./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_3_6.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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 cefb3bae89bbacb2fe493d14201bba1802fb381afd861fd412b13151077489a8 --- 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 16:16:35,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:16:35,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:16:35,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:16:35,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:16:35,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:16:35,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:16:35,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:16:35,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:16:35,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:16:35,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:16:35,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:16:35,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:16:35,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:16:35,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:16:35,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:16:35,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:16:35,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:16:35,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:16:35,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:16:35,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:16:35,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:16:35,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:16:35,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:16:35,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:16:35,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:16:35,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:16:35,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:16:35,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:16:35,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:16:35,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:16:35,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:16:35,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:16:35,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:16:35,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:16:35,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:16:35,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:16:35,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:16:35,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:16:35,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:16:35,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:16:35,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:16:35,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:16:35,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:16:35,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:16:35,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:16:35,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:16:35,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:16:35,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:16:35,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:16:35,223 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:16:35,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:16:35,223 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:16:35,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:16:35,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:16:35,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:16:35,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:16:35,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:16:35,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:16:35,225 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:16:35,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:16:35,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:16:35,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:16:35,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:16:35,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:16:35,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:16:35,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:16:35,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:16:35,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:16:35,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:16:35,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:16:35,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:16:35,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:16:35,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:16:35,227 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:16:35,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:16:35,228 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:16:35,228 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cefb3bae89bbacb2fe493d14201bba1802fb381afd861fd412b13151077489a8 [2022-12-13 16:16:35,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:16:35,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:16:35,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:16:35,437 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:16:35,437 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:16:35,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_3_6.i [2022-12-13 16:16:37,915 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:16:38,099 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:16:38,100 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i [2022-12-13 16:16:38,104 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data/543890b8c/c6179cd321744c378dfe897a89854284/FLAGd2a8b5841 [2022-12-13 16:16:38,506 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data/543890b8c/c6179cd321744c378dfe897a89854284 [2022-12-13 16:16:38,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:16:38,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:16:38,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:16:38,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:16:38,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:16:38,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b89fa03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38, skipping insertion in model container [2022-12-13 16:16:38,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:16:38,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:16:38,662 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[1226,1239] [2022-12-13 16:16:38,687 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[2862,2875] [2022-12-13 16:16:38,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:16:38,698 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:16:38,710 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[1226,1239] [2022-12-13 16:16:38,720 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[2862,2875] [2022-12-13 16:16:38,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:16:38,734 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:16:38,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38 WrapperNode [2022-12-13 16:16:38,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:16:38,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:16:38,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:16:38,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:16:38,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,772 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2022-12-13 16:16:38,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:16:38,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:16:38,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:16:38,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:16:38,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:16:38,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:16:38,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:16:38,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:16:38,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (1/1) ... [2022-12-13 16:16:38,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:16:38,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:38,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:16:38,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:16:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:16:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-13 16:16:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-13 16:16:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 16:16:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 16:16:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:16:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:16:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:16:38,932 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:16:38,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:16:39,075 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:16:39,081 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:16:39,081 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:16:39,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:16:39 BoogieIcfgContainer [2022-12-13 16:16:39,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:16:39,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:16:39,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:16:39,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:16:39,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:16:38" (1/3) ... [2022-12-13 16:16:39,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6441691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:16:39, skipping insertion in model container [2022-12-13 16:16:39,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:38" (2/3) ... [2022-12-13 16:16:39,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6441691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:16:39, skipping insertion in model container [2022-12-13 16:16:39,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:16:39" (3/3) ... [2022-12-13 16:16:39,092 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_6.i [2022-12-13 16:16:39,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:16:39,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:16:39,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:16:39,150 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;@79024cfa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:16:39,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:16:39,155 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 16:16:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:16:39,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:39,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:39,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:16:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:39,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-12-13 16:16:39,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:39,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034746425] [2022-12-13 16:16:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:39,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:39,374 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 16:16:39,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:39,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034746425] [2022-12-13 16:16:39,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034746425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:16:39,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:16:39,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:16:39,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330297073] [2022-12-13 16:16:39,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:16:39,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:16:39,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:16:39,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:16:39,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:16:39,403 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 16:16:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:39,449 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2022-12-13 16:16:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:16:39,451 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 16:16:39,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:39,456 INFO L225 Difference]: With dead ends: 96 [2022-12-13 16:16:39,457 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 16:16:39,459 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 16:16:39,462 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 16:16:39,462 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 16:16:39,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 16:16:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-12-13 16:16:39,489 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 16:16:39,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-12-13 16:16:39,491 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2022-12-13 16:16:39,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:39,492 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-12-13 16:16:39,492 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 16:16:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-12-13 16:16:39,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:16:39,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:39,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:39,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:16:39,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:16:39,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1776235347, now seen corresponding path program 1 times [2022-12-13 16:16:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:39,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491544663] [2022-12-13 16:16:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:39,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:39,633 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 16:16:39,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:39,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491544663] [2022-12-13 16:16:39,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491544663] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:16:39,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:16:39,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:16:39,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235099636] [2022-12-13 16:16:39,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:16:39,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:16:39,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:16:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:16:39,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:16:39,637 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 16:16:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:16:39,690 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-12-13 16:16:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:16:39,691 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 16:16:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:16:39,691 INFO L225 Difference]: With dead ends: 39 [2022-12-13 16:16:39,691 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 16:16:39,692 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 16:16:39,692 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 16:16:39,693 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 16:16:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 16:16:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-13 16:16:39,696 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 16:16:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 16:16:39,697 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 16:16:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:16:39,698 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 16:16:39,698 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 16:16:39,698 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 16:16:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:16:39,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:16:39,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:16:39,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:16:39,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:16:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:16:39,699 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times [2022-12-13 16:16:39,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:16:39,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688000193] [2022-12-13 16:16:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:39,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:16:39,707 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:16:39,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586997954] [2022-12-13 16:16:39,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:16:39,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:39,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:39,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:16:39,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:16:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:16:39,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 16:16:39,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:16:46,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:16:46,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688000193] [2022-12-13 16:16:46,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 139 [2022-12-13 16:16:46,473 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:16:46,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586997954] [2022-12-13 16:16:46,473 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 16:16:46,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:16:46,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:16:46,676 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) 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) ... 44 more [2022-12-13 16:16:46,687 INFO L158 Benchmark]: Toolchain (without parser) took 8176.30ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 61.5MB in the end (delta: 56.0MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2022-12-13 16:16:46,688 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 90.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:16:46,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.10ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 106.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 16:16:46,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.01ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:16:46,693 INFO L158 Benchmark]: Boogie Preprocessor took 26.26ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 103.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:16:46,695 INFO L158 Benchmark]: RCFGBuilder took 282.95ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 90.4MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:16:46,697 INFO L158 Benchmark]: TraceAbstraction took 7598.98ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 61.5MB in the end (delta: 28.2MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-12-13 16:16:46,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 90.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.10ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 106.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.01ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.26ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 103.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.95ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 90.4MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7598.98ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 61.5MB in the end (delta: 28.2MB). Peak memory consumption was 31.4MB. 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 cefb3bae89bbacb2fe493d14201bba1802fb381afd861fd412b13151077489a8 --- 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 16:16:48,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:16:48,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:16:48,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:16:48,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:16:48,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:16:48,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:16:48,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:16:48,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:16:48,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:16:48,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:16:48,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:16:48,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:16:48,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:16:48,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:16:48,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:16:48,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:16:48,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:16:48,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:16:48,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:16:48,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:16:48,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:16:48,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:16:48,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:16:48,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:16:48,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:16:48,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:16:48,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:16:48,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:16:48,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:16:48,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:16:48,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:16:48,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:16:48,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:16:48,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:16:48,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:16:48,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:16:48,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:16:48,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:16:48,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:16:48,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:16:48,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 16:16:48,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:16:48,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:16:48,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:16:48,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:16:48,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:16:48,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:16:48,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:16:48,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:16:48,304 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:16:48,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:16:48,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:16:48,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:16:48,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:16:48,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:16:48,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:16:48,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:16:48,305 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:16:48,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:16:48,306 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:16:48,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:16:48,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:16:48,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:16:48,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:16:48,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:16:48,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:16:48,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:16:48,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:16:48,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:16:48,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:16:48,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:16:48,308 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:16:48,309 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:16:48,309 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cefb3bae89bbacb2fe493d14201bba1802fb381afd861fd412b13151077489a8 [2022-12-13 16:16:48,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:16:48,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:16:48,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:16:48,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:16:48,540 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:16:48,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/gcd_3+newton_3_6.i [2022-12-13 16:16:51,082 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:16:51,241 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:16:51,242 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i [2022-12-13 16:16:51,247 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data/4f8df4360/99f32a11dd6441e9bc5543f1f8d4d697/FLAGb7d304b9d [2022-12-13 16:16:51,644 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/data/4f8df4360/99f32a11dd6441e9bc5543f1f8d4d697 [2022-12-13 16:16:51,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:16:51,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:16:51,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:16:51,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:16:51,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:16:51,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5875cd10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51, skipping insertion in model container [2022-12-13 16:16:51,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:16:51,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:16:51,782 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[1226,1239] [2022-12-13 16:16:51,806 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[2862,2875] [2022-12-13 16:16:51,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:16:51,819 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:16:51,830 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[1226,1239] [2022-12-13 16:16:51,837 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_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/sv-benchmarks/c/combinations/gcd_3+newton_3_6.i[2862,2875] [2022-12-13 16:16:51,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:16:51,849 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:16:51,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51 WrapperNode [2022-12-13 16:16:51,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:16:51,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:16:51,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:16:51,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:16:51,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,877 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2022-12-13 16:16:51,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:16:51,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:16:51,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:16:51,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:16:51,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:16:51,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:16:51,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:16:51,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:16:51,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (1/1) ... [2022-12-13 16:16:51,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:16:51,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:16:51,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:16:51,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:16:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:16:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:16:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-13 16:16:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-13 16:16:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 16:16:51,969 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 16:16:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:16:51,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:16:52,034 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:16:52,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:17:02,020 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:17:02,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:17:02,026 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:17:02,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:17:02 BoogieIcfgContainer [2022-12-13 16:17:02,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:17:02,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:17:02,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:17:02,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:17:02,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:16:51" (1/3) ... [2022-12-13 16:17:02,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49070cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:17:02, skipping insertion in model container [2022-12-13 16:17:02,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:16:51" (2/3) ... [2022-12-13 16:17:02,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49070cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:17:02, skipping insertion in model container [2022-12-13 16:17:02,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:17:02" (3/3) ... [2022-12-13 16:17:02,037 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_6.i [2022-12-13 16:17:02,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:17:02,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:17:02,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:17:02,098 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;@3cdd4604, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:17:02,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:17:02,101 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 16:17:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:17:02,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:02,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:02,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:17:02,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-12-13 16:17:02,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:17:02,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970065412] [2022-12-13 16:17:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:02,119 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 16:17:02,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:17:02,120 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:02,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:02,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:17:02,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:17:02,276 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 16:17:02,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:17:02,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:17:02,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970065412] [2022-12-13 16:17:02,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970065412] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:02,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:02,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:02,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194817586] [2022-12-13 16:17:02,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:02,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:02,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:17:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:02,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:02,305 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 16:17:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:02,378 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2022-12-13 16:17:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:02,386 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 16:17:02,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:02,390 INFO L225 Difference]: With dead ends: 74 [2022-12-13 16:17:02,390 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 16:17:02,392 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 16:17:02,395 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 16:17:02,395 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 16:17:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 16:17:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-13 16:17:02,420 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 16:17:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-12-13 16:17:02,422 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 11 [2022-12-13 16:17:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:02,422 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-12-13 16:17:02,422 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 16:17:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-12-13 16:17:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:17:02,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:02,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:02,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:02,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:02,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:17:02,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash 65622039, now seen corresponding path program 1 times [2022-12-13 16:17:02,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:17:02,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864655122] [2022-12-13 16:17:02,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:02,626 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 16:17:02,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:17:02,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:02,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:02,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:17:02,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:17:02,836 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 16:17:02,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:17:02,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:17:02,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864655122] [2022-12-13 16:17:02,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864655122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:02,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:02,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:17:02,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873597642] [2022-12-13 16:17:02,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:02,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:17:02,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:17:02,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:17:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:17:02,841 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 16:17:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:02,969 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2022-12-13 16:17:02,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:17:02,970 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 16:17:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:02,971 INFO L225 Difference]: With dead ends: 49 [2022-12-13 16:17:02,971 INFO L226 Difference]: Without dead ends: 40 [2022-12-13 16:17:02,972 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 16:17:02,973 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 16:17:02,974 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 16:17:02,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-13 16:17:02,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2022-12-13 16:17:02,981 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 16:17:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 16:17:02,982 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 16:17:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:02,983 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 16:17:02,983 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 16:17:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 16:17:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:17:02,984 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:02,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:02,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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)] Ended with exit code 0 [2022-12-13 16:17:03,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:03,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:17:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash -743724587, now seen corresponding path program 1 times [2022-12-13 16:17:03,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:17:03,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048068288] [2022-12-13 16:17:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:03,190 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 16:17:03,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:17:03,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:03,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:03,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 16:17:03,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:17:03,608 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 16:17:03,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:17:03,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:17:03,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048068288] [2022-12-13 16:17:03,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048068288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:03,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:03,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:17:03,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530536351] [2022-12-13 16:17:03,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:03,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:17:03,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:17:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:17:03,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:17:03,611 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 16:17:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:04,140 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-12-13 16:17:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:17:04,140 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 16:17:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:04,141 INFO L225 Difference]: With dead ends: 40 [2022-12-13 16:17:04,141 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 16:17:04,141 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 16:17:04,142 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 16:17:04,143 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 16:17:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 16:17:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-12-13 16:17:04,147 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 16:17:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 16:17:04,147 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 16:17:04,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:04,148 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 16:17:04,148 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 16:17:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 16:17:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:17:04,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:04,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:04,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:04,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:04,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:17:04,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:04,352 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times [2022-12-13 16:17:04,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:17:04,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375680350] [2022-12-13 16:17:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:04,354 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 16:17:04,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:17:04,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:04,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:17:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:04,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 16:17:04,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:17:06,922 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 16:17:06,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:17:22,600 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 16:17:22,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:17:22,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375680350] [2022-12-13 16:17:22,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375680350] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:17:22,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:17:22,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-12-13 16:17:22,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800511643] [2022-12-13 16:17:22,601 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:17:22,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 16:17:22,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:17:22,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 16:17:22,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=238, Unknown=5, NotChecked=0, Total=306 [2022-12-13 16:17:22,602 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 16:17:26,387 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 16:17:52,393 WARN L233 SmtUtils]: Spent 14.60s 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 16:18:25,471 WARN L233 SmtUtils]: Spent 14.87s 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 16:18:56,151 WARN L233 SmtUtils]: Spent 15.77s 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 16:19:20,095 WARN L233 SmtUtils]: Spent 17.94s 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 16:19:20,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:19:20,288 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-12-13 16:19:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 16:19:20,295 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 16:19:20,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:19:20,296 INFO L225 Difference]: With dead ends: 52 [2022-12-13 16:19:20,296 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 16:19:20,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 125.9s TimeCoverageRelationStatistics Valid=238, Invalid=672, Unknown=20, NotChecked=0, Total=930 [2022-12-13 16:19:20,297 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 45 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:19:20,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 271 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-12-13 16:19:20,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 16:19:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-12-13 16:19:20,302 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 16:19:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2022-12-13 16:19:20,303 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 12 [2022-12-13 16:19:20,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:19:20,303 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2022-12-13 16:19:20,303 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 16:19:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-12-13 16:19:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 16:19:20,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:19:20,304 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:19:20,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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)] Ended with exit code 0 [2022-12-13 16:19:20,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:19:20,506 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:19:20,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:19:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1911673028, now seen corresponding path program 1 times [2022-12-13 16:19:20,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:19:20,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105451039] [2022-12-13 16:19:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:19:20,509 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 16:19:20,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:19:20,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:19:20,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:19:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:19:23,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 16:19:23,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:19:57,973 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 16:19:57,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:21:37,606 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 16:21:37,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:21:37,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105451039] [2022-12-13 16:21:37,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105451039] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:21:37,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:21:37,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-12-13 16:21:37,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261655388] [2022-12-13 16:21:37,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:21:37,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 16:21:37,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:21:37,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 16:21:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=362, Unknown=18, NotChecked=0, Total=462 [2022-12-13 16:21:37,608 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 16:21:42,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 16:21:52,092 WARN L539 Checker$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 16:22:09,454 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 30 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:22:16,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 16:22:18,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:22:20,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 16:22:23,505 WARN L539 Checker$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 16:22:25,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:22:27,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:22:29,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:23:08,806 WARN L233 SmtUtils]: Spent 20.82s on a formula simplification. DAG size of input: 38 DAG size of output: 36 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:23:10,911 WARN L539 Checker$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 16:23:13,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:23:16,474 WARN L539 Checker$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 16:24:31,814 WARN L233 SmtUtils]: Spent 52.98s on a formula simplification. DAG size of input: 52 DAG size of output: 48 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:24:34,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:24:36,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 16:24:38,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:24:41,884 WARN L539 Checker$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 16:24:43,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:24:45,341 WARN L539 Checker$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 16:24:47,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 16:24:50,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:24:52,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:24:54,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:26:45,336 WARN L233 SmtUtils]: Spent 1.48m on a formula simplification. DAG size of input: 61 DAG size of output: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:26:47,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 16:26:50,256 WARN L539 Checker$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 16:26:52,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:28:31,777 WARN L233 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 70 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:28:40,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:28:42,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 16:28:44,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:28:46,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:31:06,461 WARN L233 SmtUtils]: Spent 1.91m on a formula simplification. DAG size of input: 73 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:31:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:31:28,826 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-12-13 16:31:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 16:31:28,841 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 16:31:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:31:28,842 INFO L225 Difference]: With dead ends: 53 [2022-12-13 16:31:28,842 INFO L226 Difference]: Without dead ends: 43 [2022-12-13 16:31:28,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 633.2s TimeCoverageRelationStatistics Valid=202, Invalid=802, Unknown=52, NotChecked=0, Total=1056 [2022-12-13 16:31:28,843 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:31:28,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 380 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 21 Unknown, 0 Unchecked, 75.2s Time] [2022-12-13 16:31:28,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-13 16:31:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-12-13 16:31:28,852 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 16:31:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-12-13 16:31:28,853 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2022-12-13 16:31:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:31:28,853 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-12-13 16:31:28,853 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 16:31:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-12-13 16:31:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 16:31:28,854 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:31:28,855 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:31:28,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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)] Ended with exit code 0 [2022-12-13 16:31:29,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:31:29,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:31:29,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:31:29,058 INFO L85 PathProgramCache]: Analyzing trace with hash 571830174, now seen corresponding path program 2 times [2022-12-13 16:31:29,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:31:29,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424383703] [2022-12-13 16:31:29,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:31:29,059 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 16:31:29,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:31:29,062 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:31:29,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e61a3b-bf85-4b25-843b-0d5ae8f1ce94/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 16:31:51,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:31:51,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:31:52,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 16:31:52,016 INFO L286 TraceCheckSpWp]: Computing forward predicates...