [2021-11-22 14:40:06,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219cf549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:40:06, skipping insertion in model container [2021-11-22 14:40:06,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:06" (2/3) ... [2021-11-22 14:40:06,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219cf549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:40:06, skipping insertion in model container [2021-11-22 14:40:06,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:06" (3/3) ... [2021-11-22 14:40:06,763 INFO L111 eAbstractionObserver]: Analyzing ICFG nested3-2.c [2021-11-22 14:40:06,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:40:06,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-22 14:40:06,817 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:40:06,825 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:40:06,825 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-22 14:40:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.631578947368421) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 14:40:06,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:06,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 14:40:06,846 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:06,852 INFO L85 PathProgramCache]: Analyzing trace with hash 889681499, now seen corresponding path program 1 times [2021-11-22 14:40:06,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:06,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934273075] [2021-11-22 14:40:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:06,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:07,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:07,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934273075] [2021-11-22 14:40:07,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934273075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:40:07,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:40:07,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:40:07,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407025990] [2021-11-22 14:40:07,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:40:07,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:40:07,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:40:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:40:07,101 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.631578947368421) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:07,153 INFO L93 Difference]: Finished difference Result 57 states and 81 transitions. [2021-11-22 14:40:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:40:07,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 14:40:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:07,165 INFO L225 Difference]: With dead ends: 57 [2021-11-22 14:40:07,165 INFO L226 Difference]: Without dead ends: 32 [2021-11-22 14:40:07,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:40:07,175 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:07,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 43 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:40:07,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-22 14:40:07,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 20. [2021-11-22 14:40:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-11-22 14:40:07,216 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 6 [2021-11-22 14:40:07,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:07,216 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-22 14:40:07,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,217 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-11-22 14:40:07,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 14:40:07,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:07,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:07,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:40:07,219 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:07,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:07,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1810811368, now seen corresponding path program 1 times [2021-11-22 14:40:07,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:07,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816558866] [2021-11-22 14:40:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:07,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:07,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:07,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816558866] [2021-11-22 14:40:07,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816558866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:40:07,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:40:07,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:40:07,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008252826] [2021-11-22 14:40:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:40:07,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:40:07,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:07,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:40:07,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:40:07,317 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:07,335 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2021-11-22 14:40:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:40:07,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-22 14:40:07,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:07,344 INFO L225 Difference]: With dead ends: 44 [2021-11-22 14:40:07,344 INFO L226 Difference]: Without dead ends: 27 [2021-11-22 14:40:07,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:40:07,346 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:07,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:40:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-22 14:40:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2021-11-22 14:40:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-22 14:40:07,352 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 7 [2021-11-22 14:40:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:07,353 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-22 14:40:07,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-22 14:40:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 14:40:07,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:07,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:07,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:40:07,355 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash 301781204, now seen corresponding path program 1 times [2021-11-22 14:40:07,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:07,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041926807] [2021-11-22 14:40:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:07,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:07,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:07,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041926807] [2021-11-22 14:40:07,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041926807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:40:07,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:40:07,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:40:07,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271996720] [2021-11-22 14:40:07,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:40:07,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:40:07,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:07,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:40:07,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:40:07,408 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:07,420 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-11-22 14:40:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:40:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-22 14:40:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:07,422 INFO L225 Difference]: With dead ends: 41 [2021-11-22 14:40:07,422 INFO L226 Difference]: Without dead ends: 23 [2021-11-22 14:40:07,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:40:07,424 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:07,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:40:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-22 14:40:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-22 14:40:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.263157894736842) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-11-22 14:40:07,430 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2021-11-22 14:40:07,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:07,431 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-11-22 14:40:07,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-11-22 14:40:07,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 14:40:07,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:07,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:07,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:40:07,433 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:07,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:07,434 INFO L85 PathProgramCache]: Analyzing trace with hash 766948121, now seen corresponding path program 1 times [2021-11-22 14:40:07,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:07,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767545833] [2021-11-22 14:40:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:07,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:07,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:07,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767545833] [2021-11-22 14:40:07,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767545833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:40:07,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358312562] [2021-11-22 14:40:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:07,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:07,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:07,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:40:07,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:40:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:07,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:40:07,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:40:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:07,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:40:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:07,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358312562] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:40:07,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:40:07,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-22 14:40:07,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541601971] [2021-11-22 14:40:07,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:40:07,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 14:40:07,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:07,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 14:40:07,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-22 14:40:07,684 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:07,737 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2021-11-22 14:40:07,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:40:07,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 14:40:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:07,741 INFO L225 Difference]: With dead ends: 45 [2021-11-22 14:40:07,742 INFO L226 Difference]: Without dead ends: 26 [2021-11-22 14:40:07,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:40:07,744 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:07,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:40:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-22 14:40:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-11-22 14:40:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-11-22 14:40:07,752 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2021-11-22 14:40:07,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:07,753 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-11-22 14:40:07,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-11-22 14:40:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 14:40:07,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:07,754 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:07,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:40:07,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:07,963 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:07,964 INFO L85 PathProgramCache]: Analyzing trace with hash 579189268, now seen corresponding path program 2 times [2021-11-22 14:40:07,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:07,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992608669] [2021-11-22 14:40:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:07,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:08,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:08,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992608669] [2021-11-22 14:40:08,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992608669] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:40:08,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470351006] [2021-11-22 14:40:08,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:40:08,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:08,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:08,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:40:08,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 14:40:08,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 14:40:08,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:40:08,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 14:40:08,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:40:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:08,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:40:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 14:40:08,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470351006] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:40:08,544 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:40:08,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 13 [2021-11-22 14:40:08,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21940206] [2021-11-22 14:40:08,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:40:08,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 14:40:08,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:08,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 14:40:08,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:40:08,554 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:08,974 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2021-11-22 14:40:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 14:40:08,975 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 14:40:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:08,978 INFO L225 Difference]: With dead ends: 114 [2021-11-22 14:40:08,978 INFO L226 Difference]: Without dead ends: 92 [2021-11-22 14:40:08,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2021-11-22 14:40:08,981 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 75 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:08,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 506 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:40:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-22 14:40:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 31. [2021-11-22 14:40:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-11-22 14:40:08,991 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 12 [2021-11-22 14:40:08,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:08,992 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-11-22 14:40:08,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-11-22 14:40:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 14:40:08,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:08,993 INFO L514 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:09,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:40:09,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:09,216 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash 776663513, now seen corresponding path program 3 times [2021-11-22 14:40:09,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:09,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813009073] [2021-11-22 14:40:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:09,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:09,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:09,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813009073] [2021-11-22 14:40:09,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813009073] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:40:09,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574235774] [2021-11-22 14:40:09,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 14:40:09,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:09,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:09,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:40:09,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 14:40:09,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-22 14:40:09,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:40:09,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 14:40:09,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:40:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:09,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:40:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:09,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574235774] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:40:09,703 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:40:09,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-11-22 14:40:09,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662659061] [2021-11-22 14:40:09,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:40:09,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 14:40:09,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:09,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 14:40:09,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:40:09,708 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:10,323 INFO L93 Difference]: Finished difference Result 67 states and 84 transitions. [2021-11-22 14:40:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 14:40:10,325 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-22 14:40:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:10,326 INFO L225 Difference]: With dead ends: 67 [2021-11-22 14:40:10,326 INFO L226 Difference]: Without dead ends: 39 [2021-11-22 14:40:10,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=150, Invalid=230, Unknown=0, NotChecked=0, Total=380 [2021-11-22 14:40:10,328 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:10,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:40:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-22 14:40:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-11-22 14:40:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-11-22 14:40:10,343 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 13 [2021-11-22 14:40:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:10,343 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-11-22 14:40:10,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-11-22 14:40:10,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 14:40:10,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:10,345 INFO L514 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:10,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:40:10,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:10,566 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:10,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:10,566 INFO L85 PathProgramCache]: Analyzing trace with hash 736841561, now seen corresponding path program 4 times [2021-11-22 14:40:10,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:10,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484057631] [2021-11-22 14:40:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:10,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:10,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:10,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484057631] [2021-11-22 14:40:10,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484057631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:40:10,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645033819] [2021-11-22 14:40:10,885 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 14:40:10,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:10,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:10,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:40:10,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 14:40:10,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 14:40:10,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:40:10,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 14:40:10,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:40:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:11,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:40:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:11,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645033819] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:40:11,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:40:11,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2021-11-22 14:40:11,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402013424] [2021-11-22 14:40:11,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:40:11,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-22 14:40:11,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:11,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-22 14:40:11,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=647, Unknown=0, NotChecked=0, Total=930 [2021-11-22 14:40:11,568 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:40:31,374 INFO L93 Difference]: Finished difference Result 90 states and 116 transitions. [2021-11-22 14:40:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 14:40:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-22 14:40:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:40:31,376 INFO L225 Difference]: With dead ends: 90 [2021-11-22 14:40:31,376 INFO L226 Difference]: Without dead ends: 55 [2021-11-22 14:40:31,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=685, Invalid=1206, Unknown=1, NotChecked=0, Total=1892 [2021-11-22 14:40:31,378 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:40:31,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 272 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:40:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-22 14:40:31,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-11-22 14:40:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-11-22 14:40:31,388 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 21 [2021-11-22 14:40:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:40:31,389 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-11-22 14:40:31,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-11-22 14:40:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 14:40:31,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:40:31,390 INFO L514 BasicCegarLoop]: trace histogram [29, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:40:31,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:40:31,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:31,591 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:40:31,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:40:31,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1347127897, now seen corresponding path program 5 times [2021-11-22 14:40:31,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:40:31,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718617944] [2021-11-22 14:40:31,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:40:31,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:40:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:40:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:32,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:40:32,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718617944] [2021-11-22 14:40:32,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718617944] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:40:32,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941333654] [2021-11-22 14:40:32,385 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 14:40:32,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:40:32,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:40:32,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:40:32,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 14:40:34,413 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-11-22 14:40:34,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:40:34,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-22 14:40:34,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:40:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:34,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:40:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:40:36,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941333654] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:40:36,520 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:40:36,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2021-11-22 14:40:36,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373753179] [2021-11-22 14:40:36,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:40:36,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-22 14:40:36,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:40:36,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-22 14:40:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1083, Invalid=2823, Unknown=0, NotChecked=0, Total=3906 [2021-11-22 14:40:36,525 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 63 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 63 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:40:56,931 WARN L227 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 122 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:47:36,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:47:36,611 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2021-11-22 14:47:36,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 14:47:36,612 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 63 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-22 14:47:36,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:47:36,613 INFO L225 Difference]: With dead ends: 138 [2021-11-22 14:47:36,613 INFO L226 Difference]: Without dead ends: 87 [2021-11-22 14:47:36,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 421.7s TimeCoverageRelationStatistics Valid=2885, Invalid=5457, Unknown=30, NotChecked=0, Total=8372 [2021-11-22 14:47:36,618 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 14:47:36,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 545 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 14:47:36,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-22 14:47:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-11-22 14:47:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:47:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-11-22 14:47:36,631 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 37 [2021-11-22 14:47:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:47:36,632 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-11-22 14:47:36,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 63 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:47:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-11-22 14:47:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 14:47:36,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:47:36,635 INFO L514 BasicCegarLoop]: trace histogram [61, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:47:36,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 14:47:36,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:47:36,839 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:47:36,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:47:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash 931790937, now seen corresponding path program 6 times [2021-11-22 14:47:36,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:47:36,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358173689] [2021-11-22 14:47:36,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:47:36,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:47:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:47:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:47:39,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:47:39,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358173689] [2021-11-22 14:47:39,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358173689] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:47:39,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411141165] [2021-11-22 14:47:39,087 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-22 14:47:39,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:47:39,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:47:39,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:47:39,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7202fae6-1a56-4126-acd6-d32b03b42498/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 14:49:09,476 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2021-11-22 14:49:09,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:49:09,512 WARN L261 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 125 conjunts are in the unsatisfiable core [2021-11-22 14:49:09,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:49:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:49:09,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:49:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:49:16,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411141165] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:49:16,779 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 14:49:16,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2021-11-22 14:49:16,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503971581] [2021-11-22 14:49:16,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 14:49:16,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2021-11-22 14:49:16,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:49:16,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2021-11-22 14:49:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4219, Invalid=11783, Unknown=0, NotChecked=0, Total=16002 [2021-11-22 14:49:16,787 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 127 states, 127 states have (on average 1.0551181102362204) internal successors, (134), 127 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:49:20,533 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 3 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 43) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 48) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 26) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 34) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 24) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 11) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 36) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 28) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 45) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 54) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 39) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 58) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 21 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 33) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 55) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 18) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 50) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 38) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 61) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 27) 4294967296) 268435455) (< (mod (+ 59 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 12) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 60) 4294967296) 268435455)) is different from false [2021-11-22 14:51:13,499 WARN L227 SmtUtils]: Spent 35.44s on a formula simplification. DAG size of input: 246 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:51:15,516 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 3 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 43) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 48) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 26) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 34) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 24) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 11) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 36) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 28) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 45) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 54) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 39) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 58) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 21 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 33) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 55) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 18) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 50) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 38) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 27) 4294967296) 268435455) (< (mod (+ 59 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:53:11,396 WARN L227 SmtUtils]: Spent 32.14s on a formula simplification. DAG size of input: 238 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 14:53:13,417 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 3 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 43) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 48) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 26) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 34) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 24) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 57 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 11) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 36) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 28) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 45) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 54) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 39) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 21 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 33) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 55) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 18) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 50) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 38) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 27) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:53:15,431 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 3 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 43) 4294967296) 268435455) (< (mod (+ 56 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 48) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 26) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 34) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 24) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 11) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 36) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 28) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 45) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 54) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 39) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 21 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 33) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 55) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 18) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 50) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 38) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 27) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:53:17,454 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 3 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 43) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 48) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 26) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 34) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 24) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 11) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 36) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 28) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 45) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 54) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 39) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 21 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 33) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 55) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 18) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 50) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 38) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 27) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 12) 4294967296) 268435455)) is different from false [2021-11-22 14:53:19,466 WARN L838 $PredicateComparison]: unable to prove that (and (< (mod (+ 3 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 43) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 48) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 26) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 34) 4294967296) 268435455) (< (mod (+ 30 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 9 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 24) 4294967296) 268435455) (< (mod (+ 29 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 13) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 11) 4294967296) 268435455) (< (mod (+ 42 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 16 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 5 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 36) 4294967296) 268435455) (< (mod (+ 2 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 41 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 28) 4294967296) 268435455) (< (mod (+ 35 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 45) 4294967296) 268435455) (< (mod (+ 6 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 1) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 54) 4294967296) 268435455) (< (mod (+ 49 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 39) 4294967296) 268435455) (< (mod (+ 47 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 40 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 31 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 21 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 33) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 44 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 46 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 8) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 18) 4294967296) 268435455) (< (mod (+ 7 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 50) 4294967296) 268435455) (< (mod (+ 53 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 38) 4294967296) 268435455) (< (mod (+ 52 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 22 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 32 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 27) 4294967296) 268435455) (< (mod (+ 51 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ 14 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~z~0#1| 12) 4294967296) 268435455)) is different from false