./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/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_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF --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 0.2.1-dev-53f42b1 [2021-11-20 07:35:36,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:35:36,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:35:36,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:35:36,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:35:36,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:35:36,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:35:36,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:35:36,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:35:36,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:35:36,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:35:36,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:35:36,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:35:36,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:35:36,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:35:36,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:35:36,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:35:36,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:35:36,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:35:36,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:35:36,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:35:36,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:35:36,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:35:36,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:35:36,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:35:36,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:35:36,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:35:36,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:35:36,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:35:36,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:35:36,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:35:36,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:35:36,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:35:36,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:35:36,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:35:36,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:35:36,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:35:36,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:35:36,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:35:36,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:35:36,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:35:36,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:35:36,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:35:36,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:35:36,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:35:36,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:35:36,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:35:36,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:35:36,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:35:36,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:35:36,499 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:35:36,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:35:36,501 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:35:36,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:35:36,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:35:36,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:35:36,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:35:36,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:35:36,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:35:36,503 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:35:36,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:35:36,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:35:36,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:35:36,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:35:36,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:35:36,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:35:36,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:36,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:35:36,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:35:36,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:35:36,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:35:36,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:35:36,508 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:35:36,508 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:35:36,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:35:36,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:35:36,509 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_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87992b509300f030a5da432e9377be19bc7547f7933c7234d13c36c34b6235c7 [2021-11-20 07:35:36,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:35:36,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:35:36,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:35:36,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:35:36,823 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:35:36,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c [2021-11-20 07:35:36,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/data/53392f3fc/d977df6c906c44ab869d284419d2574d/FLAG236886842 [2021-11-20 07:35:37,418 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:35:37,418 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c [2021-11-20 07:35:37,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/data/53392f3fc/d977df6c906c44ab869d284419d2574d/FLAG236886842 [2021-11-20 07:35:37,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/data/53392f3fc/d977df6c906c44ab869d284419d2574d [2021-11-20 07:35:37,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:35:37,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:35:37,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:37,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:35:37,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:35:37,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:37" (1/1) ... [2021-11-20 07:35:37,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651a6158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:37, skipping insertion in model container [2021-11-20 07:35:37,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:37" (1/1) ... [2021-11-20 07:35:37,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:35:37,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:35:38,042 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_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c[313,326] [2021-11-20 07:35:38,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:38,061 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:35:38,074 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_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c[313,326] [2021-11-20 07:35:38,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:38,090 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:35:38,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38 WrapperNode [2021-11-20 07:35:38,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:38,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:38,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:35:38,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:35:38,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,122 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2021-11-20 07:35:38,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:38,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:35:38,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:35:38,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:35:38,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:35:38,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:35:38,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:35:38,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:35:38,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (1/1) ... [2021-11-20 07:35:38,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:38,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:38,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:38,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:35:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:35:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:35:38,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:35:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:35:38,279 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:35:38,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:35:38,408 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:35:38,414 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:35:38,415 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:35:38,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:38 BoogieIcfgContainer [2021-11-20 07:35:38,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:35:38,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:35:38,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:35:38,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:35:38,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:35:37" (1/3) ... [2021-11-20 07:35:38,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e4089a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:35:38, skipping insertion in model container [2021-11-20 07:35:38,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:38" (2/3) ... [2021-11-20 07:35:38,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e4089a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:35:38, skipping insertion in model container [2021-11-20 07:35:38,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:38" (3/3) ... [2021-11-20 07:35:38,428 INFO L111 eAbstractionObserver]: Analyzing ICFG Mono1_1-2.c [2021-11-20 07:35:38,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:35:38,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:35:38,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:35:38,509 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:35:38,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:35:38,527 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) [2021-11-20 07:35:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:35:38,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:38,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:35:38,543 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:38,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:38,549 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-11-20 07:35:38,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:38,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990387692] [2021-11-20 07:35:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:38,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:38,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:38,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990387692] [2021-11-20 07:35:38,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990387692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:35:38,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:35:38,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:35:38,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913421241] [2021-11-20 07:35:38,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:35:38,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:35:38,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:35:38,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:35:38,765 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) [2021-11-20 07:35:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:38,782 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-11-20 07:35:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:35:38,785 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 [2021-11-20 07:35:38,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:38,794 INFO L225 Difference]: With dead ends: 20 [2021-11-20 07:35:38,795 INFO L226 Difference]: Without dead ends: 8 [2021-11-20 07:35:38,799 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 [2021-11-20 07:35:38,805 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 [2021-11-20 07:35:38,806 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] [2021-11-20 07:35:38,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-20 07:35:38,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-20 07:35:38,838 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) [2021-11-20 07:35:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-20 07:35:38,841 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-11-20 07:35:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:38,841 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-20 07:35:38,842 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) [2021-11-20 07:35:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-20 07:35:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:35:38,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:38,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:35:38,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:35:38,844 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash 889639793, now seen corresponding path program 1 times [2021-11-20 07:35:38,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:38,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841848666] [2021-11-20 07:35:38,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:38,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:39,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841848666] [2021-11-20 07:35:39,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841848666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:35:39,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:35:39,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:35:39,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827887256] [2021-11-20 07:35:39,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:35:39,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:35:39,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:35:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:35:39,040 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) [2021-11-20 07:35:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:39,080 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2021-11-20 07:35:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:35:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-20 07:35:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:39,082 INFO L225 Difference]: With dead ends: 16 [2021-11-20 07:35:39,082 INFO L226 Difference]: Without dead ends: 10 [2021-11-20 07:35:39,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:35:39,084 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 [2021-11-20 07:35:39,084 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] [2021-11-20 07:35:39,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-20 07:35:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-20 07:35:39,088 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) [2021-11-20 07:35:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-20 07:35:39,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-11-20 07:35:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:39,089 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-20 07:35:39,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:35:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-20 07:35:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 07:35:39,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:39,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:39,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:35:39,091 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash 295691924, now seen corresponding path program 1 times [2021-11-20 07:35:39,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:39,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956817275] [2021-11-20 07:35:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:39,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:39,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:39,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956817275] [2021-11-20 07:35:39,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956817275] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:39,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701061063] [2021-11-20 07:35:39,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:39,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:39,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:39,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:39,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:35:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 07:35:39,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:39,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:39,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:39,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701061063] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:39,390 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:39,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-20 07:35:39,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078235072] [2021-11-20 07:35:39,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:39,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:35:39,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:35:39,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:35:39,393 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) [2021-11-20 07:35:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:39,528 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2021-11-20 07:35:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:35:39,528 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 [2021-11-20 07:35:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:39,529 INFO L225 Difference]: With dead ends: 20 [2021-11-20 07:35:39,529 INFO L226 Difference]: Without dead ends: 14 [2021-11-20 07:35:39,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:35:39,531 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:39,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:35:39,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-20 07:35:39,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-11-20 07:35:39,536 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) [2021-11-20 07:35:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-20 07:35:39,537 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2021-11-20 07:35:39,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:39,537 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-20 07:35:39,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:35:39,538 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-20 07:35:39,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:35:39,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:39,538 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:39,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:39,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-20 07:35:39,778 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:39,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:39,778 INFO L85 PathProgramCache]: Analyzing trace with hash 572634524, now seen corresponding path program 1 times [2021-11-20 07:35:39,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:39,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664577640] [2021-11-20 07:35:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:39,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:39,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664577640] [2021-11-20 07:35:39,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664577640] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:39,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625470998] [2021-11-20 07:35:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:39,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:39,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:39,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:39,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:35:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:35:39,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:40,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:40,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625470998] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:40,211 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:40,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 10 [2021-11-20 07:35:40,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687703699] [2021-11-20 07:35:40,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:40,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:35:40,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:40,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:35:40,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:35:40,214 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) [2021-11-20 07:35:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:40,518 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-11-20 07:35:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:35:40,519 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 [2021-11-20 07:35:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:40,519 INFO L225 Difference]: With dead ends: 28 [2021-11-20 07:35:40,520 INFO L226 Difference]: Without dead ends: 21 [2021-11-20 07:35:40,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:35:40,522 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:40,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 17 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:35:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-20 07:35:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-20 07:35:40,527 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) [2021-11-20 07:35:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-20 07:35:40,528 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-11-20 07:35:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:40,529 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-20 07:35:40,529 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) [2021-11-20 07:35:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-20 07:35:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 07:35:40,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:40,530 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:40,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:40,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:40,757 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1634475176, now seen corresponding path program 2 times [2021-11-20 07:35:40,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:40,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795675004] [2021-11-20 07:35:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:40,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:40,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:40,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795675004] [2021-11-20 07:35:40,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795675004] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:40,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457990524] [2021-11-20 07:35:40,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:35:40,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:40,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:40,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:40,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:35:40,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:35:40,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:40,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 07:35:40,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:41,191 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:41,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:41,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457990524] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:41,606 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:41,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 18 [2021-11-20 07:35:41,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741983344] [2021-11-20 07:35:41,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:41,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 07:35:41,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:41,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 07:35:41,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:35:41,612 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) [2021-11-20 07:35:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:43,345 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2021-11-20 07:35:43,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 07:35:43,350 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 [2021-11-20 07:35:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:43,351 INFO L225 Difference]: With dead ends: 44 [2021-11-20 07:35:43,351 INFO L226 Difference]: Without dead ends: 37 [2021-11-20 07:35:43,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=231, Invalid=369, Unknown=0, NotChecked=0, Total=600 [2021-11-20 07:35:43,353 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 35 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:43,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 19 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:35:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-20 07:35:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-20 07:35:43,360 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) [2021-11-20 07:35:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-11-20 07:35:43,362 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 20 [2021-11-20 07:35:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:43,362 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-11-20 07:35:43,362 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) [2021-11-20 07:35:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-11-20 07:35:43,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 07:35:43,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:43,364 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:43,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:43,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:43,577 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:43,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1104705856, now seen corresponding path program 3 times [2021-11-20 07:35:43,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:43,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564492113] [2021-11-20 07:35:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:43,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 15 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:43,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:43,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564492113] [2021-11-20 07:35:43,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564492113] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:43,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354271547] [2021-11-20 07:35:43,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:35:43,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:43,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:43,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:43,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:35:44,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-20 07:35:44,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:44,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:35:44,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-11-20 07:35:44,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-11-20 07:35:44,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354271547] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:44,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:44,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 4, 6] total 23 [2021-11-20 07:35:44,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136908625] [2021-11-20 07:35:44,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:44,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 07:35:44,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:44,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 07:35:44,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2021-11-20 07:35:44,365 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) [2021-11-20 07:35:44,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:44,865 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2021-11-20 07:35:44,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:35:44,869 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 [2021-11-20 07:35:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:44,870 INFO L225 Difference]: With dead ends: 56 [2021-11-20 07:35:44,870 INFO L226 Difference]: Without dead ends: 47 [2021-11-20 07:35:44,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2021-11-20 07:35:44,872 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 36 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:44,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 16 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:35:44,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-20 07:35:44,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-11-20 07:35:44,880 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) [2021-11-20 07:35:44,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-11-20 07:35:44,881 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 36 [2021-11-20 07:35:44,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:44,882 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-20 07:35:44,882 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) [2021-11-20 07:35:44,882 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-11-20 07:35:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 07:35:44,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:44,884 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 4, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:44,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:45,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 07:35:45,102 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:45,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:45,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1664138286, now seen corresponding path program 4 times [2021-11-20 07:35:45,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:45,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621248977] [2021-11-20 07:35:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:45,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 112 proven. 240 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 07:35:45,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:45,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621248977] [2021-11-20 07:35:45,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621248977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847065415] [2021-11-20 07:35:45,459 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:35:45,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:45,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:45,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:45,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:35:45,509 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:35:45,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:45,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-20 07:35:45,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:45,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:46,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847065415] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:46,864 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:46,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 22] total 43 [2021-11-20 07:35:46,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350888874] [2021-11-20 07:35:46,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:46,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-20 07:35:46,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:46,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-20 07:35:46,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=519, Invalid=1287, Unknown=0, NotChecked=0, Total=1806 [2021-11-20 07:35:46,868 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) [2021-11-20 07:36:16,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:36:16,858 INFO L93 Difference]: Finished difference Result 76 states and 101 transitions. [2021-11-20 07:36:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:36:16,859 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 [2021-11-20 07:36:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:36:16,861 INFO L225 Difference]: With dead ends: 76 [2021-11-20 07:36:16,862 INFO L226 Difference]: Without dead ends: 63 [2021-11-20 07:36:16,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=940, Invalid=1922, Unknown=0, NotChecked=0, Total=2862 [2021-11-20 07:36:16,864 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:36:16,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 66 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 07:36:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-20 07:36:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-20 07:36:16,874 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) [2021-11-20 07:36:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2021-11-20 07:36:16,875 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 44 [2021-11-20 07:36:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:36:16,875 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2021-11-20 07:36:16,876 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) [2021-11-20 07:36:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-11-20 07:36:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 07:36:16,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:16,878 INFO L514 BasicCegarLoop]: trace histogram [28, 16, 12, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:16,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:17,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 07:36:17,097 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1269144285, now seen corresponding path program 5 times [2021-11-20 07:36:17,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:17,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367646265] [2021-11-20 07:36:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:17,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-20 07:36:17,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:36:17,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367646265] [2021-11-20 07:36:17,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367646265] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:36:17,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172004428] [2021-11-20 07:36:17,458 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:36:17,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:36:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:17,465 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:36:17,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 07:36:18,935 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2021-11-20 07:36:18,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:36:18,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-20 07:36:18,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:36:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-20 07:36:19,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:36:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-20 07:36:20,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172004428] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:36:20,507 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:36:20,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 20] total 38 [2021-11-20 07:36:20,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438110795] [2021-11-20 07:36:20,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:36:20,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-20 07:36:20,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:36:20,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-20 07:36:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=991, Unknown=0, NotChecked=0, Total=1406 [2021-11-20 07:36:20,512 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) [2021-11-20 07:37:03,510 WARN L227 SmtUtils]: Spent 5.25s 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) [2021-11-20 07:37:03,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:37:03,525 INFO L93 Difference]: Finished difference Result 128 states and 170 transitions. [2021-11-20 07:37:03,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-20 07:37:03,526 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 [2021-11-20 07:37:03,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:37:03,528 INFO L225 Difference]: With dead ends: 128 [2021-11-20 07:37:03,528 INFO L226 Difference]: Without dead ends: 99 [2021-11-20 07:37:03,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=1061, Invalid=1909, Unknown=0, NotChecked=0, Total=2970 [2021-11-20 07:37:03,530 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 85 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:37:03,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 32 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 07:37:03,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-20 07:37:03,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-20 07:37:03,542 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) [2021-11-20 07:37:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2021-11-20 07:37:03,544 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 62 [2021-11-20 07:37:03,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:37:03,544 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2021-11-20 07:37:03,544 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) [2021-11-20 07:37:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-11-20 07:37:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 07:37:03,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:37:03,548 INFO L514 BasicCegarLoop]: trace histogram [46, 34, 12, 1, 1, 1, 1, 1, 1] [2021-11-20 07:37:03,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:37:03,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:37:03,752 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:37:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:37:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash -905639277, now seen corresponding path program 6 times [2021-11-20 07:37:03,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:37:03,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031090419] [2021-11-20 07:37:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:37:03,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:37:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 805 proven. 1190 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-20 07:37:04,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:37:04,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031090419] [2021-11-20 07:37:04,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031090419] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:37:04,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948397155] [2021-11-20 07:37:04,693 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 07:37:04,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:37:04,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:37:04,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:37:04,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbcb82c-98a4-4301-8a29-fa58ad88fb45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 07:37:09,725 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 47 check-sat command(s) [2021-11-20 07:37:09,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:37:09,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 90 conjunts are in the unsatisfiable core [2021-11-20 07:37:09,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:37:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 220 proven. 1892 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:37:10,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:37:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 220 proven. 1892 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:37:15,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948397155] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:37:15,891 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:37:15,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 46, 47] total 92 [2021-11-20 07:37:15,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774000662] [2021-11-20 07:37:15,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:37:15,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-11-20 07:37:15,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:37:15,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-11-20 07:37:15,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2242, Invalid=6130, Unknown=0, NotChecked=0, Total=8372 [2021-11-20 07:37:15,896 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) [2021-11-20 07:38:52,796 WARN L227 SmtUtils]: Spent 50.33s 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) [2021-11-20 07:38:54,821 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 [2021-11-20 07:40:56,048 WARN L227 SmtUtils]: Spent 52.42s 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) [2021-11-20 07:43:43,249 WARN L227 SmtUtils]: Spent 1.83m 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) [2021-11-20 07:45:21,726 WARN L227 SmtUtils]: Spent 41.16s on a formula simplification. DAG size of input: 247 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:45:23,812 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 [2021-11-20 07:47:02,556 WARN L227 SmtUtils]: Spent 43.36s on a formula simplification. DAG size of input: 241 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:49:12,014 WARN L227 SmtUtils]: Spent 56.69s 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) [2021-11-20 07:49:14,048 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 (+ 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 (+ 2 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse13) (< .cse13 10000000))) (let ((.cse14 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse14) (< .cse14 10000000))) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (<= 100000000 .cse15) (< .cse15 10000000))) (let ((.cse16 (mod (+ 6 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse16) (< .cse16 10000000))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (<= 100000000 .cse17) (< .cse17 10000000))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (<= 100000000 .cse18) (< .cse18 10000000))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse19 10000000) (<= 100000000 .cse19))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse20 10000000) (<= 100000000 .cse20))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (< .cse21 10000000) (<= 100000000 .cse21))) (let ((.cse22 (mod (+ 30 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse22) (< .cse22 10000000))) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (< .cse23 10000000) (<= 100000000 .cse23))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse24 10000000) (<= 100000000 .cse24))) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 10000000) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (< .cse25 10000000) (<= 100000000 .cse25))) (let ((.cse26 (mod (+ 42 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse26 10000000) (<= 100000000 .cse26))) (let ((.cse27 (mod (+ 41 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse27) (< .cse27 10000000))) (let ((.cse28 (mod (+ 14 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse28) (< .cse28 10000000))) (let ((.cse29 (mod (+ 35 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse29) (< .cse29 10000000))) (let ((.cse30 (mod (+ 31 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse30) (< .cse30 10000000))) (let ((.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse31 10000000) (<= 100000000 .cse31))) (let ((.cse32 (mod (+ 32 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (<= 100000000 .cse32) (< .cse32 10000000))) (let ((.cse33 (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse33 10000000) (<= 100000000 .cse33))) (let ((.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (<= 100000000 .cse34) (< .cse34 10000000))) (let ((.cse35 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse35 10000000) (<= 100000000 .cse35))) (let ((.cse36 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296))) (or (<= 100000000 .cse36) (< .cse36 10000000))) (let ((.cse37 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (<= 100000000 .cse37) (< .cse37 10000000)))) is different from false