./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_3_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c562931a6d05e325b28cce00e946abdf58c2b9fa526927c821e1aeeb79c8db9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:15:32,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:15:32,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:15:33,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:15:33,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:15:33,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:15:33,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:15:33,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:15:33,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:15:33,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:15:33,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:15:33,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:15:33,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:15:33,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:15:33,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:15:33,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:15:33,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:15:33,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:15:33,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:15:33,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:15:33,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:15:33,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:15:33,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:15:33,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:15:33,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:15:33,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:15:33,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:15:33,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:15:33,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:15:33,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:15:33,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:15:33,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:15:33,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:15:33,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:15:33,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:15:33,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:15:33,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:15:33,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:15:33,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:15:33,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:15:33,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:15:33,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:15:33,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:15:33,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:15:33,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:15:33,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:15:33,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:15:33,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:15:33,167 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:15:33,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:15:33,167 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:15:33,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:15:33,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:15:33,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:15:33,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:15:33,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:15:33,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:15:33,170 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:15:33,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:15:33,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:15:33,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:15:33,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:15:33,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:15:33,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:15:33,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:15:33,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:15:33,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:15:33,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:15:33,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:15:33,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:15:33,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:15:33,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:15:33,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:15:33,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:15:33,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c562931a6d05e325b28cce00e946abdf58c2b9fa526927c821e1aeeb79c8db9 [2021-11-22 15:15:33,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:15:33,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:15:33,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:15:33,498 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:15:33,499 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:15:33,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/gcd_4+newton_3_5.i [2021-11-22 15:15:33,571 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/53973fb57/c7cf1980dc4a4da4975f904e42317a2b/FLAGb826d6f67 [2021-11-22 15:15:34,088 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:15:34,089 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i [2021-11-22 15:15:34,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/53973fb57/c7cf1980dc4a4da4975f904e42317a2b/FLAGb826d6f67 [2021-11-22 15:15:34,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/53973fb57/c7cf1980dc4a4da4975f904e42317a2b [2021-11-22 15:15:34,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:15:34,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:15:34,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:15:34,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:15:34,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:15:34,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6598349d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34, skipping insertion in model container [2021-11-22 15:15:34,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:15:34,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:15:34,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[1224,1237] [2021-11-22 15:15:34,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[2848,2861] [2021-11-22 15:15:34,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:15:34,732 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:15:34,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[1224,1237] [2021-11-22 15:15:34,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[2848,2861] [2021-11-22 15:15:34,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:15:34,779 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:15:34,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34 WrapperNode [2021-11-22 15:15:34,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:15:34,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:15:34,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:15:34,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:15:34,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,859 INFO L137 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 113 [2021-11-22 15:15:34,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:15:34,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:15:34,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:15:34,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:15:34,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:15:34,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:15:34,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:15:34,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:15:34,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (1/1) ... [2021-11-22 15:15:34,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:15:34,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:15:34,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:15:35,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:15:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:15:35,135 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:15:35,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:15:35,341 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:15:35,349 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:15:35,364 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:15:35,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:35 BoogieIcfgContainer [2021-11-22 15:15:35,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:15:35,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:15:35,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:15:35,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:15:35,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:15:34" (1/3) ... [2021-11-22 15:15:35,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16612221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:15:35, skipping insertion in model container [2021-11-22 15:15:35,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:34" (2/3) ... [2021-11-22 15:15:35,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16612221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:15:35, skipping insertion in model container [2021-11-22 15:15:35,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:35" (3/3) ... [2021-11-22 15:15:35,398 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_3_5.i [2021-11-22 15:15:35,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:15:35,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-22 15:15:35,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:15:35,512 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:15:35,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-22 15:15:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 38 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:15:35,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:35,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:35,574 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-22 15:15:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:35,588 INFO L85 PathProgramCache]: Analyzing trace with hash -618860861, now seen corresponding path program 1 times [2021-11-22 15:15:35,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:35,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082367292] [2021-11-22 15:15:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:35,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:35,753 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:15:35,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512816129] [2021-11-22 15:15:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:35,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:15:35,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:15:35,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:15:35,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 15:15:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:35,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 15:15:35,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:15:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:36,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:15:36,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:36,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082367292] [2021-11-22 15:15:36,018 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:15:36,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512816129] [2021-11-22 15:15:36,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512816129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:36,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:36,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:36,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190245726] [2021-11-22 15:15:36,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:36,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:36,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:36,084 INFO L87 Difference]: Start difference. First operand has 39 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 38 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:36,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:36,158 INFO L93 Difference]: Finished difference Result 93 states and 117 transitions. [2021-11-22 15:15:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 15:15:36,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:36,174 INFO L225 Difference]: With dead ends: 93 [2021-11-22 15:15:36,174 INFO L226 Difference]: Without dead ends: 47 [2021-11-22 15:15:36,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:36,187 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 24 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:36,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 73 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-22 15:15:36,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2021-11-22 15:15:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2021-11-22 15:15:36,249 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 9 [2021-11-22 15:15:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:36,249 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2021-11-22 15:15:36,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2021-11-22 15:15:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 15:15:36,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:36,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:36,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:15:36,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-22 15:15:36,465 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-22 15:15:36,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:36,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1509996819, now seen corresponding path program 1 times [2021-11-22 15:15:36,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:36,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960422021] [2021-11-22 15:15:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:36,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:36,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:36,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960422021] [2021-11-22 15:15:36,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960422021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:36,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:36,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:36,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268388516] [2021-11-22 15:15:36,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:36,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:36,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:36,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:36,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:36,541 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. 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) [2021-11-22 15:15:36,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:36,561 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2021-11-22 15:15:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:36,562 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 [2021-11-22 15:15:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:36,563 INFO L225 Difference]: With dead ends: 50 [2021-11-22 15:15:36,564 INFO L226 Difference]: Without dead ends: 34 [2021-11-22 15:15:36,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:36,566 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:36,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 54 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-22 15:15:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-22 15:15:36,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:36,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-11-22 15:15:36,576 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2021-11-22 15:15:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:36,576 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-11-22 15:15:36,577 INFO L471 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) [2021-11-22 15:15:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-11-22 15:15:36,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 15:15:36,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:36,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:36,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:15:36,579 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-22 15:15:36,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:36,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2020088330, now seen corresponding path program 1 times [2021-11-22 15:15:36,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:36,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088210184] [2021-11-22 15:15:36,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:36,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:15:36,601 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:15:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:15:36,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:15:36,638 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:15:36,639 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-22 15:15:36,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-22 15:15:36,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-22 15:15:36,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-22 15:15:36,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:15:36,647 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-22 15:15:36,651 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:15:36,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:15:36 BoogieIcfgContainer [2021-11-22 15:15:36,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:15:36,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:15:36,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:15:36,682 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:15:36,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:35" (3/4) ... [2021-11-22 15:15:36,686 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:15:36,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:15:36,687 INFO L158 Benchmark]: Toolchain (without parser) took 2264.03ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 56.3MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:15:36,688 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:15:36,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.54ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 75.8MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:15:36,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.44ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:15:36,690 INFO L158 Benchmark]: Boogie Preprocessor took 74.23ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 72.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:15:36,691 INFO L158 Benchmark]: RCFGBuilder took 431.75ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 61.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:15:36,692 INFO L158 Benchmark]: TraceAbstraction took 1311.57ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 56.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-11-22 15:15:36,692 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 100.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:15:36,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.54ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 75.8MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.44ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.23ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 72.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.75ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 61.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1311.57ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 56.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 100.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 109]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 104. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=52, x=52] [L102] RET, EXPR f(x) [L102] CALL, EXPR fp(x) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=52, x=52] [L102] RET, EXPR fp(x) [L102] x = x - f(x)/fp(x) [L104] CALL, EXPR f(x) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=51, x=51] [L104] RET, EXPR f(x) [L104] CALL, EXPR fp(x) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=51, x=51] [L104] RET, EXPR fp(x) [L104] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=49] [L109] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 68 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 2 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 15:15:36,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c562931a6d05e325b28cce00e946abdf58c2b9fa526927c821e1aeeb79c8db9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:15:39,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:15:39,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:15:39,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:15:39,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:15:39,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:15:39,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:15:39,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:15:39,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:15:39,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:15:39,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:15:39,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:15:39,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:15:39,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:15:39,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:15:39,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:15:39,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:15:39,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:15:39,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:15:39,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:15:39,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:15:39,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:15:39,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:15:39,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:15:39,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:15:39,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:15:39,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:15:39,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:15:39,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:15:39,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:15:39,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:15:39,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:15:39,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:15:39,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:15:39,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:15:39,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:15:39,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:15:39,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:15:39,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:15:39,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:15:39,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:15:39,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 15:15:39,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:15:39,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:15:39,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:15:39,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:15:39,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:15:39,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:15:39,672 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:15:39,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:15:39,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:15:39,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:15:39,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:15:39,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:15:39,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:15:39,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:15:39,675 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:15:39,675 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:15:39,676 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:15:39,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:15:39,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:15:39,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:15:39,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:15:39,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:15:39,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:15:39,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:15:39,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:15:39,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:15:39,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:15:39,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:15:39,679 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:15:39,679 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:15:39,679 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:15:39,680 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:15:39,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:15:39,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:15:39,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:15:39,681 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c562931a6d05e325b28cce00e946abdf58c2b9fa526927c821e1aeeb79c8db9 [2021-11-22 15:15:40,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:15:40,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:15:40,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:15:40,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:15:40,195 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:15:40,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/gcd_4+newton_3_5.i [2021-11-22 15:15:40,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/e113116e5/7855bda7ede9498e9edf4058362fee63/FLAG6a882c1b4 [2021-11-22 15:15:40,919 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:15:40,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i [2021-11-22 15:15:40,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/e113116e5/7855bda7ede9498e9edf4058362fee63/FLAG6a882c1b4 [2021-11-22 15:15:41,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/data/e113116e5/7855bda7ede9498e9edf4058362fee63 [2021-11-22 15:15:41,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:15:41,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:15:41,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:15:41,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:15:41,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:15:41,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fd0b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41, skipping insertion in model container [2021-11-22 15:15:41,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:15:41,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:15:41,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[1224,1237] [2021-11-22 15:15:41,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[2848,2861] [2021-11-22 15:15:41,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:15:41,521 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:15:41,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[1224,1237] [2021-11-22 15:15:41,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/sv-benchmarks/c/combinations/gcd_4+newton_3_5.i[2848,2861] [2021-11-22 15:15:41,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:15:41,602 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:15:41,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41 WrapperNode [2021-11-22 15:15:41,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:15:41,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:15:41,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:15:41,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:15:41,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,708 INFO L137 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 110 [2021-11-22 15:15:41,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:15:41,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:15:41,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:15:41,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:15:41,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:15:41,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:15:41,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:15:41,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:15:41,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (1/1) ... [2021-11-22 15:15:41,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:15:41,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:15:41,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:15:41,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:15:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:15:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 15:15:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:15:41,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:15:41,937 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:15:41,939 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:15:58,107 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:15:58,113 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:15:58,113 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:15:58,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:58 BoogieIcfgContainer [2021-11-22 15:15:58,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:15:58,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:15:58,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:15:58,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:15:58,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:15:41" (1/3) ... [2021-11-22 15:15:58,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a256c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:15:58, skipping insertion in model container [2021-11-22 15:15:58,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:15:41" (2/3) ... [2021-11-22 15:15:58,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a256c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:15:58, skipping insertion in model container [2021-11-22 15:15:58,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:15:58" (3/3) ... [2021-11-22 15:15:58,125 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_3_5.i [2021-11-22 15:15:58,131 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:15:58,132 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-22 15:15:58,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:15:58,193 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:15:58,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-22 15:15:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 38 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:15:58,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:58,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:58,215 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-22 15:15:58,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:58,221 INFO L85 PathProgramCache]: Analyzing trace with hash -618860861, now seen corresponding path program 1 times [2021-11-22 15:15:58,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:15:58,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728277135] [2021-11-22 15:15:58,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:58,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:15:58,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:15:58,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:15:58,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:15:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:58,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 15:15:58,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:15:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:58,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:15:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:58,652 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:15:58,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728277135] [2021-11-22 15:15:58,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728277135] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:58,654 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:58,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:15:58,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164574699] [2021-11-22 15:15:58,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:58,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:15:58,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:15:58,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:15:58,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:15:58,697 INFO L87 Difference]: Start difference. First operand has 39 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 38 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2021-11-22 15:15:58,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:58,844 INFO L93 Difference]: Finished difference Result 93 states and 117 transitions. [2021-11-22 15:15:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:58,859 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 9 [2021-11-22 15:15:58,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:58,868 INFO L225 Difference]: With dead ends: 93 [2021-11-22 15:15:58,868 INFO L226 Difference]: Without dead ends: 47 [2021-11-22 15:15:58,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:15:58,876 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 24 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:58,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 107 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:15:58,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-22 15:15:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2021-11-22 15:15:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:58,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2021-11-22 15:15:58,914 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 9 [2021-11-22 15:15:58,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:58,915 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2021-11-22 15:15:58,915 INFO L471 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) [2021-11-22 15:15:58,915 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2021-11-22 15:15:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 15:15:58,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:58,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:58,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:15:59,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:15:59,130 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-22 15:15:59,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1509996819, now seen corresponding path program 1 times [2021-11-22 15:15:59,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:15:59,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201403793] [2021-11-22 15:15:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:59,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:15:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:15:59,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:15:59,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:15:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:59,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 15:15:59,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:15:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:59,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:15:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:59,639 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:15:59,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201403793] [2021-11-22 15:15:59,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201403793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:59,648 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:59,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:15:59,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378349439] [2021-11-22 15:15:59,649 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:59,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:15:59,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:15:59,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:15:59,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:15:59,652 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:59,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:59,753 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-11-22 15:15:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:15:59,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 [2021-11-22 15:15:59,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:59,755 INFO L225 Difference]: With dead ends: 51 [2021-11-22 15:15:59,755 INFO L226 Difference]: Without dead ends: 35 [2021-11-22 15:15:59,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:15:59,758 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:59,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:15:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-22 15:15:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-11-22 15:15:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-11-22 15:15:59,768 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2021-11-22 15:15:59,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:59,769 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-11-22 15:15:59,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:15:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-22 15:15:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 15:15:59,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:59,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:59,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:15:59,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:15:59,985 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-22 15:15:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2020088330, now seen corresponding path program 1 times [2021-11-22 15:15:59,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:15:59,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739693487] [2021-11-22 15:15:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:59,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:15:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:15:59,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:15:59,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9e7fa6d-34c8-4760-a144-1df03f4f6b98/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process