./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_3_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8 --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 41039e1ca02f0c1a8ce2142160f9ec0f4ca3178e082edea8dc4d2cb9edc06efd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:01:01,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:01:01,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:01:01,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:01:01,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:01:01,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:01:01,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:01:01,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:01:01,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:01:01,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:01:01,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:01:01,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:01:01,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:01:01,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:01:01,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:01:01,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:01:01,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:01:01,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:01:01,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:01:01,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:01:01,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:01:01,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:01:01,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:01:01,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:01:01,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:01:01,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:01:01,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:01:01,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:01:01,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:01:01,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:01:01,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:01:01,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:01:01,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:01:01,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:01:01,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:01:01,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:01:01,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:01:01,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:01:01,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:01:01,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:01:01,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:01:01,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:01:01,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:01:01,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:01:01,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:01:01,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:01:01,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:01:01,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:01:01,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:01:01,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:01:01,148 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:01:01,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:01:01,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:01:01,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:01:01,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:01:01,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:01:01,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:01:01,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:01:01,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:01:01,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:01:01,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:01:01,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:01:01,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:01:01,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:01:01,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:01:01,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:01:01,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:01:01,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:01:01,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:01:01,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:01:01,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:01:01,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:01:01,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:01:01,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:01:01,157 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:01:01,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:01:01,157 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:01:01,157 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41039e1ca02f0c1a8ce2142160f9ec0f4ca3178e082edea8dc4d2cb9edc06efd [2022-12-13 20:01:01,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:01:01,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:01:01,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:01:01,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:01:01,362 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:01:01,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_3_5.i [2022-12-13 20:01:03,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:01:04,046 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:01:04,047 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i [2022-12-13 20:01:04,052 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data/233dcf316/6639a39c95b8484ca453a91049527144/FLAG470e685bf [2022-12-13 20:01:04,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data/233dcf316/6639a39c95b8484ca453a91049527144 [2022-12-13 20:01:04,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:01:04,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:01:04,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:01:04,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:01:04,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:01:04,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e9536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04, skipping insertion in model container [2022-12-13 20:01:04,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:01:04,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:01:04,563 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[1226,1239] [2022-12-13 20:01:04,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[2862,2875] [2022-12-13 20:01:04,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:01:04,587 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:01:04,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[1226,1239] [2022-12-13 20:01:04,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[2862,2875] [2022-12-13 20:01:04,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:01:04,613 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:01:04,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04 WrapperNode [2022-12-13 20:01:04,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:01:04,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:01:04,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:01:04,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:01:04,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,639 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2022-12-13 20:01:04,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:01:04,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:01:04,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:01:04,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:01:04,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,658 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:01:04,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:01:04,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:01:04,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:01:04,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (1/1) ... [2022-12-13 20:01:04,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:01:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:01:04,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:01:04,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:01:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:01:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-13 20:01:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-13 20:01:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 20:01:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 20:01:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:01:04,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:01:04,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:01:04,770 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:01:04,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:01:04,890 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:01:04,895 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:01:04,895 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:01:04,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:01:04 BoogieIcfgContainer [2022-12-13 20:01:04,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:01:04,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:01:04,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:01:04,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:01:04,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:01:04" (1/3) ... [2022-12-13 20:01:04,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d2d791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:01:04, skipping insertion in model container [2022-12-13 20:01:04,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:04" (2/3) ... [2022-12-13 20:01:04,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d2d791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:01:04, skipping insertion in model container [2022-12-13 20:01:04,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:01:04" (3/3) ... [2022-12-13 20:01:04,906 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_5.i [2022-12-13 20:01:04,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:01:04,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:01:04,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:01:04,981 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72aaee8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:01:04,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:01:04,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:01:04,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:04,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:04,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:04,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-12-13 20:01:05,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:01:05,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425541701] [2022-12-13 20:01:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:05,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:01:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:05,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:05,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:01:05,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425541701] [2022-12-13 20:01:05,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425541701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:01:05,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:01:05,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:01:05,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773065203] [2022-12-13 20:01:05,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:01:05,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:01:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:01:05,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:01:05,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:01:05,300 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-12-13 20:01:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:01:05,345 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2022-12-13 20:01:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:01:05,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Word has length 11 [2022-12-13 20:01:05,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:01:05,352 INFO L225 Difference]: With dead ends: 96 [2022-12-13 20:01:05,352 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 20:01:05,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:01:05,357 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 23 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:01:05,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 134 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:01:05,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 20:01:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-12-13 20:01:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-12-13 20:01:05,386 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2022-12-13 20:01:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:01:05,387 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-12-13 20:01:05,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-12-13 20:01:05,387 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-12-13 20:01:05,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:01:05,388 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:05,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:05,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:01:05,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:05,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1776235347, now seen corresponding path program 1 times [2022-12-13 20:01:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:01:05,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820624691] [2022-12-13 20:01:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:05,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:01:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:05,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:01:05,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820624691] [2022-12-13 20:01:05,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820624691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:01:05,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:01:05,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:01:05,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453204681] [2022-12-13 20:01:05,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:01:05,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:01:05,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:01:05,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:01:05,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:01:05,522 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-12-13 20:01:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:01:05,591 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-12-13 20:01:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:01:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Word has length 11 [2022-12-13 20:01:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:01:05,592 INFO L225 Difference]: With dead ends: 39 [2022-12-13 20:01:05,592 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 20:01:05,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:01:05,594 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:01:05,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 155 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:01:05,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 20:01:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-13 20:01:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 20:01:05,601 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 20:01:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:01:05,601 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 20:01:05,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-12-13 20:01:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 20:01:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:01:05,602 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:05,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:05,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:01:05,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:05,603 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times [2022-12-13 20:01:05,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:01:05,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066808157] [2022-12-13 20:01:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:05,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:01:05,617 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 20:01:05,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95685850] [2022-12-13 20:01:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:05,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:01:05,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:01:05,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:01:05,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:01:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:05,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 20:01:05,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:01:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:16,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:01:20,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:01:20,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066808157] [2022-12-13 20:01:20,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 20:01:20,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 139 [2022-12-13 20:01:20,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95685850] [2022-12-13 20:01:20,372 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 20:01:20,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-13 20:01:20,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:01:20,575 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:933) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:772) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:346) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 45 more [2022-12-13 20:01:20,578 INFO L158 Benchmark]: Toolchain (without parser) took 16135.35ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 138.2MB in the beginning and 167.9MB in the end (delta: -29.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 20:01:20,579 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:01:20,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.10ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 126.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:01:20,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.12ms. Allocated memory is still 172.0MB. Free memory was 126.6MB in the beginning and 125.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:01:20,580 INFO L158 Benchmark]: Boogie Preprocessor took 20.05ms. Allocated memory is still 172.0MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:01:20,580 INFO L158 Benchmark]: RCFGBuilder took 236.92ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 111.4MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:01:20,581 INFO L158 Benchmark]: TraceAbstraction took 15678.39ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 110.9MB in the beginning and 167.9MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:01:20,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.10ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 126.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.12ms. Allocated memory is still 172.0MB. Free memory was 126.6MB in the beginning and 125.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.05ms. Allocated memory is still 172.0MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 236.92ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 111.4MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15678.39ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 110.9MB in the beginning and 167.9MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8 --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 41039e1ca02f0c1a8ce2142160f9ec0f4ca3178e082edea8dc4d2cb9edc06efd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:01:21,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:01:21,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:01:21,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:01:21,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:01:21,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:01:21,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:01:21,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:01:21,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:01:21,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:01:21,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:01:21,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:01:21,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:01:21,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:01:21,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:01:21,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:01:21,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:01:21,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:01:21,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:01:21,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:01:21,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:01:21,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:01:21,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:01:21,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:01:21,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:01:21,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:01:21,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:01:21,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:01:21,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:01:21,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:01:21,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:01:21,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:01:21,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:01:21,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:01:21,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:01:21,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:01:21,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:01:21,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:01:21,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:01:21,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:01:21,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:01:21,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 20:01:21,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:01:21,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:01:21,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:01:21,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:01:21,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:01:21,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:01:21,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:01:21,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:01:21,956 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:01:21,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:01:21,957 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:01:21,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:01:21,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:01:21,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:01:21,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:01:21,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:01:21,958 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:01:21,958 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:01:21,958 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:01:21,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:01:21,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:01:21,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:01:21,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:01:21,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:01:21,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:01:21,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:01:21,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:01:21,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:01:21,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:01:21,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:01:21,961 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:01:21,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:01:21,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:01:21,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:01:21,961 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:01:21,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:01:21,962 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:01:21,962 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:01:21,962 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41039e1ca02f0c1a8ce2142160f9ec0f4ca3178e082edea8dc4d2cb9edc06efd [2022-12-13 20:01:22,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:01:22,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:01:22,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:01:22,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:01:22,207 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:01:22,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_3_5.i [2022-12-13 20:01:24,825 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:01:24,943 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:01:24,943 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i [2022-12-13 20:01:24,949 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data/7e64389fa/666f41f2fa0845078934ca042557d21a/FLAG635c8a431 [2022-12-13 20:01:24,961 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/data/7e64389fa/666f41f2fa0845078934ca042557d21a [2022-12-13 20:01:24,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:01:24,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:01:24,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:01:24,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:01:24,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:01:24,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:01:24" (1/1) ... [2022-12-13 20:01:24,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f53fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:24, skipping insertion in model container [2022-12-13 20:01:24,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:01:24" (1/1) ... [2022-12-13 20:01:24,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:01:24,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:01:25,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[1226,1239] [2022-12-13 20:01:25,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[2862,2875] [2022-12-13 20:01:25,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:01:25,131 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:01:25,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[1226,1239] [2022-12-13 20:01:25,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/sv-benchmarks/c/combinations/gcd_3+newton_3_5.i[2862,2875] [2022-12-13 20:01:25,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:01:25,160 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:01:25,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25 WrapperNode [2022-12-13 20:01:25,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:01:25,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:01:25,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:01:25,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:01:25,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,188 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2022-12-13 20:01:25,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:01:25,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:01:25,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:01:25,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:01:25,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:01:25,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:01:25,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:01:25,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:01:25,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (1/1) ... [2022-12-13 20:01:25,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:01:25,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:01:25,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:01:25,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:01:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:01:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:01:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-13 20:01:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-13 20:01:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 20:01:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 20:01:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:01:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:01:25,332 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:01:25,334 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:01:34,783 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:01:34,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:01:34,789 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:01:34,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:01:34 BoogieIcfgContainer [2022-12-13 20:01:34,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:01:34,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:01:34,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:01:34,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:01:34,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:01:24" (1/3) ... [2022-12-13 20:01:34,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b9da90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:01:34, skipping insertion in model container [2022-12-13 20:01:34,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:01:25" (2/3) ... [2022-12-13 20:01:34,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b9da90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:01:34, skipping insertion in model container [2022-12-13 20:01:34,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:01:34" (3/3) ... [2022-12-13 20:01:34,797 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_5.i [2022-12-13 20:01:34,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:01:34,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:01:34,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:01:34,849 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@133cd4da, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:01:34,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:01:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:34,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:01:34,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:34,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:34,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:34,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:34,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-12-13 20:01:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:01:34,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484064661] [2022-12-13 20:01:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:34,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:01:34,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:01:34,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 20:01:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:34,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:01:34,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:01:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:35,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:01:35,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:01:35,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484064661] [2022-12-13 20:01:35,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484064661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:01:35,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:01:35,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:01:35,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910415665] [2022-12-13 20:01:35,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:01:35,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:01:35,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:01:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:01:35,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:01:35,072 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-12-13 20:01:35,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:01:35,146 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2022-12-13 20:01:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:01:35,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Word has length 11 [2022-12-13 20:01:35,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:01:35,154 INFO L225 Difference]: With dead ends: 74 [2022-12-13 20:01:35,154 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 20:01:35,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:01:35,159 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:01:35,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:01:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 20:01:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-13 20:01:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-12-13 20:01:35,186 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 11 [2022-12-13 20:01:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:01:35,186 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-12-13 20:01:35,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-12-13 20:01:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-12-13 20:01:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:01:35,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:35,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:35,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:01:35,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:35,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 65622039, now seen corresponding path program 1 times [2022-12-13 20:01:35,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:01:35,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872285872] [2022-12-13 20:01:35,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:35,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:35,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:01:35,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:01:35,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 20:01:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:35,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 20:01:35,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:01:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:35,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:01:35,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:01:35,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872285872] [2022-12-13 20:01:35,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872285872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:01:35,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:01:35,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:01:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651093041] [2022-12-13 20:01:35,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:01:35,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:01:35,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:01:35,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:01:35,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:01:35,599 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-12-13 20:01:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:01:35,725 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2022-12-13 20:01:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:01:35,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Word has length 11 [2022-12-13 20:01:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:01:35,727 INFO L225 Difference]: With dead ends: 49 [2022-12-13 20:01:35,727 INFO L226 Difference]: Without dead ends: 40 [2022-12-13 20:01:35,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:01:35,729 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:01:35,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 103 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:01:35,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-13 20:01:35,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2022-12-13 20:01:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 20:01:35,739 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 20:01:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:01:35,739 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 20:01:35,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-12-13 20:01:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 20:01:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:01:35,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:35,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:35,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-13 20:01:35,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:35,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:35,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash -743724587, now seen corresponding path program 1 times [2022-12-13 20:01:35,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:01:35,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200334289] [2022-12-13 20:01:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:35,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:35,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:01:35,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:01:35,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 20:01:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:35,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 20:01:35,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:01:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:36,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:01:36,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:01:36,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200334289] [2022-12-13 20:01:36,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200334289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:01:36,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:01:36,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:01:36,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870556773] [2022-12-13 20:01:36,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:01:36,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:01:36,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:01:36,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:01:36,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:01:36,403 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-12-13 20:01:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:01:36,991 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-12-13 20:01:36,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:01:36,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Word has length 11 [2022-12-13 20:01:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:01:36,993 INFO L225 Difference]: With dead ends: 40 [2022-12-13 20:01:36,993 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 20:01:36,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:01:36,994 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:01:36,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 185 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 20:01:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 20:01:37,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-12-13 20:01:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:01:37,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 20:01:37,001 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 20:01:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:01:37,001 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 20:01:37,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-12-13 20:01:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 20:01:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:01:37,002 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:01:37,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:01:37,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 20:01:37,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:37,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:01:37,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:01:37,206 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times [2022-12-13 20:01:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:01:37,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358580470] [2022-12-13 20:01:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:01:37,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:01:37,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:01:37,211 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:01:37,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 20:01:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:01:37,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 20:01:37,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:01:39,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:39,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:01:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:01:57,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:01:57,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358580470] [2022-12-13 20:01:57,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358580470] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:01:57,256 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:01:57,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-12-13 20:01:57,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572858077] [2022-12-13 20:01:57,257 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:01:57,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 20:01:57,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:01:57,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 20:01:57,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=237, Unknown=6, NotChecked=0, Total=306 [2022-12-13 20:01:57,258 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-12-13 20:02:04,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:02:05,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:02:26,154 WARN L233 SmtUtils]: Spent 15.02s on a formula simplification. DAG size of input: 31 DAG size of output: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:02:59,225 WARN L233 SmtUtils]: Spent 15.03s on a formula simplification. DAG size of input: 35 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:03:30,090 WARN L233 SmtUtils]: Spent 15.78s on a formula simplification. DAG size of input: 39 DAG size of output: 32 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:03:53,960 WARN L233 SmtUtils]: Spent 17.90s on a formula simplification. DAG size of input: 42 DAG size of output: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:03:54,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:03:54,173 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-12-13 20:03:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 20:03:54,180 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 [2022-12-13 20:03:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:03:54,180 INFO L225 Difference]: With dead ends: 52 [2022-12-13 20:03:54,180 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 20:03:54,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 129.0s TimeCoverageRelationStatistics Valid=238, Invalid=671, Unknown=21, NotChecked=0, Total=930 [2022-12-13 20:03:54,182 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 45 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:03:54,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 271 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-13 20:03:54,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 20:03:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-12-13 20:03:54,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:03:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2022-12-13 20:03:54,188 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 12 [2022-12-13 20:03:54,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:03:54,188 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2022-12-13 20:03:54,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-12-13 20:03:54,188 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-12-13 20:03:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 20:03:54,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:03:54,189 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:03:54,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-13 20:03:54,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:03:54,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:03:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:03:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1911673028, now seen corresponding path program 1 times [2022-12-13 20:03:54,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:03:54,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283294736] [2022-12-13 20:03:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:03:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:03:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:03:54,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:03:54,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 20:03:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:03:57,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 20:03:57,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:04:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:04:31,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:06:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:06:00,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:06:00,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283294736] [2022-12-13 20:06:00,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283294736] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:06:00,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:06:00,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-12-13 20:06:00,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311125620] [2022-12-13 20:06:00,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:06:00,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 20:06:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:06:00,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 20:06:00,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=364, Unknown=15, NotChecked=0, Total=462 [2022-12-13 20:06:00,939 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2022-12-13 20:06:05,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 20:06:18,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 20:06:26,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 20:06:28,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 20:06:31,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:06:33,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:06:35,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:06:38,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:15,596 WARN L233 SmtUtils]: Spent 20.09s on a formula simplification. DAG size of input: 38 DAG size of output: 36 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:07:16,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:19,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:21,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:08:11,078 WARN L233 SmtUtils]: Spent 37.26s on a formula simplification. DAG size of input: 54 DAG size of output: 44 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:08:13,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:08:15,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:08:18,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:08:20,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:08:22,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:08:25,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:08:28,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:09:47,454 WARN L233 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 63 DAG size of output: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:10:23,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:10:25,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:10:27,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:12:05,271 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification. DAG size of input: 72 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:12:07,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 20:12:21,336 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 33 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:12:23,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:12:24,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:12:25,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:12:27,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 20:13:50,986 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 75 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:14:06,171 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 37 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:14:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:20,529 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-12-13 20:14:20,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:14:20,554 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 14 [2022-12-13 20:14:20,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:20,555 INFO L225 Difference]: With dead ends: 53 [2022-12-13 20:14:20,555 INFO L226 Difference]: Without dead ends: 43 [2022-12-13 20:14:20,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 536.4s TimeCoverageRelationStatistics Valid=251, Invalid=830, Unknown=41, NotChecked=0, Total=1122 [2022-12-13 20:14:20,556 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 58 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 6 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:20,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 348 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 142 Invalid, 19 Unknown, 0 Unchecked, 69.6s Time] [2022-12-13 20:14:20,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-13 20:14:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-12-13 20:14:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:14:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-12-13 20:14:20,562 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2022-12-13 20:14:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:20,562 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-12-13 20:14:20,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2022-12-13 20:14:20,562 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-12-13 20:14:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 20:14:20,563 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:20,563 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:20,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-12-13 20:14:20,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:14:20,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash 571830174, now seen corresponding path program 2 times [2022-12-13 20:14:20,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:14:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467713581] [2022-12-13 20:14:20,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:14:20,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:14:20,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:14:20,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:14:20,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6df9391-180e-4db2-88ff-a6f43dc8e4f8/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 20:14:43,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:14:43,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:14:43,951 WARN L261 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 20:14:43,953 INFO L286 TraceCheckSpWp]: Computing forward predicates...