./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/genady.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/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_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/genady.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/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 64bit --witnessprinter.graph.data.programhash 287610e8766968d20807fa7cedb2876e161017ade0a329100f16c8240065cc6a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:08:51,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:08:51,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:08:51,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:08:51,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:08:51,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:08:51,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:08:51,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:08:51,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:08:51,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:08:51,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:08:51,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:08:51,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:08:51,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:08:51,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:08:51,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:08:51,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:08:51,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:08:51,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:08:51,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:08:51,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:08:51,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:08:51,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:08:51,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:08:51,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:08:51,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:08:51,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:08:51,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:08:51,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:08:51,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:08:51,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:08:51,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:08:51,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:08:51,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:08:51,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:08:51,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:08:51,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:08:51,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:08:51,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:08:51,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:08:51,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:08:51,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-23 14:08:51,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:08:51,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:08:51,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:08:51,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:08:51,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:08:51,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:08:51,332 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:08:51,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:08:51,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:08:51,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:08:51,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:08:51,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:08:51,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:08:51,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:08:51,335 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 14:08:51,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:08:51,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:08:51,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:08:51,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:08:51,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:08:51,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:08:51,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:08:51,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:08:51,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:08:51,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:08:51,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:08:51,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:08:51,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:08:51,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:08:51,342 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_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287610e8766968d20807fa7cedb2876e161017ade0a329100f16c8240065cc6a [2021-11-23 14:08:51,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:08:51,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:08:51,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:08:51,724 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:08:51,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:08:51,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-crafted-lit/genady.c [2021-11-23 14:08:51,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/data/be838a598/db55306aa14a426db3fce2f68885b183/FLAG70e80a228 [2021-11-23 14:08:52,428 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:08:52,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/sv-benchmarks/c/termination-crafted-lit/genady.c [2021-11-23 14:08:52,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/data/be838a598/db55306aa14a426db3fce2f68885b183/FLAG70e80a228 [2021-11-23 14:08:52,741 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/data/be838a598/db55306aa14a426db3fce2f68885b183 [2021-11-23 14:08:52,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:08:52,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:08:52,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:08:52,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:08:52,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:08:52,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:52,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ab6ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52, skipping insertion in model container [2021-11-23 14:08:52,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:52,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:08:52,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:08:52,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:08:52,966 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:08:52,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:08:52,994 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:08:52,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52 WrapperNode [2021-11-23 14:08:52,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:08:52,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:08:52,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:08:52,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:08:53,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,055 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-23 14:08:53,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:08:53,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:08:53,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:08:53,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:08:53,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:08:53,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:08:53,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:08:53,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:08:53,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (1/1) ... [2021-11-23 14:08:53,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:08:53,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:53,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:08:53,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:08:53,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:08:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:08:53,307 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:08:53,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:08:53,476 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:08:53,485 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:08:53,486 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 14:08:53,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:53 BoogieIcfgContainer [2021-11-23 14:08:53,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:08:53,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:08:53,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:08:53,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:08:53,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:08:52" (1/3) ... [2021-11-23 14:08:53,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6627d776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:53, skipping insertion in model container [2021-11-23 14:08:53,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:52" (2/3) ... [2021-11-23 14:08:53,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6627d776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:53, skipping insertion in model container [2021-11-23 14:08:53,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:53" (3/3) ... [2021-11-23 14:08:53,501 INFO L111 eAbstractionObserver]: Analyzing ICFG genady.c [2021-11-23 14:08:53,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:08:53,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 14:08:53,577 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:08:53,587 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 14:08:53,587 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 14:08:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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 14:08:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 14:08:53,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:53,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 14:08:53,621 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:53,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-11-23 14:08:53,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:53,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207775070] [2021-11-23 14:08:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:53,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:53,803 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 14:08:53,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:53,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207775070] [2021-11-23 14:08:53,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207775070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:53,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:53,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:08:53,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203246866] [2021-11-23 14:08:53,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:53,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:53,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:53,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:53,856 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 14:08:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:53,911 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-11-23 14:08:53,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:53,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-11-23 14:08:53,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:53,925 INFO L225 Difference]: With dead ends: 23 [2021-11-23 14:08:53,925 INFO L226 Difference]: Without dead ends: 14 [2021-11-23 14:08:53,929 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 14:08:53,934 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:53,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-23 14:08:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-23 14:08:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 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 14:08:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-23 14:08:53,993 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 3 [2021-11-23 14:08:53,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:53,993 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-23 14:08:53,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 14:08:53,994 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-23 14:08:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 14:08:53,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:53,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 14:08:53,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:08:53,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:53,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:53,997 INFO L85 PathProgramCache]: Analyzing trace with hash 925700, now seen corresponding path program 1 times [2021-11-23 14:08:53,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:53,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668550607] [2021-11-23 14:08:53,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:53,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,057 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 14:08:54,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:54,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668550607] [2021-11-23 14:08:54,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668550607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:54,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:54,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:08:54,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049856393] [2021-11-23 14:08:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:54,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:54,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:54,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:54,063 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 14:08:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:54,109 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-11-23 14:08:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:54,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-23 14:08:54,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:54,111 INFO L225 Difference]: With dead ends: 22 [2021-11-23 14:08:54,111 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 14:08:54,111 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 14:08:54,114 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:54,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:54,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 14:08:54,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2021-11-23 14:08:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 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 14:08:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-23 14:08:54,123 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2021-11-23 14:08:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:54,123 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-23 14:08:54,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 14:08:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-23 14:08:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 14:08:54,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:54,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 14:08:54,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:08:54,126 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash 889599142, now seen corresponding path program 1 times [2021-11-23 14:08:54,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:54,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720706757] [2021-11-23 14:08:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:54,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,159 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 14:08:54,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:54,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720706757] [2021-11-23 14:08:54,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720706757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:54,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:54,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:08:54,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723047186] [2021-11-23 14:08:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:54,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:54,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:54,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:54,164 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:08:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:54,215 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-23 14:08:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:54,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-23 14:08:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:54,217 INFO L225 Difference]: With dead ends: 20 [2021-11-23 14:08:54,217 INFO L226 Difference]: Without dead ends: 19 [2021-11-23 14:08:54,218 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 14:08:54,221 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:54,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:54,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-23 14:08:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-11-23 14:08:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 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 14:08:54,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-23 14:08:54,236 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2021-11-23 14:08:54,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:54,236 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-11-23 14:08:54,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:08:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-23 14:08:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 14:08:54,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:54,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:54,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:08:54,239 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:54,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1807769675, now seen corresponding path program 1 times [2021-11-23 14:08:54,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:54,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174435663] [2021-11-23 14:08:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:54,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,292 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 14:08:54,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:54,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174435663] [2021-11-23 14:08:54,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174435663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:54,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:54,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:08:54,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530329878] [2021-11-23 14:08:54,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:54,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:54,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:54,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:54,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:54,302 INFO L87 Difference]: Start difference. First operand 18 states and 18 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 14:08:54,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:54,330 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-23 14:08:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:54,331 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 14:08:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:54,332 INFO L225 Difference]: With dead ends: 18 [2021-11-23 14:08:54,332 INFO L226 Difference]: Without dead ends: 17 [2021-11-23 14:08:54,333 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 14:08:54,336 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:54,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-23 14:08:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-23 14:08:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 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 14:08:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-23 14:08:54,344 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2021-11-23 14:08:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:54,345 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-23 14:08:54,345 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 14:08:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-23 14:08:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 14:08:54,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:54,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:54,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:08:54,347 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 206285128, now seen corresponding path program 1 times [2021-11-23 14:08:54,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:54,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947801505] [2021-11-23 14:08:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:54,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,386 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 14:08:54,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:54,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947801505] [2021-11-23 14:08:54,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947801505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:54,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:54,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:08:54,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289811316] [2021-11-23 14:08:54,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:54,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:54,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:54,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:54,391 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 14:08:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:54,410 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-11-23 14:08:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-23 14:08:54,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:54,412 INFO L225 Difference]: With dead ends: 17 [2021-11-23 14:08:54,413 INFO L226 Difference]: Without dead ends: 16 [2021-11-23 14:08:54,413 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 14:08:54,416 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:54,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-23 14:08:54,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-23 14:08:54,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 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 14:08:54,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-23 14:08:54,424 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2021-11-23 14:08:54,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:54,425 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-23 14:08:54,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 14:08:54,425 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-23 14:08:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 14:08:54,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:54,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:54,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:08:54,460 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:54,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:54,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2099871725, now seen corresponding path program 1 times [2021-11-23 14:08:54,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:54,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845280486] [2021-11-23 14:08:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:54,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,504 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 14:08:54,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:54,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845280486] [2021-11-23 14:08:54,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845280486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:54,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:54,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:08:54,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045834119] [2021-11-23 14:08:54,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:54,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:54,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:54,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:54,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:54,509 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:54,552 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-11-23 14:08:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:54,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 14:08:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:54,554 INFO L225 Difference]: With dead ends: 20 [2021-11-23 14:08:54,554 INFO L226 Difference]: Without dead ends: 19 [2021-11-23 14:08:54,555 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 14:08:54,557 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:54,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:54,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-23 14:08:54,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-23 14:08:54,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 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 14:08:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-23 14:08:54,565 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2021-11-23 14:08:54,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:54,569 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-23 14:08:54,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-23 14:08:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 14:08:54,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:54,571 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:54,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:08:54,572 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:54,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:54,573 INFO L85 PathProgramCache]: Analyzing trace with hash -657900177, now seen corresponding path program 1 times [2021-11-23 14:08:54,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:54,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743286367] [2021-11-23 14:08:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:54,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,652 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 14:08:54,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:54,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743286367] [2021-11-23 14:08:54,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743286367] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:08:54,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957210749] [2021-11-23 14:08:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:54,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:54,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:54,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:08:54,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 14:08:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:54,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:08:54,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:54,987 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 14:08:54,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:55,112 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 14:08:55,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957210749] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:08:55,113 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:08:55,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2021-11-23 14:08:55,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455644018] [2021-11-23 14:08:55,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:08:55,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 14:08:55,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 14:08:55,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=58, Unknown=0, NotChecked=0, Total=110 [2021-11-23 14:08:55,117 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 14:08:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:55,241 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-11-23 14:08:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:08:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 14:08:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:55,243 INFO L225 Difference]: With dead ends: 31 [2021-11-23 14:08:55,244 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 14:08:55,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=58, Unknown=0, NotChecked=0, Total=110 [2021-11-23 14:08:55,246 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:55,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 5 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:08:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 14:08:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2021-11-23 14:08:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 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 14:08:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-23 14:08:55,254 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2021-11-23 14:08:55,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:55,255 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-23 14:08:55,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 14:08:55,255 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-23 14:08:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 14:08:55,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:55,256 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-11-23 14:08:55,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:55,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:55,482 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash 342822242, now seen corresponding path program 1 times [2021-11-23 14:08:55,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:55,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877388981] [2021-11-23 14:08:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:55,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:55,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:55,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877388981] [2021-11-23 14:08:55,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877388981] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:08:55,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027919996] [2021-11-23 14:08:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:55,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:55,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:55,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:08:55,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:08:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:55,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:55,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:55,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:55,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:55,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027919996] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:08:55,743 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:08:55,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-23 14:08:55,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802702373] [2021-11-23 14:08:55,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:08:55,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:08:55,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:55,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:08:55,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:55,763 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 14:08:55,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:55,828 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-11-23 14:08:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:08:55,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 14:08:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:55,841 INFO L225 Difference]: With dead ends: 42 [2021-11-23 14:08:55,843 INFO L226 Difference]: Without dead ends: 41 [2021-11-23 14:08:55,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 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 14:08:55,846 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:55,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-23 14:08:55,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-11-23 14:08:55,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 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 14:08:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-11-23 14:08:55,867 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 16 [2021-11-23 14:08:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:55,870 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-11-23 14:08:55,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 14:08:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-11-23 14:08:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 14:08:55,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:55,872 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2021-11-23 14:08:55,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:56,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:56,098 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:56,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:56,099 INFO L85 PathProgramCache]: Analyzing trace with hash 26701382, now seen corresponding path program 1 times [2021-11-23 14:08:56,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:56,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963652880] [2021-11-23 14:08:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:56,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:56,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:56,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963652880] [2021-11-23 14:08:56,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963652880] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:08:56,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114509659] [2021-11-23 14:08:56,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:56,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:56,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:56,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:08:56,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:08:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:56,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 14:08:56,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:56,298 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:56,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:56,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114509659] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:08:56,401 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:08:56,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-23 14:08:56,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971630498] [2021-11-23 14:08:56,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:08:56,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:08:56,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:56,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:08:56,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:08:56,405 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 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 14:08:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:56,494 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-11-23 14:08:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:08:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 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 14:08:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:56,500 INFO L225 Difference]: With dead ends: 52 [2021-11-23 14:08:56,500 INFO L226 Difference]: Without dead ends: 51 [2021-11-23 14:08:56,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:08:56,507 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:56,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 23 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:08:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-23 14:08:56,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-11-23 14:08:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0625) internal successors, (51), 49 states have internal predecessors, (51), 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 14:08:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-11-23 14:08:56,533 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 20 [2021-11-23 14:08:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:56,534 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-11-23 14:08:56,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 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 14:08:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-11-23 14:08:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 14:08:56,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:56,537 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2021-11-23 14:08:56,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 14:08:56,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:56,746 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:56,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1396677805, now seen corresponding path program 2 times [2021-11-23 14:08:56,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:56,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288421431] [2021-11-23 14:08:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:56,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-23 14:08:56,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:56,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288421431] [2021-11-23 14:08:56,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288421431] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:08:56,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136387968] [2021-11-23 14:08:56,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:08:56,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:56,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:56,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:08:56,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:08:56,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:08:56,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:08:56,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:08:56,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:57,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:57,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136387968] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:08:57,320 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:08:57,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 16 [2021-11-23 14:08:57,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573155997] [2021-11-23 14:08:57,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:08:57,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 14:08:57,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:57,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 14:08:57,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-23 14:08:57,323 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 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 14:08:57,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:57,600 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-11-23 14:08:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:08:57,601 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 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 37 [2021-11-23 14:08:57,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:57,602 INFO L225 Difference]: With dead ends: 50 [2021-11-23 14:08:57,602 INFO L226 Difference]: Without dead ends: 49 [2021-11-23 14:08:57,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=548, Unknown=0, NotChecked=0, Total=870 [2021-11-23 14:08:57,604 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:57,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 8 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:08:57,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-23 14:08:57,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-23 14:08:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 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 14:08:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-11-23 14:08:57,612 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 37 [2021-11-23 14:08:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:57,613 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-11-23 14:08:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.375) internal successors, (86), 17 states have internal predecessors, (86), 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 14:08:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-11-23 14:08:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 14:08:57,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:57,615 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1] [2021-11-23 14:08:57,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:57,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 14:08:57,816 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 14:08:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash -720119418, now seen corresponding path program 2 times [2021-11-23 14:08:57,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:57,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456405358] [2021-11-23 14:08:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:57,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:58,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:58,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456405358] [2021-11-23 14:08:58,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456405358] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:08:58,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71967474] [2021-11-23 14:08:58,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:08:58,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:58,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:58,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:08:58,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 14:08:58,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:08:58,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:08:58,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 14:08:58,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:58,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:58,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71967474] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:08:58,593 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:08:58,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2021-11-23 14:08:58,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756600495] [2021-11-23 14:08:58,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:08:58,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 14:08:58,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:58,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 14:08:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2021-11-23 14:08:58,603 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 24 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 14:08:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:58,934 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2021-11-23 14:08:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:08:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 24 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) Word has length 48 [2021-11-23 14:08:58,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:58,939 INFO L225 Difference]: With dead ends: 62 [2021-11-23 14:08:58,939 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 14:08:58,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=955, Unknown=0, NotChecked=0, Total=1406 [2021-11-23 14:08:58,943 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 62 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:58,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 8 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 14:08:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 14:08:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 14:08:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 14:08:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 14:08:58,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-11-23 14:08:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:58,946 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 14:08:58,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 24 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 14:08:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 14:08:58,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 14:08:58,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-11-23 14:08:58,951 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-11-23 14:08:58,951 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-11-23 14:08:58,951 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-11-23 14:08:58,951 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-11-23 14:08:58,952 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-11-23 14:08:58,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:59,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 14:08:59,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 14:08:59,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-23 14:08:59,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 14:08:59,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2021-11-23 14:08:59,388 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-11-23 14:08:59,388 INFO L854 garLoopResultBuilder]: At program point L19(lines 11 20) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| (+ 9999 |ULTIMATE.start_main_~j~0#1|)) [2021-11-23 14:08:59,389 INFO L858 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-11-23 14:08:59,389 INFO L858 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-11-23 14:08:59,389 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-11-23 14:08:59,389 INFO L858 garLoopResultBuilder]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2021-11-23 14:08:59,390 INFO L854 garLoopResultBuilder]: At program point L15-4(lines 15 18) the Hoare annotation is: (let ((.cse0 (<= 10001 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|)))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 9995) (<= |ULTIMATE.start_main_~j~0#1| 9995)) (and (<= 1 |ULTIMATE.start_main_~j~0#1|) (<= (+ 9999 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 10000)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 9998)) (and (<= 9999 |ULTIMATE.start_main_~i~0#1|) (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2) (<= |ULTIMATE.start_main_~i~0#1| 9999)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 5) (<= |ULTIMATE.start_main_~i~0#1| 9996)) (and (<= |ULTIMATE.start_main_~i~0#1| 9997) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 4)))) [2021-11-23 14:08:59,390 INFO L858 garLoopResultBuilder]: For program point L15-5(lines 15 18) no Hoare annotation was computed. [2021-11-23 14:08:59,390 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 14:08:59,390 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-23 14:08:59,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2021-11-23 14:08:59,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 14:08:59,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-11-23 14:08:59,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 14:08:59,391 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-11-23 14:08:59,391 INFO L858 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2021-11-23 14:08:59,405 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:59,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 14:08:59,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:08:59 BoogieIcfgContainer [2021-11-23 14:08:59,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 14:08:59,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:08:59,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:08:59,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:08:59,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:53" (3/4) ... [2021-11-23 14:08:59,453 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 14:08:59,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 14:08:59,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 14:08:59,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 14:08:59,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 14:08:59,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:08:59,507 INFO L158 Benchmark]: Toolchain (without parser) took 6760.88ms. Allocated memory is still 123.7MB. Free memory was 98.2MB in the beginning and 70.9MB in the end (delta: 27.3MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-11-23 14:08:59,507 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:08:59,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.55ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 89.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 14:08:59,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.20ms. Allocated memory is still 123.7MB. Free memory was 89.2MB in the beginning and 88.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:08:59,509 INFO L158 Benchmark]: Boogie Preprocessor took 43.84ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 87.1MB in the end (delta: 968.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:08:59,509 INFO L158 Benchmark]: RCFGBuilder took 385.33ms. Allocated memory is still 123.7MB. Free memory was 87.1MB in the beginning and 78.4MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 14:08:59,509 INFO L158 Benchmark]: TraceAbstraction took 5950.12ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 73.0MB in the end (delta: 5.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-23 14:08:59,510 INFO L158 Benchmark]: Witness Printer took 64.49ms. Allocated memory is still 123.7MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:08:59,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.55ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 89.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.20ms. Allocated memory is still 123.7MB. Free memory was 89.2MB in the beginning and 88.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.84ms. Allocated memory is still 123.7MB. Free memory was 88.0MB in the beginning and 87.1MB in the end (delta: 968.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.33ms. Allocated memory is still 123.7MB. Free memory was 87.1MB in the beginning and 78.4MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5950.12ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 73.0MB in the end (delta: 5.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 64.49ms. Allocated memory is still 123.7MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 11, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 56 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=9, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 11 NumberOfFragments, 79 HoareAnnotationTreeSize, 2 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 349 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 1432 SizeOfPredicates, 2 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 247/669 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((((10001 <= i + j && i <= 9995) && j <= 9995) || ((1 <= j && 9999 + j <= i) && i <= 10000)) || ((10001 <= i + j && j <= 3) && i <= 9998)) || (((9999 <= i && 2 <= j) && j <= 2) && i <= 9999)) || ((10001 <= i + j && j <= 5) && i <= 9996)) || ((i <= 9997 && 10001 <= i + j) && j <= 4) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: i <= 9999 + j RESULT: Ultimate proved your program to be correct! [2021-11-23 14:08:59,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3cf3869-32d2-41ff-b5d4-0aec7fbfdb56/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 Writing output log to file Ultimate.log Result: TRUE