./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ --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 b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:53:00,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:53:00,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:53:00,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:53:00,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:53:00,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:53:00,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:53:00,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:53:00,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:53:00,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:53:00,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:53:00,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:53:00,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:53:00,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:53:00,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:53:00,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:53:00,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:53:00,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:53:00,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:53:00,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:53:00,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:53:00,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:53:01,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:53:01,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:53:01,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:53:01,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:53:01,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:53:01,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:53:01,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:53:01,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:53:01,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:53:01,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:53:01,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:53:01,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:53:01,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:53:01,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:53:01,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:53:01,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:53:01,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:53:01,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:53:01,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:53:01,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:53:01,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:53:01,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:53:01,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:53:01,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:53:01,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:53:01,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:53:01,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:53:01,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:53:01,079 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:53:01,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:53:01,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:53:01,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:53:01,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:53:01,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:53:01,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:53:01,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:53:01,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:53:01,081 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:53:01,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:53:01,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:53:01,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:53:01,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:53:01,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:53:01,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:53:01,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:01,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:53:01,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:53:01,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:53:01,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:53:01,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:53:01,085 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:53:01,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:53:01,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:53:01,086 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f [2022-10-17 10:53:01,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:53:01,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:53:01,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:53:01,396 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:53:01,396 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:53:01,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-10-17 10:53:01,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/63cd602c4/d9fc4378b54e4ef98af3cd6d81ebc9dd/FLAGb500d4ec5 [2022-10-17 10:53:01,954 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:53:01,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-10-17 10:53:01,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/63cd602c4/d9fc4378b54e4ef98af3cd6d81ebc9dd/FLAGb500d4ec5 [2022-10-17 10:53:02,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/63cd602c4/d9fc4378b54e4ef98af3cd6d81ebc9dd [2022-10-17 10:53:02,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:53:02,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:53:02,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:02,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:53:02,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:53:02,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5103f8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02, skipping insertion in model container [2022-10-17 10:53:02,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:53:02,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:53:02,668 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-10-17 10:53:02,701 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-10-17 10:53:02,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:02,717 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:53:02,747 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-10-17 10:53:02,763 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-10-17 10:53:02,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:02,796 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:53:02,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02 WrapperNode [2022-10-17 10:53:02,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:02,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:02,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:53:02,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:53:02,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,841 INFO L138 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-10-17 10:53:02,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:02,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:53:02,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:53:02,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:53:02,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:53:02,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:53:02,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:53:02,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:53:02,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (1/1) ... [2022-10-17 10:53:02,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:02,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:02,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:53:02,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:53:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:53:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:53:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:53:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:53:03,043 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:53:03,045 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:53:03,230 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:53:03,237 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:53:03,237 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:53:03,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:03 BoogieIcfgContainer [2022-10-17 10:53:03,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:53:03,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:53:03,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:53:03,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:53:03,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:53:02" (1/3) ... [2022-10-17 10:53:03,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630f8071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:03, skipping insertion in model container [2022-10-17 10:53:03,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:02" (2/3) ... [2022-10-17 10:53:03,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630f8071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:03, skipping insertion in model container [2022-10-17 10:53:03,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:03" (3/3) ... [2022-10-17 10:53:03,251 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_5.i [2022-10-17 10:53:03,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:53:03,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 10:53:03,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:53:03,337 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bd0aa86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:53:03,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 10:53:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:03,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:53:03,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:03,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:03,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-10-17 10:53:03,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:03,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175672070] [2022-10-17 10:53:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:03,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:03,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:03,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175672070] [2022-10-17 10:53:03,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175672070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:03,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:03,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:53:03,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295192327] [2022-10-17 10:53:03,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:03,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:53:03,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:03,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:53:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:53:03,580 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-10-17 10:53:03,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:03,614 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-10-17 10:53:03,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:53:03,616 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2022-10-17 10:53:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:03,625 INFO L225 Difference]: With dead ends: 47 [2022-10-17 10:53:03,625 INFO L226 Difference]: Without dead ends: 19 [2022-10-17 10:53:03,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:53:03,632 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:03,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:53:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-17 10:53:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-17 10:53:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-10-17 10:53:03,669 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-10-17 10:53:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:03,670 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-10-17 10:53:03,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-10-17 10:53:03,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-10-17 10:53:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:53:03,671 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:03,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:03,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:53:03,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:03,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:03,673 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-10-17 10:53:03,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:03,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354710190] [2022-10-17 10:53:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:03,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:53:03,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:53:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:53:03,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:53:03,742 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:53:03,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-10-17 10:53:03,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-10-17 10:53:03,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:53:03,760 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:53:03,763 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:53:03,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:53:03 BoogieIcfgContainer [2022-10-17 10:53:03,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:53:03,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:53:03,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:53:03,808 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:53:03,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:03" (3/4) ... [2022-10-17 10:53:03,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:53:03,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:53:03,817 INFO L158 Benchmark]: Toolchain (without parser) took 1373.96ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 62.0MB in the beginning and 58.7MB in the end (delta: 3.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-10-17 10:53:03,818 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:53:03,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.43ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 58.2MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:53:03,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.35ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 56.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:53:03,823 INFO L158 Benchmark]: Boogie Preprocessor took 30.44ms. Allocated memory is still 86.0MB. Free memory was 56.3MB in the beginning and 55.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:53:03,826 INFO L158 Benchmark]: RCFGBuilder took 366.15ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 54.9MB in the beginning and 83.3MB in the end (delta: -28.4MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-10-17 10:53:03,827 INFO L158 Benchmark]: TraceAbstraction took 563.38ms. Allocated memory is still 107.0MB. Free memory was 82.7MB in the beginning and 59.0MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-10-17 10:53:03,827 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 107.0MB. Free memory was 59.0MB in the beginning and 58.7MB in the end (delta: 343.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:53:03,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.43ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 58.2MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.35ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 56.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.44ms. Allocated memory is still 86.0MB. Free memory was 56.3MB in the beginning and 55.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 366.15ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 54.9MB in the beginning and 83.3MB in the end (delta: -28.4MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 563.38ms. Allocated memory is still 107.0MB. Free memory was 82.7MB in the beginning and 59.0MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 107.0MB. Free memory was 59.0MB in the beginning and 58.7MB in the end (delta: 343.5kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] 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)=53, x=53] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53, x=53] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=53] [L102] reach_error() VAL [IN=53] - 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-10-17 10:53:03,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/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_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ --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 b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:53:06,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:53:06,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:53:06,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:53:06,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:53:06,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:53:06,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:53:06,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:53:06,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:53:06,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:53:06,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:53:06,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:53:06,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:53:06,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:53:06,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:53:06,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:53:06,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:53:06,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:53:06,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:53:06,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:53:06,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:53:06,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:53:06,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:53:06,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:53:06,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:53:06,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:53:06,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:53:06,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:53:06,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:53:06,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:53:06,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:53:06,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:53:06,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:53:06,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:53:06,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:53:06,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:53:06,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:53:06,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:53:06,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:53:06,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:53:06,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:53:06,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-10-17 10:53:06,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:53:06,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:53:06,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:53:06,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:53:06,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:53:06,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:53:06,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:53:06,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:53:06,727 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:53:06,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:53:06,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:53:06,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:53:06,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:53:06,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:53:06,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:53:06,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:53:06,731 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:53:06,731 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:53:06,732 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:53:06,732 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:53:06,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:53:06,733 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:53:06,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:53:06,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:53:06,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:53:06,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:53:06,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:06,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:53:06,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:53:06,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:53:06,736 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:53:06,736 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:53:06,736 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:53:06,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:53:06,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:53:06,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:53:06,738 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3e6d6197033d1263350baa937a3f4840980ed64c6f14711d69f2cfe01c9814f [2022-10-17 10:53:07,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:53:07,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:53:07,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:53:07,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:53:07,201 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:53:07,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-10-17 10:53:07,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/4ee0133c6/1610b90b22524ac4a50c3d9c4c4fc229/FLAGae4141745 [2022-10-17 10:53:07,835 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:53:07,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i [2022-10-17 10:53:07,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/4ee0133c6/1610b90b22524ac4a50c3d9c4c4fc229/FLAGae4141745 [2022-10-17 10:53:08,184 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/data/4ee0133c6/1610b90b22524ac4a50c3d9c4c4fc229 [2022-10-17 10:53:08,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:53:08,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:53:08,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:08,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:53:08,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:53:08,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b410cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08, skipping insertion in model container [2022-10-17 10:53:08,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:53:08,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:53:08,452 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-10-17 10:53:08,503 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-10-17 10:53:08,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:08,557 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:53:08,588 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[1226,1239] [2022-10-17 10:53:08,603 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_8d9c1d35-1998-46ce-a3c7-968e378a10db/sv-benchmarks/c/combinations/gcd_2+newton_1_5.i[2820,2833] [2022-10-17 10:53:08,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:08,637 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:53:08,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08 WrapperNode [2022-10-17 10:53:08,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:08,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:08,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:53:08,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:53:08,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,685 INFO L138 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-10-17 10:53:08,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:08,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:53:08,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:53:08,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:53:08,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:53:08,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:53:08,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:53:08,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:53:08,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (1/1) ... [2022-10-17 10:53:08,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:08,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:08,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:53:08,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:53:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:53:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:53:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:53:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:53:08,956 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:53:08,958 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:53:15,516 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:53:15,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:53:15,524 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:53:15,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:15 BoogieIcfgContainer [2022-10-17 10:53:15,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:53:15,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:53:15,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:53:15,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:53:15,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:53:08" (1/3) ... [2022-10-17 10:53:15,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490a5d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:15, skipping insertion in model container [2022-10-17 10:53:15,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:08" (2/3) ... [2022-10-17 10:53:15,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490a5d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:15, skipping insertion in model container [2022-10-17 10:53:15,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:15" (3/3) ... [2022-10-17 10:53:15,537 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_5.i [2022-10-17 10:53:15,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:53:15,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 10:53:15,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:53:15,626 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bd5e3b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:53:15,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 10:53:15,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:53:15,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:15,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:15,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-10-17 10:53:15,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:53:15,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887144007] [2022-10-17 10:53:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:15,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:53:15,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:53:15,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:53:15,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:53:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:17,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:53:17,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:53:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:17,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:53:17,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:53:17,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887144007] [2022-10-17 10:53:17,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887144007] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:17,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:17,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:53:17,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745014076] [2022-10-17 10:53:17,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:17,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:53:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:53:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:53:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:53:17,149 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-10-17 10:53:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:17,168 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-10-17 10:53:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:53:17,171 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2022-10-17 10:53:17,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:17,180 INFO L225 Difference]: With dead ends: 47 [2022-10-17 10:53:17,180 INFO L226 Difference]: Without dead ends: 19 [2022-10-17 10:53:17,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:53:17,188 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:17,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:53:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-17 10:53:17,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-17 10:53:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-10-17 10:53:17,227 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-10-17 10:53:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:17,228 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-10-17 10:53:17,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-10-17 10:53:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-10-17 10:53:17,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:53:17,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:17,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:17,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:53:17,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:53:17,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:17,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:17,446 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-10-17 10:53:17,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:53:17,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008695557] [2022-10-17 10:53:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:17,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:53:17,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:53:17,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:53:17,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d9c1d35-1998-46ce-a3c7-968e378a10db/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:53:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:53:46,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.