./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G --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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:57:31,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:57:31,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:57:31,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:57:31,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:57:31,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:57:31,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:57:31,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:57:31,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:57:31,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:57:31,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:57:31,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:57:31,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:57:31,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:57:31,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:57:31,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:57:31,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:57:31,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:57:31,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:57:31,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:57:31,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:57:31,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:57:31,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:57:31,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:57:31,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:57:31,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:57:31,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:57:31,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:57:31,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:57:31,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:57:31,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:57:31,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:57:31,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:57:31,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:57:31,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:57:31,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:57:31,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:57:31,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:57:31,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:57:31,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:57:31,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:57:31,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-23 13:57:31,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:57:31,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:57:31,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:57:31,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:57:31,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:57:31,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:57:31,861 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:57:31,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:57:31,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:57:31,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:57:31,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:57:31,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:57:31,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:57:31,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:57:31,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:57:31,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:57:31,864 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 13:57:31,865 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:57:31,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:57:31,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:57:31,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:57:31,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:57:31,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:57:31,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:57:31,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:57:31,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:57:31,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:57:31,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:57:31,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:57:31,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:57:31,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:57:31,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:57:31,869 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_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2021-11-23 13:57:32,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:57:32,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:57:32,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:57:32,250 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:57:32,251 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:57:32,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-11-23 13:57:32,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/data/fb63db76b/a69a3ba0d97d4d7f8ecab952730b96aa/FLAGa53b702d7 [2021-11-23 13:57:32,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:57:32,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-11-23 13:57:32,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/data/fb63db76b/a69a3ba0d97d4d7f8ecab952730b96aa/FLAGa53b702d7 [2021-11-23 13:57:33,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/data/fb63db76b/a69a3ba0d97d4d7f8ecab952730b96aa [2021-11-23 13:57:33,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:57:33,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:57:33,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:57:33,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:57:33,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:57:33,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e62b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33, skipping insertion in model container [2021-11-23 13:57:33,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:57:33,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:57:33,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2021-11-23 13:57:33,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:57:33,665 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:57:33,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2021-11-23 13:57:33,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:57:33,784 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:57:33,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33 WrapperNode [2021-11-23 13:57:33,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:57:33,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:57:33,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:57:33,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:57:33,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,881 INFO L137 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 314 [2021-11-23 13:57:33,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:57:33,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:57:33,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:57:33,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:57:33,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:57:33,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:57:33,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:57:33,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:57:33,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (1/1) ... [2021-11-23 13:57:33,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:57:34,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:34,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:57:34,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:57:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:57:34,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:57:34,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:57:34,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:57:34,162 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:57:34,164 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:57:34,645 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:57:34,656 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:57:34,656 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-23 13:57:34,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:34 BoogieIcfgContainer [2021-11-23 13:57:34,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:57:34,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:57:34,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:57:34,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:57:34,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:57:33" (1/3) ... [2021-11-23 13:57:34,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54298c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:34, skipping insertion in model container [2021-11-23 13:57:34,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:33" (2/3) ... [2021-11-23 13:57:34,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54298c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:34, skipping insertion in model container [2021-11-23 13:57:34,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:34" (3/3) ... [2021-11-23 13:57:34,699 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2021-11-23 13:57:34,706 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:57:34,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-11-23 13:57:34,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:57:34,782 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2021-11-23 13:57:34,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-11-23 13:57:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 107 states have (on average 1.8317757009345794) internal successors, (196), 143 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 13:57:34,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:34,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:34,830 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:34,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:34,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-11-23 13:57:34,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:34,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523711952] [2021-11-23 13:57:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:34,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:35,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:35,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523711952] [2021-11-23 13:57:35,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523711952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:35,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:35,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:57:35,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550966941] [2021-11-23 13:57:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:35,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:57:35,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:35,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:57:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:57:35,105 INFO L87 Difference]: Start difference. First operand has 144 states, 107 states have (on average 1.8317757009345794) internal successors, (196), 143 states have internal predecessors, (196), 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) [2021-11-23 13:57:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:35,150 INFO L93 Difference]: Finished difference Result 268 states and 364 transitions. [2021-11-23 13:57:35,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:57:35,153 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 [2021-11-23 13:57:35,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:35,168 INFO L225 Difference]: With dead ends: 268 [2021-11-23 13:57:35,168 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 13:57:35,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:57:35,179 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:35,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:57:35,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 13:57:35,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-11-23 13:57:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 94 states have (on average 1.648936170212766) internal successors, (155), 127 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 155 transitions. [2021-11-23 13:57:35,238 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 155 transitions. Word has length 7 [2021-11-23 13:57:35,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:35,238 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 155 transitions. [2021-11-23 13:57:35,239 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) [2021-11-23 13:57:35,239 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 155 transitions. [2021-11-23 13:57:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 13:57:35,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:35,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:35,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:57:35,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:35,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:35,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-11-23 13:57:35,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:35,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426717634] [2021-11-23 13:57:35,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:35,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:35,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:35,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426717634] [2021-11-23 13:57:35,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426717634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:35,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:35,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:57:35,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071223422] [2021-11-23 13:57:35,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:35,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:57:35,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:57:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:57:35,357 INFO L87 Difference]: Start difference. First operand 128 states and 155 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) [2021-11-23 13:57:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:35,650 INFO L93 Difference]: Finished difference Result 267 states and 327 transitions. [2021-11-23 13:57:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:57:35,652 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 [2021-11-23 13:57:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:35,657 INFO L225 Difference]: With dead ends: 267 [2021-11-23 13:57:35,662 INFO L226 Difference]: Without dead ends: 156 [2021-11-23 13:57:35,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:57:35,667 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 28 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:35,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 218 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-23 13:57:35,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2021-11-23 13:57:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 118 states have (on average 1.5338983050847457) internal successors, (181), 151 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:35,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2021-11-23 13:57:35,694 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 7 [2021-11-23 13:57:35,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:35,705 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2021-11-23 13:57:35,707 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) [2021-11-23 13:57:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2021-11-23 13:57:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:57:35,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:35,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:35,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:57:35,711 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:35,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:35,715 INFO L85 PathProgramCache]: Analyzing trace with hash 641273941, now seen corresponding path program 1 times [2021-11-23 13:57:35,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:35,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821388938] [2021-11-23 13:57:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:35,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:35,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:35,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821388938] [2021-11-23 13:57:35,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821388938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:35,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:35,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:35,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236422012] [2021-11-23 13:57:35,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:35,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:35,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:35,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:35,818 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:36,090 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2021-11-23 13:57:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:36,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 13:57:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:36,099 INFO L225 Difference]: With dead ends: 206 [2021-11-23 13:57:36,099 INFO L226 Difference]: Without dead ends: 202 [2021-11-23 13:57:36,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:36,102 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 89 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:36,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 382 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-23 13:57:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 154. [2021-11-23 13:57:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 122 states have (on average 1.5) internal successors, (183), 153 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2021-11-23 13:57:36,167 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 11 [2021-11-23 13:57:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:36,168 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2021-11-23 13:57:36,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2021-11-23 13:57:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:57:36,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:36,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:36,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:57:36,171 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-11-23 13:57:36,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:36,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610568176] [2021-11-23 13:57:36,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:36,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:36,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:36,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610568176] [2021-11-23 13:57:36,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610568176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:36,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:36,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:36,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214904656] [2021-11-23 13:57:36,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:36,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:36,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:36,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:36,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:36,297 INFO L87 Difference]: Start difference. First operand 154 states and 183 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) [2021-11-23 13:57:36,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:36,523 INFO L93 Difference]: Finished difference Result 335 states and 396 transitions. [2021-11-23 13:57:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:36,523 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 [2021-11-23 13:57:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:36,525 INFO L225 Difference]: With dead ends: 335 [2021-11-23 13:57:36,525 INFO L226 Difference]: Without dead ends: 214 [2021-11-23 13:57:36,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:36,528 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 103 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:36,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 362 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-23 13:57:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 160. [2021-11-23 13:57:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 130 states have (on average 1.4692307692307693) internal successors, (191), 159 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:36,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2021-11-23 13:57:36,545 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 12 [2021-11-23 13:57:36,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:36,545 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2021-11-23 13:57:36,545 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) [2021-11-23 13:57:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2021-11-23 13:57:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:57:36,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:36,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:36,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:57:36,548 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-11-23 13:57:36,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:36,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513208233] [2021-11-23 13:57:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:36,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:36,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:36,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:36,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513208233] [2021-11-23 13:57:36,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513208233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:36,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:36,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:36,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620184712] [2021-11-23 13:57:36,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:36,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:36,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:36,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:36,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:36,601 INFO L87 Difference]: Start difference. First operand 160 states and 191 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) [2021-11-23 13:57:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:36,754 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2021-11-23 13:57:36,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:36,755 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 [2021-11-23 13:57:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:36,757 INFO L225 Difference]: With dead ends: 211 [2021-11-23 13:57:36,757 INFO L226 Difference]: Without dead ends: 205 [2021-11-23 13:57:36,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:57:36,770 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 259 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:36,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 213 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-23 13:57:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157. [2021-11-23 13:57:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 156 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2021-11-23 13:57:36,796 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 13 [2021-11-23 13:57:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:36,797 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2021-11-23 13:57:36,797 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) [2021-11-23 13:57:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2021-11-23 13:57:36,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:57:36,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:36,799 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:36,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:57:36,800 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-11-23 13:57:36,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:36,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856561830] [2021-11-23 13:57:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:36,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:36,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:36,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856561830] [2021-11-23 13:57:36,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856561830] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:36,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022374366] [2021-11-23 13:57:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:36,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:36,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:36,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:36,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:57:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:36,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:57:36,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:37,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:37,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022374366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:37,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:37,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-23 13:57:37,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143680743] [2021-11-23 13:57:37,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:37,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:37,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:37,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:57:37,003 INFO L87 Difference]: Start difference. First operand 157 states and 189 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) [2021-11-23 13:57:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:37,152 INFO L93 Difference]: Finished difference Result 248 states and 291 transitions. [2021-11-23 13:57:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:37,153 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 [2021-11-23 13:57:37,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:37,155 INFO L225 Difference]: With dead ends: 248 [2021-11-23 13:57:37,155 INFO L226 Difference]: Without dead ends: 244 [2021-11-23 13:57:37,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:57:37,157 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 236 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:37,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 283 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:37,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-23 13:57:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 150. [2021-11-23 13:57:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.421875) internal successors, (182), 149 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2021-11-23 13:57:37,173 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 13 [2021-11-23 13:57:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:37,173 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2021-11-23 13:57:37,174 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) [2021-11-23 13:57:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2021-11-23 13:57:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 13:57:37,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:37,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:37,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:37,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:37,401 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash 662586488, now seen corresponding path program 1 times [2021-11-23 13:57:37,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:37,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663119747] [2021-11-23 13:57:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:37,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:37,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:37,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663119747] [2021-11-23 13:57:37,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663119747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:37,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:37,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:57:37,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753331679] [2021-11-23 13:57:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:37,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:57:37,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:37,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:57:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:57:37,467 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:37,601 INFO L93 Difference]: Finished difference Result 198 states and 233 transitions. [2021-11-23 13:57:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:57:37,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-23 13:57:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:37,603 INFO L225 Difference]: With dead ends: 198 [2021-11-23 13:57:37,604 INFO L226 Difference]: Without dead ends: 194 [2021-11-23 13:57:37,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:57:37,608 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 76 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:37,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 230 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:37,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-23 13:57:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 142. [2021-11-23 13:57:37,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 124 states have (on average 1.403225806451613) internal successors, (174), 141 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2021-11-23 13:57:37,641 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 14 [2021-11-23 13:57:37,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:37,642 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2021-11-23 13:57:37,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,642 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2021-11-23 13:57:37,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 13:57:37,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:37,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:37,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:57:37,644 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:37,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:37,645 INFO L85 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-11-23 13:57:37,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:37,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525005303] [2021-11-23 13:57:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:37,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:37,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:37,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525005303] [2021-11-23 13:57:37,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525005303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:37,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:37,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:37,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025733652] [2021-11-23 13:57:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:37,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:37,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:37,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:37,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:37,738 INFO L87 Difference]: Start difference. First operand 142 states and 174 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) [2021-11-23 13:57:37,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:37,872 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2021-11-23 13:57:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:37,874 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 [2021-11-23 13:57:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:37,876 INFO L225 Difference]: With dead ends: 196 [2021-11-23 13:57:37,876 INFO L226 Difference]: Without dead ends: 194 [2021-11-23 13:57:37,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:57:37,880 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 229 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:37,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 212 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:37,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-23 13:57:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 144. [2021-11-23 13:57:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.3858267716535433) internal successors, (176), 143 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 176 transitions. [2021-11-23 13:57:37,904 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 176 transitions. Word has length 15 [2021-11-23 13:57:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:37,905 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 176 transitions. [2021-11-23 13:57:37,905 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) [2021-11-23 13:57:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 176 transitions. [2021-11-23 13:57:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:57:37,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:37,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:37,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 13:57:37,912 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:37,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1172929667, now seen corresponding path program 1 times [2021-11-23 13:57:37,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:37,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922164958] [2021-11-23 13:57:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:37,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922164958] [2021-11-23 13:57:38,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922164958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:38,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:38,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:38,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136460308] [2021-11-23 13:57:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:38,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:38,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:38,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:38,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:38,009 INFO L87 Difference]: Start difference. First operand 144 states and 176 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:38,112 INFO L93 Difference]: Finished difference Result 194 states and 231 transitions. [2021-11-23 13:57:38,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:38,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 13:57:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:38,115 INFO L225 Difference]: With dead ends: 194 [2021-11-23 13:57:38,115 INFO L226 Difference]: Without dead ends: 192 [2021-11-23 13:57:38,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:57:38,123 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 279 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:38,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 169 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-11-23 13:57:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 138. [2021-11-23 13:57:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 137 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 169 transitions. [2021-11-23 13:57:38,138 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 169 transitions. Word has length 16 [2021-11-23 13:57:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:38,139 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 169 transitions. [2021-11-23 13:57:38,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 169 transitions. [2021-11-23 13:57:38,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 13:57:38,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:38,142 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:38,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 13:57:38,144 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1012839294, now seen corresponding path program 1 times [2021-11-23 13:57:38,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:38,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383171011] [2021-11-23 13:57:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:38,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:57:38,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383171011] [2021-11-23 13:57:38,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383171011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:38,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:38,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:38,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705170529] [2021-11-23 13:57:38,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:38,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:38,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:38,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:38,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:38,222 INFO L87 Difference]: Start difference. First operand 138 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:38,343 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2021-11-23 13:57:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:38,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 13:57:38,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:38,346 INFO L225 Difference]: With dead ends: 232 [2021-11-23 13:57:38,346 INFO L226 Difference]: Without dead ends: 228 [2021-11-23 13:57:38,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:38,348 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 144 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:38,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 330 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-23 13:57:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 129. [2021-11-23 13:57:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 128 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 160 transitions. [2021-11-23 13:57:38,363 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 160 transitions. Word has length 17 [2021-11-23 13:57:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:38,364 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 160 transitions. [2021-11-23 13:57:38,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,364 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 160 transitions. [2021-11-23 13:57:38,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 13:57:38,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:38,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:38,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 13:57:38,367 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1503531701, now seen corresponding path program 1 times [2021-11-23 13:57:38,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:38,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688564627] [2021-11-23 13:57:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:38,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:38,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688564627] [2021-11-23 13:57:38,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688564627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:38,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:38,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:38,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374054052] [2021-11-23 13:57:38,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:38,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:38,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:38,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:38,451 INFO L87 Difference]: Start difference. First operand 129 states and 160 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2021-11-23 13:57:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:38,570 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2021-11-23 13:57:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:38,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 [2021-11-23 13:57:38,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:38,575 INFO L225 Difference]: With dead ends: 179 [2021-11-23 13:57:38,576 INFO L226 Difference]: Without dead ends: 177 [2021-11-23 13:57:38,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:57:38,579 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 255 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:38,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 168 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-23 13:57:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 124. [2021-11-23 13:57:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 123 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2021-11-23 13:57:38,595 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 18 [2021-11-23 13:57:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:38,597 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2021-11-23 13:57:38,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2021-11-23 13:57:38,597 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2021-11-23 13:57:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 13:57:38,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:38,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:38,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 13:57:38,599 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:38,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1714169845, now seen corresponding path program 1 times [2021-11-23 13:57:38,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:38,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33186367] [2021-11-23 13:57:38,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:38,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33186367] [2021-11-23 13:57:38,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33186367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:38,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:38,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:57:38,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463860476] [2021-11-23 13:57:38,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:38,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:57:38,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:38,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:57:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:57:38,682 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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) [2021-11-23 13:57:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:38,760 INFO L93 Difference]: Finished difference Result 197 states and 243 transitions. [2021-11-23 13:57:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:57:38,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 [2021-11-23 13:57:38,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:38,762 INFO L225 Difference]: With dead ends: 197 [2021-11-23 13:57:38,762 INFO L226 Difference]: Without dead ends: 116 [2021-11-23 13:57:38,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:57:38,764 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 5 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:38,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 198 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:38,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-23 13:57:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-11-23 13:57:38,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 115 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2021-11-23 13:57:38,779 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 20 [2021-11-23 13:57:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:38,779 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2021-11-23 13:57:38,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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) [2021-11-23 13:57:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2021-11-23 13:57:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 13:57:38,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:38,781 INFO L514 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] [2021-11-23 13:57:38,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 13:57:38,782 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:38,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash 120036563, now seen corresponding path program 1 times [2021-11-23 13:57:38,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597658409] [2021-11-23 13:57:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:38,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:38,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597658409] [2021-11-23 13:57:38,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597658409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:38,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:38,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:57:38,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413258290] [2021-11-23 13:57:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:38,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:57:38,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:38,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:57:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:38,892 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:38,968 INFO L93 Difference]: Finished difference Result 212 states and 256 transitions. [2021-11-23 13:57:38,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:57:38,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-11-23 13:57:38,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:38,970 INFO L225 Difference]: With dead ends: 212 [2021-11-23 13:57:38,970 INFO L226 Difference]: Without dead ends: 112 [2021-11-23 13:57:38,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:57:38,975 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 16 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:38,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 188 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-23 13:57:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2021-11-23 13:57:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 98 states have (on average 1.316326530612245) internal successors, (129), 107 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-11-23 13:57:38,989 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 29 [2021-11-23 13:57:38,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:38,989 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-11-23 13:57:38,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:38,990 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-11-23 13:57:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 13:57:38,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:38,994 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:38,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 13:57:38,995 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash -53723030, now seen corresponding path program 1 times [2021-11-23 13:57:38,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:38,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414112697] [2021-11-23 13:57:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:38,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:39,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414112697] [2021-11-23 13:57:39,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414112697] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960045526] [2021-11-23 13:57:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:39,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:39,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:39,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:39,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:57:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:39,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:57:39,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:39,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:39,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960045526] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:39,364 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:39,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-23 13:57:39,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942794508] [2021-11-23 13:57:39,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:39,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:57:39,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:39,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:57:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:57:39,372 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:39,589 INFO L93 Difference]: Finished difference Result 322 states and 379 transitions. [2021-11-23 13:57:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:57:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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 33 [2021-11-23 13:57:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:39,592 INFO L225 Difference]: With dead ends: 322 [2021-11-23 13:57:39,592 INFO L226 Difference]: Without dead ends: 233 [2021-11-23 13:57:39,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:57:39,594 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 257 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:39,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 427 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-23 13:57:39,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 148. [2021-11-23 13:57:39,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 138 states have (on average 1.2826086956521738) internal successors, (177), 147 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 177 transitions. [2021-11-23 13:57:39,610 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 177 transitions. Word has length 33 [2021-11-23 13:57:39,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:39,611 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 177 transitions. [2021-11-23 13:57:39,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:39,611 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 177 transitions. [2021-11-23 13:57:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 13:57:39,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:39,613 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-11-23 13:57:39,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:39,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-23 13:57:39,829 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1040699320, now seen corresponding path program 1 times [2021-11-23 13:57:39,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:39,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773674634] [2021-11-23 13:57:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:39,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:39,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:39,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773674634] [2021-11-23 13:57:39,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773674634] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:39,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118762161] [2021-11-23 13:57:39,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:39,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:39,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:39,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:39,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:57:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:40,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 13:57:40,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:40,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 13:57:40,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:40,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118762161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:40,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:40,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2021-11-23 13:57:40,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254574611] [2021-11-23 13:57:40,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:40,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:57:40,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:40,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:57:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:57:40,142 INFO L87 Difference]: Start difference. First operand 148 states and 177 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 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) [2021-11-23 13:57:40,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:40,314 INFO L93 Difference]: Finished difference Result 269 states and 322 transitions. [2021-11-23 13:57:40,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:57:40,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 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 34 [2021-11-23 13:57:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:40,318 INFO L225 Difference]: With dead ends: 269 [2021-11-23 13:57:40,319 INFO L226 Difference]: Without dead ends: 116 [2021-11-23 13:57:40,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:57:40,323 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 28 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:40,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 512 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-23 13:57:40,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2021-11-23 13:57:40,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 111 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 131 transitions. [2021-11-23 13:57:40,337 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 131 transitions. Word has length 34 [2021-11-23 13:57:40,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:40,338 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 131 transitions. [2021-11-23 13:57:40,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 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) [2021-11-23 13:57:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 131 transitions. [2021-11-23 13:57:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 13:57:40,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:40,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-11-23 13:57:40,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:40,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 13:57:40,565 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 262910457, now seen corresponding path program 1 times [2021-11-23 13:57:40,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:40,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430184066] [2021-11-23 13:57:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:40,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:40,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:40,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430184066] [2021-11-23 13:57:40,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430184066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:40,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473432614] [2021-11-23 13:57:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:40,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:40,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:40,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:40,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:57:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:40,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:57:40,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 13:57:40,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:40,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473432614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:40,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:40,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-11-23 13:57:40,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464839151] [2021-11-23 13:57:40,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:40,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:57:40,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:40,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:57:40,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:57:40,899 INFO L87 Difference]: Start difference. First operand 112 states and 131 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:41,035 INFO L93 Difference]: Finished difference Result 147 states and 167 transitions. [2021-11-23 13:57:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:57:41,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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 38 [2021-11-23 13:57:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:41,039 INFO L225 Difference]: With dead ends: 147 [2021-11-23 13:57:41,039 INFO L226 Difference]: Without dead ends: 116 [2021-11-23 13:57:41,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:57:41,041 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 76 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:41,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 319 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-23 13:57:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2021-11-23 13:57:41,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 102 states have (on average 1.2745098039215685) internal successors, (130), 111 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) [2021-11-23 13:57:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2021-11-23 13:57:41,054 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 38 [2021-11-23 13:57:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:41,055 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2021-11-23 13:57:41,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2021-11-23 13:57:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 13:57:41,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:41,056 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-11-23 13:57:41,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:41,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 13:57:41,281 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:41,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1498651123, now seen corresponding path program 1 times [2021-11-23 13:57:41,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:41,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913581112] [2021-11-23 13:57:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:41,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:41,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:41,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913581112] [2021-11-23 13:57:41,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913581112] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:41,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228087785] [2021-11-23 13:57:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:41,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:41,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:41,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:41,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:57:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:41,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:57:41,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 13:57:41,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:41,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228087785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:41,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:41,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-11-23 13:57:41,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915008184] [2021-11-23 13:57:41,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:41,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:57:41,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:41,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:57:41,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:57:41,609 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:41,759 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2021-11-23 13:57:41,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:57:41,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 13:57:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:41,761 INFO L225 Difference]: With dead ends: 199 [2021-11-23 13:57:41,762 INFO L226 Difference]: Without dead ends: 167 [2021-11-23 13:57:41,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:57:41,763 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 53 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:41,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 407 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:41,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-23 13:57:41,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2021-11-23 13:57:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 123 states have (on average 1.2601626016260163) internal successors, (155), 132 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2021-11-23 13:57:41,779 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 40 [2021-11-23 13:57:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:41,781 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2021-11-23 13:57:41,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2021-11-23 13:57:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 13:57:41,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:41,783 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-11-23 13:57:41,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:42,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 13:57:42,009 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1021308811, now seen corresponding path program 1 times [2021-11-23 13:57:42,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466700603] [2021-11-23 13:57:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:42,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:42,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:42,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466700603] [2021-11-23 13:57:42,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466700603] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:42,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994247438] [2021-11-23 13:57:42,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:42,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:42,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:42,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:42,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:57:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:42,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 13:57:42,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 13:57:42,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:42,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994247438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:42,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:42,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2021-11-23 13:57:42,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702203338] [2021-11-23 13:57:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:42,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:57:42,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:42,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:57:42,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:57:42,376 INFO L87 Difference]: Start difference. First operand 133 states and 155 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:42,589 INFO L93 Difference]: Finished difference Result 168 states and 191 transitions. [2021-11-23 13:57:42,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:57:42,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 13:57:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:42,591 INFO L225 Difference]: With dead ends: 168 [2021-11-23 13:57:42,591 INFO L226 Difference]: Without dead ends: 114 [2021-11-23 13:57:42,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:57:42,592 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 22 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:42,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 570 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:42,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-23 13:57:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2021-11-23 13:57:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 111 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2021-11-23 13:57:42,607 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 40 [2021-11-23 13:57:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:42,607 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2021-11-23 13:57:42,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2021-11-23 13:57:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 13:57:42,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:42,609 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1] [2021-11-23 13:57:42,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:42,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:42,833 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1227759650, now seen corresponding path program 1 times [2021-11-23 13:57:42,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:42,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239580513] [2021-11-23 13:57:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:42,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:42,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:42,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239580513] [2021-11-23 13:57:42,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239580513] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:42,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445686677] [2021-11-23 13:57:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:42,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:42,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:42,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:42,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:57:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:42,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:57:42,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:43,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:43,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445686677] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:43,398 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:43,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-23 13:57:43,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709310092] [2021-11-23 13:57:43,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:43,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:57:43,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:43,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:57:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:57:43,400 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:43,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:43,684 INFO L93 Difference]: Finished difference Result 187 states and 213 transitions. [2021-11-23 13:57:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:57:43,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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 44 [2021-11-23 13:57:43,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:43,686 INFO L225 Difference]: With dead ends: 187 [2021-11-23 13:57:43,686 INFO L226 Difference]: Without dead ends: 114 [2021-11-23 13:57:43,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:57:43,688 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 55 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:43,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 367 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-23 13:57:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2021-11-23 13:57:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 102 states have (on average 1.2156862745098038) internal successors, (124), 111 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) [2021-11-23 13:57:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2021-11-23 13:57:43,701 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 44 [2021-11-23 13:57:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:43,702 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2021-11-23 13:57:43,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2021-11-23 13:57:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 13:57:43,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:43,703 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 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] [2021-11-23 13:57:43,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:43,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:43,929 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:43,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1767254012, now seen corresponding path program 1 times [2021-11-23 13:57:43,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:43,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326003623] [2021-11-23 13:57:43,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:43,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:44,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:44,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326003623] [2021-11-23 13:57:44,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326003623] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:44,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214073324] [2021-11-23 13:57:44,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:44,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:44,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:44,050 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:44,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:57:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:44,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:57:44,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:44,317 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:44,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:44,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214073324] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:44,615 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:44,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2021-11-23 13:57:44,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11175814] [2021-11-23 13:57:44,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:44,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:57:44,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:44,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:57:44,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:57:44,618 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:44,870 INFO L93 Difference]: Finished difference Result 300 states and 340 transitions. [2021-11-23 13:57:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 13:57:44,871 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 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 63 [2021-11-23 13:57:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:44,874 INFO L225 Difference]: With dead ends: 300 [2021-11-23 13:57:44,874 INFO L226 Difference]: Without dead ends: 230 [2021-11-23 13:57:44,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:57:44,876 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 188 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:44,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 608 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:57:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-23 13:57:44,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 152. [2021-11-23 13:57:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 142 states have (on average 1.2112676056338028) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:44,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2021-11-23 13:57:44,903 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 63 [2021-11-23 13:57:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:44,903 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2021-11-23 13:57:44,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:44,904 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2021-11-23 13:57:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 13:57:44,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:44,905 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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, 1] [2021-11-23 13:57:44,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:45,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:45,133 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 311393762, now seen corresponding path program 2 times [2021-11-23 13:57:45,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:45,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470915329] [2021-11-23 13:57:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:45,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:45,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:45,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470915329] [2021-11-23 13:57:45,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470915329] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:45,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742884648] [2021-11-23 13:57:45,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:57:45,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:45,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:45,295 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:45,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:57:45,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 13:57:45,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:57:45,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:57:45,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-23 13:57:45,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:45,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742884648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:45,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:45,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-23 13:57:45,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462160444] [2021-11-23 13:57:45,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:45,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:57:45,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:45,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:57:45,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:57:45,674 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:45,862 INFO L93 Difference]: Finished difference Result 304 states and 336 transitions. [2021-11-23 13:57:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:57:45,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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 64 [2021-11-23 13:57:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:45,865 INFO L225 Difference]: With dead ends: 304 [2021-11-23 13:57:45,865 INFO L226 Difference]: Without dead ends: 275 [2021-11-23 13:57:45,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-23 13:57:45,867 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 275 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:45,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 414 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:45,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-23 13:57:45,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 179. [2021-11-23 13:57:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 169 states have (on average 1.2071005917159763) internal successors, (204), 178 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:45,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 204 transitions. [2021-11-23 13:57:45,886 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 204 transitions. Word has length 64 [2021-11-23 13:57:45,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:45,886 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 204 transitions. [2021-11-23 13:57:45,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:45,887 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 204 transitions. [2021-11-23 13:57:45,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 13:57:45,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:45,888 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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, 1, 1, 1] [2021-11-23 13:57:45,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:46,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-23 13:57:46,105 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:46,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:46,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1398293820, now seen corresponding path program 1 times [2021-11-23 13:57:46,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:46,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532868069] [2021-11-23 13:57:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:46,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:46,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532868069] [2021-11-23 13:57:46,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532868069] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936671453] [2021-11-23 13:57:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:46,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:46,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:46,273 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:46,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:57:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:46,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:57:46,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-23 13:57:46,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:57:46,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936671453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:46,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:57:46,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-23 13:57:46,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643939753] [2021-11-23 13:57:46,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:46,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:57:46,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:46,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:57:46,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:57:46,552 INFO L87 Difference]: Start difference. First operand 179 states and 204 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:46,688 INFO L93 Difference]: Finished difference Result 254 states and 282 transitions. [2021-11-23 13:57:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:57:46,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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 66 [2021-11-23 13:57:46,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:46,692 INFO L225 Difference]: With dead ends: 254 [2021-11-23 13:57:46,692 INFO L226 Difference]: Without dead ends: 253 [2021-11-23 13:57:46,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-11-23 13:57:46,694 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 214 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:46,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 459 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:57:46,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-23 13:57:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 201. [2021-11-23 13:57:46,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 200 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 230 transitions. [2021-11-23 13:57:46,714 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 230 transitions. Word has length 66 [2021-11-23 13:57:46,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:46,715 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 230 transitions. [2021-11-23 13:57:46,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 230 transitions. [2021-11-23 13:57:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 13:57:46,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:46,717 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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, 1, 1, 1] [2021-11-23 13:57:46,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:46,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-23 13:57:46,941 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:57:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:46,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1091473032, now seen corresponding path program 1 times [2021-11-23 13:57:46,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:46,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250804938] [2021-11-23 13:57:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:46,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:47,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:47,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250804938] [2021-11-23 13:57:47,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250804938] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:57:47,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522772565] [2021-11-23 13:57:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:47,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:57:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:47,067 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:57:47,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:57:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:47,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 13:57:47,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:47,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:47,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522772565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:47,917 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:57:47,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2021-11-23 13:57:47,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81983842] [2021-11-23 13:57:47,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:47,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:57:47,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:47,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:57:47,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:57:47,919 INFO L87 Difference]: Start difference. First operand 201 states and 230 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:02,072 WARN L227 SmtUtils]: Spent 9.05s on a formula simplification. DAG size of input: 26 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:58:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:58:16,295 INFO L93 Difference]: Finished difference Result 325 states and 373 transitions. [2021-11-23 13:58:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 13:58:16,297 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 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 66 [2021-11-23 13:58:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:58:16,299 INFO L225 Difference]: With dead ends: 325 [2021-11-23 13:58:16,299 INFO L226 Difference]: Without dead ends: 203 [2021-11-23 13:58:16,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 119 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=190, Invalid=310, Unknown=6, NotChecked=0, Total=506 [2021-11-23 13:58:16,300 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 76 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:58:16,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 887 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:58:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-23 13:58:16,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 201. [2021-11-23 13:58:16,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 191 states have (on average 1.162303664921466) internal successors, (222), 200 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 222 transitions. [2021-11-23 13:58:16,318 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 222 transitions. Word has length 66 [2021-11-23 13:58:16,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:58:16,319 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 222 transitions. [2021-11-23 13:58:16,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 222 transitions. [2021-11-23 13:58:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 13:58:16,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:58:16,321 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 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] [2021-11-23 13:58:16,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:16,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:16,541 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:58:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1948753818, now seen corresponding path program 1 times [2021-11-23 13:58:16,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:16,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526397497] [2021-11-23 13:58:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:16,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:16,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:58:16,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526397497] [2021-11-23 13:58:16,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526397497] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:58:16,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450240212] [2021-11-23 13:58:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:16,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:16,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:16,824 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:58:16,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 13:58:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:16,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 13:58:16,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:17,203 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:17,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:58:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:17,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450240212] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:58:17,892 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:58:17,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2021-11-23 13:58:17,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366776550] [2021-11-23 13:58:17,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:58:17,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-23 13:58:17,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-23 13:58:17,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 13:58:17,896 INFO L87 Difference]: Start difference. First operand 201 states and 222 transitions. Second operand has 33 states, 33 states have (on average 5.666666666666667) internal successors, (187), 33 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:58:18,275 INFO L93 Difference]: Finished difference Result 509 states and 581 transitions. [2021-11-23 13:58:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-23 13:58:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.666666666666667) internal successors, (187), 33 states have internal predecessors, (187), 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 105 [2021-11-23 13:58:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:58:18,279 INFO L225 Difference]: With dead ends: 509 [2021-11-23 13:58:18,279 INFO L226 Difference]: Without dead ends: 390 [2021-11-23 13:58:18,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 13:58:18,282 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 421 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:58:18,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 490 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:58:18,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-23 13:58:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 281. [2021-11-23 13:58:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 271 states have (on average 1.1734317343173433) internal successors, (318), 280 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 318 transitions. [2021-11-23 13:58:18,306 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 318 transitions. Word has length 105 [2021-11-23 13:58:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:58:18,307 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 318 transitions. [2021-11-23 13:58:18,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.666666666666667) internal successors, (187), 33 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 318 transitions. [2021-11-23 13:58:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-23 13:58:18,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:58:18,309 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 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, 1, 1, 1] [2021-11-23 13:58:18,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:18,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-23 13:58:18,525 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:58:18,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1176359688, now seen corresponding path program 2 times [2021-11-23 13:58:18,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:18,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427449908] [2021-11-23 13:58:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:18,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:18,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:58:18,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427449908] [2021-11-23 13:58:18,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427449908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:58:18,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029911226] [2021-11-23 13:58:18,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:58:18,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:18,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:18,906 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:58:18,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 13:58:19,541 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 13:58:19,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:58:19,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 13:58:19,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-11-23 13:58:19,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:58:19,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029911226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:58:19,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:58:19,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2021-11-23 13:58:19,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851109122] [2021-11-23 13:58:19,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:58:19,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:58:19,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:58:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-11-23 13:58:19,937 INFO L87 Difference]: Start difference. First operand 281 states and 318 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:58:20,180 INFO L93 Difference]: Finished difference Result 332 states and 369 transitions. [2021-11-23 13:58:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:58:20,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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 106 [2021-11-23 13:58:20,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:58:20,184 INFO L225 Difference]: With dead ends: 332 [2021-11-23 13:58:20,184 INFO L226 Difference]: Without dead ends: 331 [2021-11-23 13:58:20,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2021-11-23 13:58:20,186 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 291 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:58:20,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 542 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:58:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-11-23 13:58:20,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 278. [2021-11-23 13:58:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 268 states have (on average 1.171641791044776) internal successors, (314), 277 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 314 transitions. [2021-11-23 13:58:20,209 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 314 transitions. Word has length 106 [2021-11-23 13:58:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:58:20,210 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 314 transitions. [2021-11-23 13:58:20,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:20,210 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 314 transitions. [2021-11-23 13:58:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-23 13:58:20,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:58:20,212 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 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, 1, 1, 1, 1] [2021-11-23 13:58:20,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:20,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:20,425 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:58:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1266045867, now seen corresponding path program 1 times [2021-11-23 13:58:20,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:20,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478021459] [2021-11-23 13:58:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:20,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:20,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:58:20,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478021459] [2021-11-23 13:58:20,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478021459] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:58:20,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428016546] [2021-11-23 13:58:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:20,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:20,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:20,788 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:58:20,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 13:58:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:20,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 13:58:20,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-11-23 13:58:21,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:58:21,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428016546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:58:21,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:58:21,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2021-11-23 13:58:21,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142743250] [2021-11-23 13:58:21,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:58:21,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:58:21,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:21,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:58:21,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-11-23 13:58:21,390 INFO L87 Difference]: Start difference. First operand 278 states and 314 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:58:21,694 INFO L93 Difference]: Finished difference Result 331 states and 367 transitions. [2021-11-23 13:58:21,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:58:21,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 107 [2021-11-23 13:58:21,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:58:21,697 INFO L225 Difference]: With dead ends: 331 [2021-11-23 13:58:21,697 INFO L226 Difference]: Without dead ends: 328 [2021-11-23 13:58:21,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2021-11-23 13:58:21,699 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 206 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:58:21,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 525 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:58:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-23 13:58:21,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2021-11-23 13:58:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 279 states have (on average 1.17921146953405) internal successors, (329), 288 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:21,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 329 transitions. [2021-11-23 13:58:21,729 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 329 transitions. Word has length 107 [2021-11-23 13:58:21,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:58:21,730 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 329 transitions. [2021-11-23 13:58:21,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:21,730 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 329 transitions. [2021-11-23 13:58:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 13:58:21,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:58:21,732 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 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, 1, 1, 1, 1, 1] [2021-11-23 13:58:21,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:21,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-23 13:58:21,953 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:58:21,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:21,954 INFO L85 PathProgramCache]: Analyzing trace with hash 592716582, now seen corresponding path program 1 times [2021-11-23 13:58:21,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:21,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200507931] [2021-11-23 13:58:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:21,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:22,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:58:22,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200507931] [2021-11-23 13:58:22,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200507931] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:58:22,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498876044] [2021-11-23 13:58:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:22,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:22,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:22,342 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:58:22,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 13:58:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:22,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 13:58:22,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-11-23 13:58:23,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:58:23,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498876044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:58:23,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:58:23,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 26 [2021-11-23 13:58:23,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042212650] [2021-11-23 13:58:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:58:23,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 13:58:23,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 13:58:23,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-11-23 13:58:23,089 INFO L87 Difference]: Start difference. First operand 289 states and 329 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:23,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:58:23,538 INFO L93 Difference]: Finished difference Result 369 states and 409 transitions. [2021-11-23 13:58:23,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:58:23,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 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 108 [2021-11-23 13:58:23,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:58:23,541 INFO L225 Difference]: With dead ends: 369 [2021-11-23 13:58:23,541 INFO L226 Difference]: Without dead ends: 362 [2021-11-23 13:58:23,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2021-11-23 13:58:23,543 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 288 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:58:23,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 749 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:58:23,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-23 13:58:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 307. [2021-11-23 13:58:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 297 states have (on average 1.1717171717171717) internal successors, (348), 306 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 348 transitions. [2021-11-23 13:58:23,566 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 348 transitions. Word has length 108 [2021-11-23 13:58:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:58:23,566 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 348 transitions. [2021-11-23 13:58:23,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 348 transitions. [2021-11-23 13:58:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 13:58:23,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:58:23,569 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 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, 1, 1, 1, 1, 1] [2021-11-23 13:58:23,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:58:23,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-23 13:58:23,786 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:58:23,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:58:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash -134533746, now seen corresponding path program 1 times [2021-11-23 13:58:23,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:58:23,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416922358] [2021-11-23 13:58:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:23,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:58:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:24,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:58:24,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416922358] [2021-11-23 13:58:24,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416922358] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:58:24,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38977778] [2021-11-23 13:58:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:58:24,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:58:24,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:58:24,176 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:58:24,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-23 13:58:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:58:24,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 13:58:24,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:58:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:25,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:58:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:58:26,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38977778] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:58:26,345 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:58:26,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2021-11-23 13:58:26,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843742972] [2021-11-23 13:58:26,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:58:26,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-23 13:58:26,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:58:26,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-23 13:58:26,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=758, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 13:58:26,382 INFO L87 Difference]: Start difference. First operand 307 states and 348 transitions. Second operand has 33 states, 33 states have (on average 5.545454545454546) internal successors, (183), 33 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:58:32,760 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 38 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:59:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:59:17,719 INFO L93 Difference]: Finished difference Result 457 states and 521 transitions. [2021-11-23 13:59:17,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 13:59:17,720 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 5.545454545454546) internal successors, (183), 33 states have internal predecessors, (183), 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 108 [2021-11-23 13:59:17,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:59:17,723 INFO L225 Difference]: With dead ends: 457 [2021-11-23 13:59:17,723 INFO L226 Difference]: Without dead ends: 309 [2021-11-23 13:59:17,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 187 SyntacticMatches, 13 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=538, Invalid=1172, Unknown=12, NotChecked=0, Total=1722 [2021-11-23 13:59:17,725 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 150 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:59:17,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1674 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 13:59:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-23 13:59:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2021-11-23 13:59:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 297 states have (on average 1.138047138047138) internal successors, (338), 306 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:59:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 338 transitions. [2021-11-23 13:59:17,746 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 338 transitions. Word has length 108 [2021-11-23 13:59:17,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:59:17,746 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 338 transitions. [2021-11-23 13:59:17,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.545454545454546) internal successors, (183), 33 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:59:17,747 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 338 transitions. [2021-11-23 13:59:17,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-23 13:59:17,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:59:17,749 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 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, 1, 1, 1, 1, 1] [2021-11-23 13:59:17,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-23 13:59:17,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-23 13:59:17,965 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-11-23 13:59:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:59:17,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1536746478, now seen corresponding path program 2 times [2021-11-23 13:59:17,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:59:17,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720092668] [2021-11-23 13:59:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:59:17,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:59:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:59:18,093 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:59:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:59:18,235 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:59:18,236 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:59:18,238 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2021-11-23 13:59:18,240 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2021-11-23 13:59:18,241 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2021-11-23 13:59:18,241 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2021-11-23 13:59:18,241 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2021-11-23 13:59:18,241 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2021-11-23 13:59:18,242 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2021-11-23 13:59:18,242 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2021-11-23 13:59:18,242 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2021-11-23 13:59:18,242 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2021-11-23 13:59:18,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2021-11-23 13:59:18,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2021-11-23 13:59:18,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 36 remaining) [2021-11-23 13:59:18,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 36 remaining) [2021-11-23 13:59:18,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 36 remaining) [2021-11-23 13:59:18,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 36 remaining) [2021-11-23 13:59:18,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2021-11-23 13:59:18,245 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2021-11-23 13:59:18,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2021-11-23 13:59:18,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2021-11-23 13:59:18,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2021-11-23 13:59:18,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2021-11-23 13:59:18,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2021-11-23 13:59:18,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2021-11-23 13:59:18,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2021-11-23 13:59:18,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2021-11-23 13:59:18,247 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2021-11-23 13:59:18,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2021-11-23 13:59:18,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2021-11-23 13:59:18,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2021-11-23 13:59:18,248 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2021-11-23 13:59:18,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2021-11-23 13:59:18,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2021-11-23 13:59:18,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2021-11-23 13:59:18,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2021-11-23 13:59:18,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2021-11-23 13:59:18,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-23 13:59:18,282 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:59:18,288 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:59:18,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:59:18 BoogieIcfgContainer [2021-11-23 13:59:18,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:59:18,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:59:18,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:59:18,449 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:59:18,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:34" (3/4) ... [2021-11-23 13:59:18,453 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:59:18,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:59:18,454 INFO L158 Benchmark]: Toolchain (without parser) took 105197.56ms. Allocated memory was 90.2MB in the beginning and 169.9MB in the end (delta: 79.7MB). Free memory was 54.6MB in the beginning and 136.6MB in the end (delta: -82.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:59:18,455 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 62.4MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:59:18,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.83ms. Allocated memory is still 90.2MB. Free memory was 54.4MB in the beginning and 62.8MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:59:18,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.86ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 60.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:59:18,456 INFO L158 Benchmark]: Boogie Preprocessor took 89.22ms. Allocated memory is still 90.2MB. Free memory was 59.9MB in the beginning and 58.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:59:18,456 INFO L158 Benchmark]: RCFGBuilder took 686.02ms. Allocated memory is still 90.2MB. Free memory was 58.2MB in the beginning and 39.8MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 13:59:18,457 INFO L158 Benchmark]: TraceAbstraction took 103770.29ms. Allocated memory was 90.2MB in the beginning and 169.9MB in the end (delta: 79.7MB). Free memory was 39.3MB in the beginning and 136.6MB in the end (delta: -97.3MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2021-11-23 13:59:18,457 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 169.9MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:59:18,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 62.4MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.83ms. Allocated memory is still 90.2MB. Free memory was 54.4MB in the beginning and 62.8MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.86ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 60.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.22ms. Allocated memory is still 90.2MB. Free memory was 59.9MB in the beginning and 58.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 686.02ms. Allocated memory is still 90.2MB. Free memory was 58.2MB in the beginning and 39.8MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 103770.29ms. Allocated memory was 90.2MB in the beginning and 169.9MB in the end (delta: 79.7MB). Free memory was 39.3MB in the beginning and 136.6MB in the end (delta: -97.3MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 169.9MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 173, overapproximation of bitwiseAnd at line 174. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sa ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; [L238] CALL, EXPR base2flt(0, 0) [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=2, e=-24, res=2] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=36028797018963970, __retres4=2, e=-24, res=2] [L239] RET, EXPR base2flt(1, 0) [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L80] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, __retres4=4294967295, e=127, m=33554432] [L240] RET, EXPR base2flt(ma, ea) [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=1, e=0, res=1] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=36028797018963969, __retres4=1, e=0, res=1] [L241] RET, EXPR base2flt(mb, eb) [L241] b = base2flt(mb, eb) [L243] COND FALSE !(a < zero) VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, one=2, zero=0] [L246] COND TRUE a > zero [L247] tmp = 1 VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, one=2, tmp=1, zero=0] [L251] sa = tmp VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, one=2, sa=1, tmp=1, zero=0] [L254] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L158] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L165] COND FALSE !(! b) [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L172] EXPR (int )(a >> 24U) - 128 [L172] ea = (int )(a >> 24U) - 128 [L173] ma = ma | (1U << 24U) [L174] mb = b & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] [L175] (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: 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, 36 error locations. Started 1 CEGAR loops. OverallTime: 103.5s, OverallIterations: 29, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 85.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4319 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4319 mSDsluCounter, 12080 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8780 mSDsCounter, 478 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3727 IncrementalHoareTripleChecker+Invalid, 4205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 478 mSolverCounterUnsat, 3300 mSDtfsCounter, 3727 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1689 GetRequests, 1359 SyntacticMatches, 19 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 82.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=307occurred in iteration=27, InterpolantAutomatonStates: 237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 28 MinimizatonAttempts, 1177 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 2407 NumberOfCodeBlocks, 2317 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 2618 ConstructedInterpolants, 0 QuantifiedInterpolants, 8485 SizeOfPredicates, 63 NumberOfNonLiveVariables, 2642 ConjunctsInSsa, 230 ConjunctsInUnsatCore, 50 InterpolantComputations, 22 PerfectInterpolantSequences, 1542/6421 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 13:59:18,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd10a0eb-c57c-420c-92b7-9fcc1054a2ab/bin/uautomizer-wIGwrQj20G/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