./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa --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 87992b509300f030a5da432e9377be19bc7547f7933c7234d13c36c34b6235c7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:25:34,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:25:34,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:25:35,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:25:35,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:25:35,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:25:35,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:25:35,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:25:35,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:25:35,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:25:35,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:25:35,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:25:35,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:25:35,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:25:35,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:25:35,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:25:35,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:25:35,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:25:35,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:25:35,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:25:35,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:25:35,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:25:35,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:25:35,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:25:35,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:25:35,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:25:35,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:25:35,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:25:35,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:25:35,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:25:35,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:25:35,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:25:35,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:25:35,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:25:35,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:25:35,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:25:35,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:25:35,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:25:35,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:25:35,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:25:35,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:25:35,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:25:35,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:25:35,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:25:35,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:25:35,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:25:35,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:25:35,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:25:35,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:25:35,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:25:35,078 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:25:35,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:25:35,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:25:35,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:25:35,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:25:35,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:25:35,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:25:35,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:25:35,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:25:35,080 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:25:35,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:25:35,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:25:35,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:25:35,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:25:35,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:25:35,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:25:35,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:25:35,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:25:35,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:25:35,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:25:35,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:25:35,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:25:35,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:25:35,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:25:35,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:25:35,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:25:35,083 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_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87992b509300f030a5da432e9377be19bc7547f7933c7234d13c36c34b6235c7 [2021-12-07 01:25:35,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:25:35,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:25:35,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:25:35,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:25:35,297 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:25:35,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c [2021-12-07 01:25:35,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/data/08ee7c8cf/b5be422123eb4e5c8162e23a328d30ab/FLAG3585470bf [2021-12-07 01:25:35,732 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:25:35,732 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c [2021-12-07 01:25:35,736 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/data/08ee7c8cf/b5be422123eb4e5c8162e23a328d30ab/FLAG3585470bf [2021-12-07 01:25:35,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/data/08ee7c8cf/b5be422123eb4e5c8162e23a328d30ab [2021-12-07 01:25:35,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:25:35,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:25:35,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:25:35,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:25:35,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:25:35,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9e3903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35, skipping insertion in model container [2021-12-07 01:25:35,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:25:35,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:25:35,869 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_ab983db7-9f73-43f5-bb44-e998b4a15553/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c[313,326] [2021-12-07 01:25:35,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:25:35,885 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:25:35,895 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_ab983db7-9f73-43f5-bb44-e998b4a15553/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c[313,326] [2021-12-07 01:25:35,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:25:35,906 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:25:35,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35 WrapperNode [2021-12-07 01:25:35,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:25:35,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:25:35,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:25:35,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:25:35,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,931 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2021-12-07 01:25:35,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:25:35,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:25:35,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:25:35,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:25:35,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:25:35,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:25:35,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:25:35,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:25:35,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (1/1) ... [2021-12-07 01:25:35,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:25:35,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:35,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:25:35,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:25:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:25:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:25:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:25:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:25:36,056 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:25:36,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:25:36,130 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:25:36,135 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:25:36,135 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:25:36,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:36 BoogieIcfgContainer [2021-12-07 01:25:36,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:25:36,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:25:36,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:25:36,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:25:36,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:25:35" (1/3) ... [2021-12-07 01:25:36,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8ef664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:25:36, skipping insertion in model container [2021-12-07 01:25:36,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:25:35" (2/3) ... [2021-12-07 01:25:36,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8ef664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:25:36, skipping insertion in model container [2021-12-07 01:25:36,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:25:36" (3/3) ... [2021-12-07 01:25:36,146 INFO L111 eAbstractionObserver]: Analyzing ICFG Mono1_1-2.c [2021-12-07 01:25:36,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:25:36,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:25:36,200 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:25:36,206 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 [2021-12-07 01:25:36,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:25:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:36,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-07 01:25:36,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:36,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-07 01:25:36,223 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-12-07 01:25:36,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:36,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303981941] [2021-12-07 01:25:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:36,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:36,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:36,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303981941] [2021-12-07 01:25:36,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303981941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:36,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:36,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:25:36,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299601317] [2021-12-07 01:25:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:36,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:25:36,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:25:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:25:36,374 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-12-07 01:25:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:36,387 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-12-07 01:25:36,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:25:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2021-12-07 01:25:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:36,397 INFO L225 Difference]: With dead ends: 20 [2021-12-07 01:25:36,397 INFO L226 Difference]: Without dead ends: 8 [2021-12-07 01:25:36,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:25:36,404 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:36,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-07 01:25:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-07 01:25:36,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:25:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-12-07 01:25:36,432 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-12-07 01:25:36,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:36,433 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-07 01:25:36,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-12-07 01:25:36,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-12-07 01:25:36,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-07 01:25:36,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:36,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-07 01:25:36,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:25:36,434 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:36,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:36,435 INFO L85 PathProgramCache]: Analyzing trace with hash 889639793, now seen corresponding path program 1 times [2021-12-07 01:25:36,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:36,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549492209] [2021-12-07 01:25:36,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:36,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:36,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:36,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549492209] [2021-12-07 01:25:36,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549492209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:25:36,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:25:36,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:25:36,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007394967] [2021-12-07 01:25:36,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:25:36,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:25:36,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:25:36,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:25:36,503 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. 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) [2021-12-07 01:25:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:36,520 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2021-12-07 01:25:36,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:25:36,520 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 [2021-12-07 01:25:36,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:36,521 INFO L225 Difference]: With dead ends: 16 [2021-12-07 01:25:36,521 INFO L226 Difference]: Without dead ends: 10 [2021-12-07 01:25:36,522 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 [2021-12-07 01:25:36,523 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:36,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-07 01:25:36,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-07 01:25:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-12-07 01:25:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-12-07 01:25:36,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-12-07 01:25:36,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:36,528 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-07 01:25:36,528 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) [2021-12-07 01:25:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-12-07 01:25:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-07 01:25:36,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:36,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:36,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:25:36,530 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:36,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:36,530 INFO L85 PathProgramCache]: Analyzing trace with hash 295691924, now seen corresponding path program 1 times [2021-12-07 01:25:36,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:36,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236331306] [2021-12-07 01:25:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:36,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:36,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:36,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:36,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236331306] [2021-12-07 01:25:36,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236331306] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:36,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222461642] [2021-12-07 01:25:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:36,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:36,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:36,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:36,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:25:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:36,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-07 01:25:36,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:36,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:36,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222461642] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:36,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:36,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-07 01:25:36,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965035610] [2021-12-07 01:25:36,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:36,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:25:36,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:36,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:25:36,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:25:36,713 INFO L87 Difference]: Start difference. First operand 10 states and 11 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) [2021-12-07 01:25:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:36,779 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2021-12-07 01:25:36,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:25:36,779 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 8 [2021-12-07 01:25:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:36,779 INFO L225 Difference]: With dead ends: 20 [2021-12-07 01:25:36,779 INFO L226 Difference]: Without dead ends: 14 [2021-12-07 01:25:36,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:25:36,781 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:36,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-07 01:25:36,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-12-07 01:25:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 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) [2021-12-07 01:25:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-12-07 01:25:36,784 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2021-12-07 01:25:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:36,784 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-12-07 01:25:36,785 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) [2021-12-07 01:25:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-12-07 01:25:36,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-07 01:25:36,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:36,785 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:36,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:25:36,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:36,987 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:36,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:36,989 INFO L85 PathProgramCache]: Analyzing trace with hash 572634524, now seen corresponding path program 1 times [2021-12-07 01:25:36,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:36,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079521575] [2021-12-07 01:25:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:36,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:37,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:37,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079521575] [2021-12-07 01:25:37,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079521575] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:37,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613150486] [2021-12-07 01:25:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:37,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:37,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:37,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:37,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:25:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:37,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:25:37,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:37,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:37,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613150486] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:37,343 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:37,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 10 [2021-12-07 01:25:37,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770049776] [2021-12-07 01:25:37,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:37,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:25:37,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:25:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:25:37,345 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-12-07 01:25:37,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:37,507 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-12-07 01:25:37,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:25:37,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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 12 [2021-12-07 01:25:37,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:37,508 INFO L225 Difference]: With dead ends: 28 [2021-12-07 01:25:37,508 INFO L226 Difference]: Without dead ends: 21 [2021-12-07 01:25:37,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:25:37,509 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:37,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 17 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:25:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-07 01:25:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-07 01:25:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 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) [2021-12-07 01:25:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-12-07 01:25:37,513 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-12-07 01:25:37,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:37,514 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-12-07 01:25:37,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-12-07 01:25:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-12-07 01:25:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-07 01:25:37,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:37,514 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:37,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:25:37,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:37,716 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:37,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1634475176, now seen corresponding path program 2 times [2021-12-07 01:25:37,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:37,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353484717] [2021-12-07 01:25:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:37,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:37,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:37,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353484717] [2021-12-07 01:25:37,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353484717] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:37,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900241098] [2021-12-07 01:25:37,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:25:37,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:37,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:37,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:37,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:25:37,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:25:37,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:25:37,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-07 01:25:37,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:37,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:38,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900241098] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:38,187 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:38,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 18 [2021-12-07 01:25:38,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764817295] [2021-12-07 01:25:38,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:38,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-07 01:25:38,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:38,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-07 01:25:38,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2021-12-07 01:25:38,189 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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) [2021-12-07 01:25:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:39,448 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2021-12-07 01:25:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:25:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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 20 [2021-12-07 01:25:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:39,449 INFO L225 Difference]: With dead ends: 44 [2021-12-07 01:25:39,449 INFO L226 Difference]: Without dead ends: 37 [2021-12-07 01:25:39,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=231, Invalid=369, Unknown=0, NotChecked=0, Total=600 [2021-12-07 01:25:39,451 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 35 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:39,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 19 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:25:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-07 01:25:39,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-12-07 01:25:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 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) [2021-12-07 01:25:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-12-07 01:25:39,458 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 20 [2021-12-07 01:25:39,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:39,459 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-12-07 01:25:39,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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) [2021-12-07 01:25:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-12-07 01:25:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-07 01:25:39,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:39,460 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:39,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 01:25:39,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:39,661 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:39,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:39,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1104705856, now seen corresponding path program 3 times [2021-12-07 01:25:39,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:39,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412589092] [2021-12-07 01:25:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:39,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 15 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:39,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:39,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412589092] [2021-12-07 01:25:39,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412589092] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:39,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159930554] [2021-12-07 01:25:39,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 01:25:39,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:39,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:39,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:39,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:25:39,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-07 01:25:39,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:25:39,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:25:39,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-12-07 01:25:39,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:40,092 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-12-07 01:25:40,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159930554] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:40,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:40,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 4, 6] total 23 [2021-12-07 01:25:40,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975863476] [2021-12-07 01:25:40,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:40,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-07 01:25:40,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:40,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-07 01:25:40,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2021-12-07 01:25:40,094 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 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) [2021-12-07 01:25:40,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:25:40,438 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2021-12-07 01:25:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 01:25:40,439 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 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 36 [2021-12-07 01:25:40,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:25:40,440 INFO L225 Difference]: With dead ends: 56 [2021-12-07 01:25:40,440 INFO L226 Difference]: Without dead ends: 47 [2021-12-07 01:25:40,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2021-12-07 01:25:40,441 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 36 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:25:40,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 16 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:25:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-12-07 01:25:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-12-07 01:25:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 states have internal predecessors, (49), 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) [2021-12-07 01:25:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-12-07 01:25:40,449 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 36 [2021-12-07 01:25:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:25:40,450 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-12-07 01:25:40,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 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) [2021-12-07 01:25:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-12-07 01:25:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-07 01:25:40,451 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:25:40,452 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 4, 1, 1, 1, 1, 1, 1] [2021-12-07 01:25:40,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 01:25:40,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-07 01:25:40,653 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:25:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:25:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1664138286, now seen corresponding path program 4 times [2021-12-07 01:25:40,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:25:40,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990006999] [2021-12-07 01:25:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:25:40,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:25:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:25:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 112 proven. 240 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 01:25:40,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:25:40,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990006999] [2021-12-07 01:25:40,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990006999] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:25:40,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510291091] [2021-12-07 01:25:40,951 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 01:25:40,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:25:40,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:25:40,952 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:25:40,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:25:40,981 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 01:25:40,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:25:40,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 41 conjunts are in the unsatisfiable core [2021-12-07 01:25:40,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:25:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:41,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:25:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:25:41,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510291091] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:25:41,743 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:25:41,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 22] total 43 [2021-12-07 01:25:41,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274274419] [2021-12-07 01:25:41,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:25:41,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-12-07 01:25:41,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:25:41,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-12-07 01:25:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=519, Invalid=1287, Unknown=0, NotChecked=0, Total=1806 [2021-12-07 01:25:41,745 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 43 states have internal predecessors, (90), 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) [2021-12-07 01:26:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:09,842 INFO L93 Difference]: Finished difference Result 76 states and 101 transitions. [2021-12-07 01:26:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-07 01:26:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 43 states have internal predecessors, (90), 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 44 [2021-12-07 01:26:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:09,844 INFO L225 Difference]: With dead ends: 76 [2021-12-07 01:26:09,844 INFO L226 Difference]: Without dead ends: 63 [2021-12-07 01:26:09,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=940, Invalid=1922, Unknown=0, NotChecked=0, Total=2862 [2021-12-07 01:26:09,846 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:09,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 66 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-07 01:26:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-07 01:26:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-07 01:26:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 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) [2021-12-07 01:26:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2021-12-07 01:26:09,852 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 44 [2021-12-07 01:26:09,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:09,852 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2021-12-07 01:26:09,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 43 states have internal predecessors, (90), 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) [2021-12-07 01:26:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-12-07 01:26:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-07 01:26:09,854 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:09,854 INFO L514 BasicCegarLoop]: trace histogram [28, 16, 12, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:09,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 01:26:10,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-07 01:26:10,055 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1269144285, now seen corresponding path program 5 times [2021-12-07 01:26:10,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:10,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138930295] [2021-12-07 01:26:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:10,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-07 01:26:10,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:10,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138930295] [2021-12-07 01:26:10,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138930295] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:26:10,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215106347] [2021-12-07 01:26:10,233 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 01:26:10,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:10,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:26:10,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:26:10,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 01:26:11,717 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2021-12-07 01:26:11,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:26:11,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-07 01:26:11,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:26:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-07 01:26:11,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:26:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-07 01:26:12,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215106347] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:26:12,579 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:26:12,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 20] total 38 [2021-12-07 01:26:12,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798661180] [2021-12-07 01:26:12,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:26:12,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-12-07 01:26:12,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:26:12,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-07 01:26:12,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=991, Unknown=0, NotChecked=0, Total=1406 [2021-12-07 01:26:12,581 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 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) [2021-12-07 01:26:56,775 WARN L227 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 105 DAG size of output: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:26:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:26:56,778 INFO L93 Difference]: Finished difference Result 128 states and 170 transitions. [2021-12-07 01:26:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-07 01:26:56,778 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 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 62 [2021-12-07 01:26:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:26:56,779 INFO L225 Difference]: With dead ends: 128 [2021-12-07 01:26:56,779 INFO L226 Difference]: Without dead ends: 99 [2021-12-07 01:26:56,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 44.2s TimeCoverageRelationStatistics Valid=1061, Invalid=1909, Unknown=0, NotChecked=0, Total=2970 [2021-12-07 01:26:56,781 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 85 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:26:56,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 32 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 01:26:56,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-07 01:26:56,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-12-07 01:26:56,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1326530612244898) internal successors, (111), 98 states have internal predecessors, (111), 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) [2021-12-07 01:26:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2021-12-07 01:26:56,789 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 62 [2021-12-07 01:26:56,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:26:56,790 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2021-12-07 01:26:56,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 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) [2021-12-07 01:26:56,790 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-12-07 01:26:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-07 01:26:56,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:26:56,791 INFO L514 BasicCegarLoop]: trace histogram [46, 34, 12, 1, 1, 1, 1, 1, 1] [2021-12-07 01:26:56,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-07 01:26:56,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:56,993 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:26:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:26:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash -905639277, now seen corresponding path program 6 times [2021-12-07 01:26:56,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:26:56,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844685281] [2021-12-07 01:26:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:26:56,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:26:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:26:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 805 proven. 1190 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-07 01:26:57,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:26:57,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844685281] [2021-12-07 01:26:57,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844685281] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:26:57,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500981953] [2021-12-07 01:26:57,531 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-07 01:26:57,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:26:57,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:26:57,532 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:26:57,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab983db7-9f73-43f5-bb44-e998b4a15553/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 01:27:02,425 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 47 check-sat command(s) [2021-12-07 01:27:02,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:27:02,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 90 conjunts are in the unsatisfiable core [2021-12-07 01:27:02,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:27:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 220 proven. 1892 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:27:02,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:27:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 220 proven. 1892 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:27:07,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500981953] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:27:07,113 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:27:07,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 46, 47] total 92 [2021-12-07 01:27:07,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417943714] [2021-12-07 01:27:07,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:27:07,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-12-07 01:27:07,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:27:07,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-12-07 01:27:07,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2242, Invalid=6130, Unknown=0, NotChecked=0, Total=8372 [2021-12-07 01:27:07,117 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 92 states, 92 states have (on average 2.0434782608695654) internal successors, (188), 92 states have internal predecessors, (188), 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) [2021-12-07 01:28:49,206 WARN L227 SmtUtils]: Spent 45.64s on a formula simplification. DAG size of input: 265 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:28:51,239 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse0 10000000) (<= 100000000 .cse0))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296))) (or (<= 100000000 .cse1) (< .cse1 10000000))) (let ((.cse2 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse2 10000000) (<= 100000000 .cse2))) (let ((.cse3 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse3 10000000) (<= 100000000 .cse3))) (let ((.cse4 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse4) (< .cse4 10000000))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296))) (or (<= 100000000 .cse5) (< .cse5 10000000))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296))) (or (< .cse6 10000000) (<= 100000000 .cse6))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (<= 100000000 .cse7) (< .cse7 10000000))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (< .cse8 10000000) (<= 100000000 .cse8))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296))) (or (< .cse9 10000000) (<= 100000000 .cse9))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296))) (or (<= 100000000 .cse10) (< .cse10 10000000))) (let ((.cse11 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse11) (< .cse11 10000000))) (let ((.cse12 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse12) (< .cse12 10000000))) (let ((.cse13 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse13 10000000) (<= 100000000 .cse13))) (let ((.cse14 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse14) (< .cse14 10000000))) (let ((.cse15 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse15) (< .cse15 10000000))) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (<= 100000000 .cse16) (< .cse16 10000000))) (let ((.cse17 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse17) (< .cse17 10000000))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (<= 100000000 .cse18) (< .cse18 10000000))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (<= 100000000 .cse19) (< .cse19 10000000))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse20 10000000) (<= 100000000 .cse20))) (let ((.cse21 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse21 10000000) (<= 100000000 .cse21))) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse22 10000000) (<= 100000000 .cse22))) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (< .cse23 10000000) (<= 100000000 .cse23))) (let ((.cse24 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse24) (< .cse24 10000000))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (< .cse25 10000000) (<= 100000000 .cse25))) (let ((.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse26 10000000) (<= 100000000 .cse26))) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 10000000) (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (< .cse27 10000000) (<= 100000000 .cse27))) (let ((.cse28 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse28 10000000) (<= 100000000 .cse28))) (let ((.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296))) (or (<= 100000000 .cse29) (< .cse29 10000000))) (let ((.cse30 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse30) (< .cse30 10000000))) (let ((.cse31 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse31) (< .cse31 10000000))) (let ((.cse32 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse32) (< .cse32 10000000))) (let ((.cse33 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse33) (< .cse33 10000000))) (let ((.cse34 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse34) (< .cse34 10000000))) (let ((.cse35 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse35 10000000) (<= 100000000 .cse35))) (let ((.cse36 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse36) (< .cse36 10000000))) (let ((.cse37 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse37 10000000) (<= 100000000 .cse37))) (let ((.cse38 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (<= 100000000 .cse38) (< .cse38 10000000))) (let ((.cse39 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse39 10000000) (<= 100000000 .cse39))) (let ((.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296))) (or (<= 100000000 .cse40) (< .cse40 10000000))) (let ((.cse41 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (<= 100000000 .cse41) (< .cse41 10000000)))) is different from false [2021-12-07 01:30:41,629 WARN L227 SmtUtils]: Spent 49.33s on a formula simplification. DAG size of input: 203 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:32:53,866 WARN L227 SmtUtils]: Spent 56.93s on a formula simplification. DAG size of input: 221 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:32:56,009 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse0 10000000) (<= 100000000 .cse0))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296))) (or (<= 100000000 .cse1) (< .cse1 10000000))) (let ((.cse2 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse2 10000000) (<= 100000000 .cse2))) (let ((.cse3 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse3 10000000) (<= 100000000 .cse3))) (let ((.cse4 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse4) (< .cse4 10000000))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296))) (or (<= 100000000 .cse5) (< .cse5 10000000))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296))) (or (< .cse6 10000000) (<= 100000000 .cse6))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (<= 100000000 .cse7) (< .cse7 10000000))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (< .cse8 10000000) (<= 100000000 .cse8))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296))) (or (< .cse9 10000000) (<= 100000000 .cse9))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296))) (or (<= 100000000 .cse10) (< .cse10 10000000))) (let ((.cse11 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse11) (< .cse11 10000000))) (let ((.cse12 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse12) (< .cse12 10000000))) (let ((.cse13 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse13 10000000) (<= 100000000 .cse13))) (let ((.cse14 (mod (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse14) (< .cse14 10000000))) (let ((.cse15 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse15) (< .cse15 10000000))) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (<= 100000000 .cse16) (< .cse16 10000000))) (let ((.cse17 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse17) (< .cse17 10000000))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (<= 100000000 .cse18) (< .cse18 10000000))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (<= 100000000 .cse19) (< .cse19 10000000))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse20 10000000) (<= 100000000 .cse20))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse21 10000000) (<= 100000000 .cse21))) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (< .cse22 10000000) (<= 100000000 .cse22))) (let ((.cse23 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse23) (< .cse23 10000000))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (< .cse24 10000000) (<= 100000000 .cse24))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse25 10000000) (<= 100000000 .cse25))) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 10000000) (let ((.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (< .cse26 10000000) (<= 100000000 .cse26))) (let ((.cse27 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse27 10000000) (<= 100000000 .cse27))) (let ((.cse28 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse28) (< .cse28 10000000))) (let ((.cse29 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse29) (< .cse29 10000000))) (let ((.cse30 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse30) (< .cse30 10000000))) (let ((.cse31 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse31) (< .cse31 10000000))) (let ((.cse32 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse32) (< .cse32 10000000))) (let ((.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse33 10000000) (<= 100000000 .cse33))) (let ((.cse34 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse34) (< .cse34 10000000))) (let ((.cse35 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse35 10000000) (<= 100000000 .cse35))) (let ((.cse36 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (<= 100000000 .cse36) (< .cse36 10000000))) (let ((.cse37 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse37 10000000) (<= 100000000 .cse37))) (let ((.cse38 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296))) (or (<= 100000000 .cse38) (< .cse38 10000000))) (let ((.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (<= 100000000 .cse39) (< .cse39 10000000)))) is different from false [2021-12-07 01:32:58,107 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ 46 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse0 10000000) (<= 100000000 .cse0))) (let ((.cse1 (mod (+ 44 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse1 10000000) (<= 100000000 .cse1))) (let ((.cse2 (mod (+ 47 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse2 10000000) (<= 100000000 .cse2))) (let ((.cse3 (mod (+ 16 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse3) (< .cse3 10000000))) (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296))) (or (<= 100000000 .cse4) (< .cse4 10000000))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296))) (or (< .cse5 10000000) (<= 100000000 .cse5))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (<= 100000000 .cse6) (< .cse6 10000000))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (< .cse7 10000000) (<= 100000000 .cse7))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296))) (or (< .cse8 10000000) (<= 100000000 .cse8))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296))) (or (<= 100000000 .cse9) (< .cse9 10000000))) (let ((.cse10 (mod (+ 22 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse10) (< .cse10 10000000))) (let ((.cse11 (mod (+ 29 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse11) (< .cse11 10000000))) (let ((.cse12 (mod (+ 21 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse12 10000000) (<= 100000000 .cse12))) (let ((.cse13 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse13) (< .cse13 10000000))) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (<= 100000000 .cse14) (< .cse14 10000000))) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (<= 100000000 .cse15) (< .cse15 10000000))) (let ((.cse16 (mod (+ 51 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse16 10000000) (<= 100000000 .cse16))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse17 10000000) (<= 100000000 .cse17))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (< .cse18 10000000) (<= 100000000 .cse18))) (let ((.cse19 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse19) (< .cse19 10000000))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (< .cse20 10000000) (<= 100000000 .cse20))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (< .cse21 10000000) (<= 100000000 .cse21))) (let ((.cse22 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse22 10000000) (<= 100000000 .cse22))) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296))) (or (<= 100000000 .cse23) (< .cse23 10000000))) (let ((.cse24 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse24) (< .cse24 10000000))) (let ((.cse25 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse25) (< .cse25 10000000))) (let ((.cse26 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse26) (< .cse26 10000000))) (let ((.cse27 (mod (+ 49 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse27) (< .cse27 10000000))) (let ((.cse28 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse28) (< .cse28 10000000))) (let ((.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse29 10000000) (<= 100000000 .cse29))) (let ((.cse30 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse30) (< .cse30 10000000))) (let ((.cse31 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse31 10000000) (<= 100000000 .cse31))) (let ((.cse32 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (<= 100000000 .cse32) (< .cse32 10000000))) (let ((.cse33 (mod (+ 52 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse33) (< .cse33 10000000))) (let ((.cse34 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse34 10000000) (<= 100000000 .cse34))) (let ((.cse35 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296))) (or (<= 100000000 .cse35) (< .cse35 10000000))) (let ((.cse36 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (<= 100000000 .cse36) (< .cse36 10000000)))) is different from false [2021-12-07 01:34:56,399 WARN L227 SmtUtils]: Spent 54.78s on a formula simplification. DAG size of input: 191 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:36:55,512 WARN L227 SmtUtils]: Spent 39.51s on a formula simplification. DAG size of input: 209 DAG size of output: 17 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:38:43,415 WARN L227 SmtUtils]: Spent 48.18s on a formula simplification. DAG size of input: 235 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)