./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3e65a9c88991657ab2059827ecd5dfb9aad85be ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:52:03,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:52:03,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:52:03,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:52:03,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:52:03,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:52:03,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:52:03,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:52:03,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:52:03,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:52:03,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:52:03,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:52:03,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:52:03,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:52:03,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:52:03,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:52:03,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:52:03,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:52:03,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:52:03,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:52:03,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:52:03,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:52:03,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:52:03,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:52:03,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:52:03,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:52:03,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:52:03,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:52:03,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:52:03,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:52:03,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:52:03,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:52:03,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:52:03,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:52:03,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:52:03,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:52:03,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:52:03,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:52:03,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:52:03,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:52:03,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:52:03,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-15 19:52:03,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:52:03,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:52:03,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:52:03,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:52:03,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:52:03,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:52:03,931 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:52:03,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:52:03,931 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:52:03,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:52:03,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:52:03,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:52:03,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:52:03,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:52:03,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:52:03,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:52:03,933 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-15 19:52:03,933 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:52:03,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:52:03,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:52:03,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:52:03,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:52:03,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:52:03,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:52:03,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:52:03,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:52:03,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:52:03,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:52:03,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:52:03,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:52:03,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:52:03,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:52:03,936 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_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e65a9c88991657ab2059827ecd5dfb9aad85be [2021-10-15 19:52:04,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:52:04,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:52:04,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:52:04,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:52:04,211 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:52:04,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-10-15 19:52:04,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/data/31e5d84d4/a2ab9bf722814aaa86da04959eea9c6d/FLAG1c000c30e [2021-10-15 19:52:04,747 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:52:04,748 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-10-15 19:52:04,758 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/data/31e5d84d4/a2ab9bf722814aaa86da04959eea9c6d/FLAG1c000c30e [2021-10-15 19:52:05,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/data/31e5d84d4/a2ab9bf722814aaa86da04959eea9c6d [2021-10-15 19:52:05,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:52:05,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:52:05,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:52:05,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:52:05,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:52:05,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9c76f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05, skipping insertion in model container [2021-10-15 19:52:05,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:52:05,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:52:05,349 WARN L228 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_86d8718e-4a1a-46c6-8a66-9f7a14485b28/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[450,463] [2021-10-15 19:52:05,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:52:05,408 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:52:05,420 WARN L228 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_86d8718e-4a1a-46c6-8a66-9f7a14485b28/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[450,463] [2021-10-15 19:52:05,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:52:05,472 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:52:05,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05 WrapperNode [2021-10-15 19:52:05,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:52:05,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:52:05,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:52:05,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:52:05,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:52:05,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:52:05,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:52:05,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:52:05,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:52:05,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:52:05,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:52:05,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:52:05,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (1/1) ... [2021-10-15 19:52:05,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:52:05,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:05,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:52:05,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:52:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:52:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:52:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:52:05,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:52:06,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:52:06,308 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-15 19:52:06,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:52:06 BoogieIcfgContainer [2021-10-15 19:52:06,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:52:06,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:52:06,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:52:06,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:52:06,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:52:05" (1/3) ... [2021-10-15 19:52:06,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d62d29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:52:06, skipping insertion in model container [2021-10-15 19:52:06,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:52:05" (2/3) ... [2021-10-15 19:52:06,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d62d29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:52:06, skipping insertion in model container [2021-10-15 19:52:06,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:52:06" (3/3) ... [2021-10-15 19:52:06,326 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2021-10-15 19:52:06,331 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:52:06,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-10-15 19:52:06,375 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:52:06,381 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-15 19:52:06,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-10-15 19:52:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 143 states have internal predecessors, (202), 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) [2021-10-15 19:52:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-15 19:52:06,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:06,404 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:06,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:06,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:06,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-10-15 19:52:06,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:06,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785708787] [2021-10-15 19:52:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:06,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:06,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:06,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785708787] [2021-10-15 19:52:06,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785708787] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:06,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:06,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:52:06,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906428530] [2021-10-15 19:52:06,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:52:06,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:06,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:52:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:52:06,620 INFO L87 Difference]: Start difference. First operand has 144 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 143 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-15 19:52:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:06,689 INFO L93 Difference]: Finished difference Result 268 states and 376 transitions. [2021-10-15 19:52:06,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:52:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-15 19:52:06,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:06,699 INFO L225 Difference]: With dead ends: 268 [2021-10-15 19:52:06,699 INFO L226 Difference]: Without dead ends: 107 [2021-10-15 19:52:06,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:52:06,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-15 19:52:06,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-15 19:52:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 81 states have (on average 1.6049382716049383) internal successors, (130), 106 states have internal predecessors, (130), 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) [2021-10-15 19:52:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2021-10-15 19:52:06,761 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 7 [2021-10-15 19:52:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:06,762 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2021-10-15 19:52:06,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-15 19:52:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2021-10-15 19:52:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-15 19:52:06,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:06,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:06,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:52:06,765 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:06,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:06,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-10-15 19:52:06,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:06,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573411089] [2021-10-15 19:52:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:06,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:06,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:06,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573411089] [2021-10-15 19:52:06,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573411089] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:06,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:06,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:52:06,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81273790] [2021-10-15 19:52:06,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:52:06,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:06,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:52:06,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:52:06,844 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-15 19:52:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:06,965 INFO L93 Difference]: Finished difference Result 211 states and 254 transitions. [2021-10-15 19:52:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:52:06,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-10-15 19:52:06,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:06,967 INFO L225 Difference]: With dead ends: 211 [2021-10-15 19:52:06,968 INFO L226 Difference]: Without dead ends: 121 [2021-10-15 19:52:06,969 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:52:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-15 19:52:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2021-10-15 19:52:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.5376344086021505) internal successors, (143), 118 states have internal predecessors, (143), 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) [2021-10-15 19:52:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 143 transitions. [2021-10-15 19:52:06,980 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 143 transitions. Word has length 7 [2021-10-15 19:52:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:06,981 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 143 transitions. [2021-10-15 19:52:06,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-15 19:52:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 143 transitions. [2021-10-15 19:52:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-15 19:52:06,982 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:06,982 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:06,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:52:06,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:06,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:06,983 INFO L82 PathProgramCache]: Analyzing trace with hash -866677448, now seen corresponding path program 1 times [2021-10-15 19:52:06,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:06,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073822578] [2021-10-15 19:52:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:06,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:07,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:07,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073822578] [2021-10-15 19:52:07,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073822578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:07,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:07,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:52:07,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273708996] [2021-10-15 19:52:07,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:07,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:07,083 INFO L87 Difference]: Start difference. First operand 119 states and 143 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-15 19:52:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:07,227 INFO L93 Difference]: Finished difference Result 172 states and 205 transitions. [2021-10-15 19:52:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:07,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-10-15 19:52:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:07,234 INFO L225 Difference]: With dead ends: 172 [2021-10-15 19:52:07,234 INFO L226 Difference]: Without dead ends: 165 [2021-10-15 19:52:07,237 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:52:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-10-15 19:52:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 120. [2021-10-15 19:52:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 119 states have internal predecessors, (145), 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) [2021-10-15 19:52:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 145 transitions. [2021-10-15 19:52:07,259 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 145 transitions. Word has length 10 [2021-10-15 19:52:07,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:07,260 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 145 transitions. [2021-10-15 19:52:07,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-15 19:52:07,260 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 145 transitions. [2021-10-15 19:52:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-15 19:52:07,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:07,262 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:07,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:52:07,263 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:07,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:07,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1097196978, now seen corresponding path program 1 times [2021-10-15 19:52:07,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:07,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738648182] [2021-10-15 19:52:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:07,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:07,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:07,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738648182] [2021-10-15 19:52:07,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738648182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:07,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:07,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:52:07,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679591843] [2021-10-15 19:52:07,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:52:07,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:07,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:52:07,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:52:07,329 INFO L87 Difference]: Start difference. First operand 120 states and 145 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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) [2021-10-15 19:52:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:07,389 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2021-10-15 19:52:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:52:07,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) 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 [2021-10-15 19:52:07,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:07,391 INFO L225 Difference]: With dead ends: 164 [2021-10-15 19:52:07,391 INFO L226 Difference]: Without dead ends: 159 [2021-10-15 19:52:07,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:52:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-15 19:52:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 112. [2021-10-15 19:52:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 111 states have internal predecessors, (137), 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) [2021-10-15 19:52:07,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 137 transitions. [2021-10-15 19:52:07,403 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 137 transitions. Word has length 11 [2021-10-15 19:52:07,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:07,403 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 137 transitions. [2021-10-15 19:52:07,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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) [2021-10-15 19:52:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 137 transitions. [2021-10-15 19:52:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-15 19:52:07,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:07,405 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:07,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:52:07,405 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:07,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1234080256, now seen corresponding path program 1 times [2021-10-15 19:52:07,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:07,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781669890] [2021-10-15 19:52:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:07,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:07,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:07,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781669890] [2021-10-15 19:52:07,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781669890] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:07,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:07,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:52:07,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905307425] [2021-10-15 19:52:07,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:07,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:07,450 INFO L87 Difference]: Start difference. First operand 112 states and 137 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-15 19:52:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:07,556 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2021-10-15 19:52:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-15 19:52:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:07,558 INFO L225 Difference]: With dead ends: 160 [2021-10-15 19:52:07,558 INFO L226 Difference]: Without dead ends: 158 [2021-10-15 19:52:07,559 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:52:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-15 19:52:07,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 114. [2021-10-15 19:52:07,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 98 states have (on average 1.4183673469387754) internal successors, (139), 113 states have internal predecessors, (139), 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) [2021-10-15 19:52:07,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2021-10-15 19:52:07,569 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 12 [2021-10-15 19:52:07,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:07,570 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2021-10-15 19:52:07,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-15 19:52:07,570 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2021-10-15 19:52:07,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-15 19:52:07,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:07,571 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:07,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 19:52:07,572 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:07,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-10-15 19:52:07,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:07,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927752818] [2021-10-15 19:52:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:07,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:07,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:07,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:07,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927752818] [2021-10-15 19:52:07,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927752818] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:07,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:07,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:52:07,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199029469] [2021-10-15 19:52:07,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:07,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:07,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:07,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:07,616 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-15 19:52:07,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:07,714 INFO L93 Difference]: Finished difference Result 257 states and 307 transitions. [2021-10-15 19:52:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-15 19:52:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:07,719 INFO L225 Difference]: With dead ends: 257 [2021-10-15 19:52:07,719 INFO L226 Difference]: Without dead ends: 171 [2021-10-15 19:52:07,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-10-15 19:52:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 119. [2021-10-15 19:52:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 118 states have internal predecessors, (145), 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) [2021-10-15 19:52:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2021-10-15 19:52:07,742 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 12 [2021-10-15 19:52:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:07,743 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2021-10-15 19:52:07,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-15 19:52:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2021-10-15 19:52:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-15 19:52:07,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:07,744 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:07,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-15 19:52:07,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:07,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-10-15 19:52:07,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:07,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596656372] [2021-10-15 19:52:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:07,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:07,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:07,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596656372] [2021-10-15 19:52:07,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596656372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:07,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:07,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:52:07,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422462429] [2021-10-15 19:52:07,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:07,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:07,826 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-15 19:52:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:07,909 INFO L93 Difference]: Finished difference Result 169 states and 203 transitions. [2021-10-15 19:52:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:07,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-10-15 19:52:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:07,912 INFO L225 Difference]: With dead ends: 169 [2021-10-15 19:52:07,912 INFO L226 Difference]: Without dead ends: 167 [2021-10-15 19:52:07,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:52:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-10-15 19:52:07,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 122. [2021-10-15 19:52:07,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 121 states have internal predecessors, (149), 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) [2021-10-15 19:52:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2021-10-15 19:52:07,928 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 13 [2021-10-15 19:52:07,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:07,928 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2021-10-15 19:52:07,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-15 19:52:07,929 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2021-10-15 19:52:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-15 19:52:07,934 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:07,934 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:07,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-15 19:52:07,935 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:07,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:07,935 INFO L82 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-10-15 19:52:07,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:07,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665818054] [2021-10-15 19:52:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:07,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:08,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:08,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665818054] [2021-10-15 19:52:08,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665818054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:52:08,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762843409] [2021-10-15 19:52:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:08,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:52:08,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:52:08,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:52:08,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 19:52:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:08,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 19:52:08,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:52:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:08,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762843409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:08,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-15 19:52:08,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-15 19:52:08,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863475935] [2021-10-15 19:52:08,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:08,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:08,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:08,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:52:08,221 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-15 19:52:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:08,344 INFO L93 Difference]: Finished difference Result 209 states and 249 transitions. [2021-10-15 19:52:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-10-15 19:52:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:08,347 INFO L225 Difference]: With dead ends: 209 [2021-10-15 19:52:08,347 INFO L226 Difference]: Without dead ends: 206 [2021-10-15 19:52:08,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:52:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-15 19:52:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 109. [2021-10-15 19:52:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 108 states have internal predecessors, (134), 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) [2021-10-15 19:52:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2021-10-15 19:52:08,357 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 13 [2021-10-15 19:52:08,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:08,358 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2021-10-15 19:52:08,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-15 19:52:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2021-10-15 19:52:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-15 19:52:08,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:08,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:08,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:52:08,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:52:08,581 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:08,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:08,581 INFO L82 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-10-15 19:52:08,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:08,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529975953] [2021-10-15 19:52:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:08,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:08,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:08,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529975953] [2021-10-15 19:52:08,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529975953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:08,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:08,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:52:08,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046438155] [2021-10-15 19:52:08,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:08,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:08,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:08,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:08,666 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:08,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:08,742 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2021-10-15 19:52:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:08,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-15 19:52:08,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:08,745 INFO L225 Difference]: With dead ends: 160 [2021-10-15 19:52:08,745 INFO L226 Difference]: Without dead ends: 158 [2021-10-15 19:52:08,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:52:08,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-15 19:52:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 111. [2021-10-15 19:52:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.36) internal successors, (136), 110 states have internal predecessors, (136), 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) [2021-10-15 19:52:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2021-10-15 19:52:08,755 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 15 [2021-10-15 19:52:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:08,756 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2021-10-15 19:52:08,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2021-10-15 19:52:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-15 19:52:08,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:08,759 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:08,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-15 19:52:08,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:08,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1418335763, now seen corresponding path program 1 times [2021-10-15 19:52:08,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:08,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402228148] [2021-10-15 19:52:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:08,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:08,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:08,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402228148] [2021-10-15 19:52:08,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402228148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:08,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:08,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:52:08,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038728157] [2021-10-15 19:52:08,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:52:08,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:52:08,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:08,835 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:08,927 INFO L93 Difference]: Finished difference Result 200 states and 237 transitions. [2021-10-15 19:52:08,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:52:08,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-15 19:52:08,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:08,929 INFO L225 Difference]: With dead ends: 200 [2021-10-15 19:52:08,929 INFO L226 Difference]: Without dead ends: 197 [2021-10-15 19:52:08,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:52:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-15 19:52:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 99. [2021-10-15 19:52:08,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 98 states have internal predecessors, (124), 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) [2021-10-15 19:52:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2021-10-15 19:52:08,940 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 15 [2021-10-15 19:52:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:08,940 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2021-10-15 19:52:08,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:52:08,941 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2021-10-15 19:52:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-15 19:52:08,941 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:08,941 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:08,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-15 19:52:08,942 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:08,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:08,943 INFO L82 PathProgramCache]: Analyzing trace with hash 367470027, now seen corresponding path program 1 times [2021-10-15 19:52:08,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:08,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320551379] [2021-10-15 19:52:08,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:08,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:09,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:09,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320551379] [2021-10-15 19:52:09,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320551379] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:09,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:09,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-15 19:52:09,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096423422] [2021-10-15 19:52:09,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-15 19:52:09,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:09,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 19:52:09,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-15 19:52:09,068 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-15 19:52:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:09,238 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2021-10-15 19:52:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-15 19:52:09,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2021-10-15 19:52:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:09,240 INFO L225 Difference]: With dead ends: 266 [2021-10-15 19:52:09,240 INFO L226 Difference]: Without dead ends: 230 [2021-10-15 19:52:09,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 65.1ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-10-15 19:52:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-15 19:52:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 129. [2021-10-15 19:52:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 121 states have (on average 1.3471074380165289) internal successors, (163), 128 states have internal predecessors, (163), 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) [2021-10-15 19:52:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2021-10-15 19:52:09,252 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 163 transitions. Word has length 18 [2021-10-15 19:52:09,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:09,254 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 163 transitions. [2021-10-15 19:52:09,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-15 19:52:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 163 transitions. [2021-10-15 19:52:09,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-15 19:52:09,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:09,256 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:09,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-15 19:52:09,256 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:09,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:09,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1008645611, now seen corresponding path program 1 times [2021-10-15 19:52:09,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:09,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931279553] [2021-10-15 19:52:09,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:09,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:09,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:09,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:09,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931279553] [2021-10-15 19:52:09,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931279553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:09,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:09,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-15 19:52:09,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814745661] [2021-10-15 19:52:09,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 19:52:09,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:09,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:52:09,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:52:09,391 INFO L87 Difference]: Start difference. First operand 129 states and 163 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-10-15 19:52:09,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:09,478 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2021-10-15 19:52:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:52:09,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-15 19:52:09,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:09,480 INFO L225 Difference]: With dead ends: 190 [2021-10-15 19:52:09,480 INFO L226 Difference]: Without dead ends: 131 [2021-10-15 19:52:09,481 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-15 19:52:09,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-15 19:52:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-10-15 19:52:09,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 121 states have (on average 1.3140495867768596) internal successors, (159), 128 states have internal predecessors, (159), 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) [2021-10-15 19:52:09,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2021-10-15 19:52:09,491 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 20 [2021-10-15 19:52:09,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:09,491 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2021-10-15 19:52:09,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-10-15 19:52:09,492 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2021-10-15 19:52:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-15 19:52:09,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:09,493 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:09,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-15 19:52:09,493 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:09,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:09,494 INFO L82 PathProgramCache]: Analyzing trace with hash 28946906, now seen corresponding path program 1 times [2021-10-15 19:52:09,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:09,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719160281] [2021-10-15 19:52:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:09,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:09,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:09,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719160281] [2021-10-15 19:52:09,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719160281] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:09,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:09,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-15 19:52:09,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497462051] [2021-10-15 19:52:09,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-15 19:52:09,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:09,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 19:52:09,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-15 19:52:09,612 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-10-15 19:52:09,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:09,797 INFO L93 Difference]: Finished difference Result 246 states and 286 transitions. [2021-10-15 19:52:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:52:09,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2021-10-15 19:52:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:09,799 INFO L225 Difference]: With dead ends: 246 [2021-10-15 19:52:09,800 INFO L226 Difference]: Without dead ends: 211 [2021-10-15 19:52:09,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.6ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:52:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-15 19:52:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 157. [2021-10-15 19:52:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 149 states have (on average 1.3020134228187918) internal successors, (194), 156 states have internal predecessors, (194), 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) [2021-10-15 19:52:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 194 transitions. [2021-10-15 19:52:09,814 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 194 transitions. Word has length 24 [2021-10-15 19:52:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:09,814 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 194 transitions. [2021-10-15 19:52:09,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-10-15 19:52:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 194 transitions. [2021-10-15 19:52:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-15 19:52:09,815 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:09,816 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:09,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-15 19:52:09,816 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:09,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1112635696, now seen corresponding path program 1 times [2021-10-15 19:52:09,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:09,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022966451] [2021-10-15 19:52:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:09,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:09,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:09,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022966451] [2021-10-15 19:52:09,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022966451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:09,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:09,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-15 19:52:09,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946018827] [2021-10-15 19:52:09,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-15 19:52:09,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:09,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 19:52:09,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-15 19:52:09,934 INFO L87 Difference]: Start difference. First operand 157 states and 194 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2021-10-15 19:52:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:10,019 INFO L93 Difference]: Finished difference Result 185 states and 222 transitions. [2021-10-15 19:52:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 19:52:10,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 26 [2021-10-15 19:52:10,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:10,021 INFO L225 Difference]: With dead ends: 185 [2021-10-15 19:52:10,021 INFO L226 Difference]: Without dead ends: 116 [2021-10-15 19:52:10,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:52:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-15 19:52:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-10-15 19:52:10,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.320754716981132) internal successors, (140), 113 states have internal predecessors, (140), 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) [2021-10-15 19:52:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2021-10-15 19:52:10,031 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 26 [2021-10-15 19:52:10,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:10,031 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2021-10-15 19:52:10,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2021-10-15 19:52:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2021-10-15 19:52:10,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-15 19:52:10,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:10,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:10,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-15 19:52:10,033 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:10,034 INFO L82 PathProgramCache]: Analyzing trace with hash 479159525, now seen corresponding path program 1 times [2021-10-15 19:52:10,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:10,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112264293] [2021-10-15 19:52:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:10,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:10,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:10,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112264293] [2021-10-15 19:52:10,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112264293] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:10,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:10,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:52:10,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902576769] [2021-10-15 19:52:10,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:52:10,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:10,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:52:10,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:52:10,105 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-10-15 19:52:10,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:10,177 INFO L93 Difference]: Finished difference Result 244 states and 294 transitions. [2021-10-15 19:52:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:52:10,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-10-15 19:52:10,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:10,180 INFO L225 Difference]: With dead ends: 244 [2021-10-15 19:52:10,180 INFO L226 Difference]: Without dead ends: 201 [2021-10-15 19:52:10,180 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:52:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-10-15 19:52:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 157. [2021-10-15 19:52:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 156 states have internal predecessors, (192), 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) [2021-10-15 19:52:10,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2021-10-15 19:52:10,195 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 28 [2021-10-15 19:52:10,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:10,196 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2021-10-15 19:52:10,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-10-15 19:52:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2021-10-15 19:52:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-15 19:52:10,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:10,197 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:10,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-15 19:52:10,198 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:10,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:10,198 INFO L82 PathProgramCache]: Analyzing trace with hash -2129165813, now seen corresponding path program 1 times [2021-10-15 19:52:10,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:10,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4540988] [2021-10-15 19:52:10,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:10,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:10,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:10,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4540988] [2021-10-15 19:52:10,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4540988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:10,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:10,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-15 19:52:10,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696402522] [2021-10-15 19:52:10,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 19:52:10,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:10,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:52:10,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:52:10,292 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-10-15 19:52:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:10,464 INFO L93 Difference]: Finished difference Result 346 states and 407 transitions. [2021-10-15 19:52:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-15 19:52:10,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2021-10-15 19:52:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:10,467 INFO L225 Difference]: With dead ends: 346 [2021-10-15 19:52:10,467 INFO L226 Difference]: Without dead ends: 303 [2021-10-15 19:52:10,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-15 19:52:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-10-15 19:52:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 223. [2021-10-15 19:52:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 222 states have internal predecessors, (272), 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) [2021-10-15 19:52:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 272 transitions. [2021-10-15 19:52:10,489 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 272 transitions. Word has length 30 [2021-10-15 19:52:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:10,490 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 272 transitions. [2021-10-15 19:52:10,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-10-15 19:52:10,490 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 272 transitions. [2021-10-15 19:52:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-15 19:52:10,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:10,491 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:10,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-15 19:52:10,492 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:10,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:10,492 INFO L82 PathProgramCache]: Analyzing trace with hash -689181099, now seen corresponding path program 1 times [2021-10-15 19:52:10,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:10,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073147918] [2021-10-15 19:52:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:10,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:10,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:10,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073147918] [2021-10-15 19:52:10,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073147918] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:10,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:10,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-15 19:52:10,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889785907] [2021-10-15 19:52:10,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-15 19:52:10,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:10,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-15 19:52:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-15 19:52:10,624 INFO L87 Difference]: Start difference. First operand 223 states and 272 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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) [2021-10-15 19:52:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:10,826 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2021-10-15 19:52:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 19:52:10,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2021-10-15 19:52:10,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:10,830 INFO L225 Difference]: With dead ends: 275 [2021-10-15 19:52:10,830 INFO L226 Difference]: Without dead ends: 274 [2021-10-15 19:52:10,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 111.7ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-15 19:52:10,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-15 19:52:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 223. [2021-10-15 19:52:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 222 states have internal predecessors, (272), 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) [2021-10-15 19:52:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 272 transitions. [2021-10-15 19:52:10,852 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 272 transitions. Word has length 32 [2021-10-15 19:52:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:10,852 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 272 transitions. [2021-10-15 19:52:10,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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) [2021-10-15 19:52:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 272 transitions. [2021-10-15 19:52:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-15 19:52:10,853 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:10,854 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:10,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-15 19:52:10,854 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:10,855 INFO L82 PathProgramCache]: Analyzing trace with hash -689121517, now seen corresponding path program 1 times [2021-10-15 19:52:10,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:10,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908377896] [2021-10-15 19:52:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:10,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:11,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:11,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:11,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908377896] [2021-10-15 19:52:11,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908377896] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:11,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:11,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-15 19:52:11,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234178939] [2021-10-15 19:52:11,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-15 19:52:11,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:11,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-15 19:52:11,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-15 19:52:11,114 INFO L87 Difference]: Start difference. First operand 223 states and 272 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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) [2021-10-15 19:52:11,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:11,427 INFO L93 Difference]: Finished difference Result 274 states and 322 transitions. [2021-10-15 19:52:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 19:52:11,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2021-10-15 19:52:11,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:11,430 INFO L225 Difference]: With dead ends: 274 [2021-10-15 19:52:11,430 INFO L226 Difference]: Without dead ends: 273 [2021-10-15 19:52:11,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 235.7ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-15 19:52:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-10-15 19:52:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 220. [2021-10-15 19:52:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 212 states have (on average 1.2641509433962264) internal successors, (268), 219 states have internal predecessors, (268), 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) [2021-10-15 19:52:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2021-10-15 19:52:11,451 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 32 [2021-10-15 19:52:11,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:11,452 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2021-10-15 19:52:11,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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) [2021-10-15 19:52:11,453 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2021-10-15 19:52:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-15 19:52:11,453 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:11,454 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:11,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-15 19:52:11,454 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:11,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:11,456 INFO L82 PathProgramCache]: Analyzing trace with hash 376523311, now seen corresponding path program 1 times [2021-10-15 19:52:11,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:11,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496362184] [2021-10-15 19:52:11,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:11,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:52:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:52:11,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:52:11,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496362184] [2021-10-15 19:52:11,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496362184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:52:11,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:52:11,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-15 19:52:11,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522193505] [2021-10-15 19:52:11,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-15 19:52:11,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:52:11,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 19:52:11,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:52:11,752 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 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) [2021-10-15 19:52:12,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:52:12,146 INFO L93 Difference]: Finished difference Result 277 states and 324 transitions. [2021-10-15 19:52:12,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-15 19:52:12,147 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 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) Word has length 34 [2021-10-15 19:52:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:52:12,148 INFO L225 Difference]: With dead ends: 277 [2021-10-15 19:52:12,149 INFO L226 Difference]: Without dead ends: 276 [2021-10-15 19:52:12,149 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.7ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-10-15 19:52:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-10-15 19:52:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 222. [2021-10-15 19:52:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 214 states have (on average 1.2616822429906542) internal successors, (270), 221 states have internal predecessors, (270), 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) [2021-10-15 19:52:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 270 transitions. [2021-10-15 19:52:12,169 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 270 transitions. Word has length 34 [2021-10-15 19:52:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:52:12,169 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 270 transitions. [2021-10-15 19:52:12,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 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) [2021-10-15 19:52:12,169 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 270 transitions. [2021-10-15 19:52:12,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-15 19:52:12,170 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:52:12,171 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:52:12,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-15 19:52:12,171 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-15 19:52:12,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:52:12,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1316923839, now seen corresponding path program 1 times [2021-10-15 19:52:12,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:52:12,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284629515] [2021-10-15 19:52:12,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:52:12,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:52:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:12,192 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:52:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:52:12,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:52:12,246 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:52:12,247 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:52:12,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-15 19:52:12,261 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:52:12,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:52:12 BoogieIcfgContainer [2021-10-15 19:52:12,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:52:12,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:52:12,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:52:12,340 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:52:12,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:52:06" (3/4) ... [2021-10-15 19:52:12,343 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:52:12,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:52:12,344 INFO L168 Benchmark]: Toolchain (without parser) took 7214.74 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 68.4 MB in the beginning and 80.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:12,345 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 85.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:52:12,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.94 ms. Allocated memory is still 104.9 MB. Free memory was 68.2 MB in the beginning and 77.6 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:12,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.51 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 75.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:12,347 INFO L168 Benchmark]: Boogie Preprocessor took 64.24 ms. Allocated memory is still 104.9 MB. Free memory was 75.1 MB in the beginning and 73.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:12,347 INFO L168 Benchmark]: RCFGBuilder took 714.15 ms. Allocated memory is still 104.9 MB. Free memory was 73.5 MB in the beginning and 54.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:12,348 INFO L168 Benchmark]: TraceAbstraction took 6021.66 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 53.7 MB in the beginning and 80.9 MB in the end (delta: -27.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:52:12,348 INFO L168 Benchmark]: Witness Printer took 3.72 ms. Allocated memory is still 138.4 MB. Free memory is still 80.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:52:12,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 85.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.94 ms. Allocated memory is still 104.9 MB. Free memory was 68.2 MB in the beginning and 77.6 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.51 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 75.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.24 ms. Allocated memory is still 104.9 MB. Free memory was 75.1 MB in the beginning and 73.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 714.15 ms. Allocated memory is still 104.9 MB. Free memory was 73.5 MB in the beginning and 54.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6021.66 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 53.7 MB in the beginning and 80.9 MB in the end (delta: -27.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.72 ms. Allocated memory is still 138.4 MB. Free memory is still 80.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 103, overapproximation of bitwiseAnd at line 104. Possible FailurePath: [L219] unsigned int a ; [L220] unsigned int ma = __VERIFIER_nondet_uint(); [L221] signed char ea = __VERIFIER_nondet_char(); [L222] unsigned int b ; [L223] unsigned int mb = __VERIFIER_nondet_uint(); [L224] signed char eb = __VERIFIER_nondet_char(); [L225] unsigned int r_add ; [L226] unsigned int zero ; [L227] int sa ; [L228] int sb ; [L229] int tmp ; [L230] int tmp___0 ; [L231] int tmp___1 ; [L232] int tmp___2 ; [L233] int tmp___3 ; [L234] int tmp___4 ; [L235] int tmp___5 ; [L236] int tmp___6 ; [L237] int tmp___7 ; [L238] int tmp___8 ; [L239] int tmp___9 ; [L240] int __retres23 ; [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND TRUE ! m [L23] __retres4 = 0U [L73] return (__retres4); [L244] zero = base2flt(0, 0) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND TRUE m >= 1U << 25U [L57] COND TRUE e >= 127 [L58] __retres4 = 4294967295U [L73] return (__retres4); [L245] a = base2flt(ma, ea) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND FALSE !(m >= 1U << 25U) [L69] m = m & ~ (1U << 24U) [L70] EXPR e + 128 [L70] res = m | ((unsigned int ) (e + 128) << 24U) [L71] __retres4 = res [L73] return (__retres4); [L246] b = base2flt(mb, eb) [L248] COND FALSE !(a < zero) [L251] COND TRUE a > zero [L252] tmp = 1 [L256] sa = tmp [L258] COND FALSE !(b < zero) [L261] COND TRUE b > zero [L262] tmp___0 = 1 [L266] sb = tmp___0 [L77] unsigned int res ; [L78] unsigned int ma ; [L79] unsigned int mb ; [L80] unsigned int delta ; [L81] int ea ; [L82] int eb ; [L83] unsigned int tmp ; [L84] unsigned int __retres10 ; [L87] COND FALSE !(a < b) [L94] COND FALSE !(! b) [L101] ma = a & ((1U << 24U) - 1U) [L102] EXPR (int )(a >> 24U) - 128 [L102] ea = (int )(a >> 24U) - 128 [L103] ma = ma | (1U << 24U) [L104] mb = b & ((1U << 24U) - 1U) [L105] (int )(b >> 24U) - 128 - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 5885.4ms, OverallIterations: 20, TraceHistogramMax: 2, EmptinessCheckTime: 34.4ms, AutomataDifference: 2777.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2275 SDtfs, 3023 SDslu, 5389 SDs, 0 SdLazy, 1353 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1256.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 954.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=16, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 303.2ms AutomataMinimizationTime, 19 MinimizatonAttempts, 918 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 60.6ms SsaConstructionTime, 440.7ms SatisfiabilityAnalysisTime, 1610.6ms InterpolantComputationTime, 406 NumberOfCodeBlocks, 406 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 1337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 20 InterpolantComputations, 19 PerfectInterpolantSequences, 2/4 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 [2021-10-15 19:52:12,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d8718e-4a1a-46c6-8a66-9f7a14485b28/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...