./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa --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 f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:54:54,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:54:54,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:54:54,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:54:54,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:54:54,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:54:54,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:54:54,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:54:54,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:54:54,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:54:54,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:54:54,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:54:54,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:54:54,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:54:54,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:54:54,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:54:54,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:54:54,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:54:54,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:54:54,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:54:54,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:54:54,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:54:54,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:54:54,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:54:54,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:54:54,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:54:54,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:54:54,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:54:54,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:54:54,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:54:54,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:54:54,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:54:54,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:54:54,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:54:54,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:54:54,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:54:54,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:54:54,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:54:54,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:54:54,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:54:54,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:54:54,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-06 19:54:54,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:54:54,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:54:54,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:54:54,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:54:54,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:54:54,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:54:54,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:54:54,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:54:54,328 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:54:54,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-06 19:54:54,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:54:54,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:54:54,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:54:54,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:54:54,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:54:54,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:54:54,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:54:54,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:54:54,331 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_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f79e4118373e847e0fb27fcdde0c282d507ddb96f3173b4556e1de9cae44280f [2021-12-06 19:54:54,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:54:54,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:54:54,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:54:54,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:54:54,534 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:54:54,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2021-12-06 19:54:54,579 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/data/c2613f445/9a1255840dbe4977b6996cdf9b96b7bb/FLAG46019757e [2021-12-06 19:54:54,942 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:54:54,942 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2021-12-06 19:54:54,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/data/c2613f445/9a1255840dbe4977b6996cdf9b96b7bb/FLAG46019757e [2021-12-06 19:54:54,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/data/c2613f445/9a1255840dbe4977b6996cdf9b96b7bb [2021-12-06 19:54:54,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:54:54,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:54:54,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:54:54,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:54:54,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:54:54,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:54:54" (1/1) ... [2021-12-06 19:54:54,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158356b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:54, skipping insertion in model container [2021-12-06 19:54:54,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:54:54" (1/1) ... [2021-12-06 19:54:54,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:54:54,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:54:55,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:54:55,100 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:54:55,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:54:55,117 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:54:55,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55 WrapperNode [2021-12-06 19:54:55,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:54:55,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:54:55,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:54:55,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:54:55,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,140 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-12-06 19:54:55,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:54:55,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:54:55,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:54:55,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:54:55,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:54:55,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:54:55,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:54:55,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:54:55,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (1/1) ... [2021-12-06 19:54:55,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:54:55,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:55,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:54:55,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:54:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:54:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:54:55,264 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:54:55,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:54:55,335 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:54:55,342 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:54:55,342 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:54:55,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:55 BoogieIcfgContainer [2021-12-06 19:54:55,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:54:55,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:54:55,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:54:55,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:54:55,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:54:54" (1/3) ... [2021-12-06 19:54:55,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba458da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:54:55, skipping insertion in model container [2021-12-06 19:54:55,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:55" (2/3) ... [2021-12-06 19:54:55,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba458da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:54:55, skipping insertion in model container [2021-12-06 19:54:55,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:55" (3/3) ... [2021-12-06 19:54:55,352 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-1.c [2021-12-06 19:54:55,357 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:54:55,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-06 19:54:55,393 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:54:55,398 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 [2021-12-06 19:54:55,399 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-06 19:54:55,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:55,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 19:54:55,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:55,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 19:54:55,414 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)] === [2021-12-06 19:54:55,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2021-12-06 19:54:55,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:55,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760897692] [2021-12-06 19:54:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:55,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:55,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760897692] [2021-12-06 19:54:55,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760897692] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:54:55,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:54:55,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:54:55,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284327861] [2021-12-06 19:54:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:54:55,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:54:55,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:55,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:54:55,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:54:55,556 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-12-06 19:54:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:55,591 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2021-12-06 19:54:55,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:54:55,593 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 [2021-12-06 19:54:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:55,599 INFO L225 Difference]: With dead ends: 41 [2021-12-06 19:54:55,599 INFO L226 Difference]: Without dead ends: 27 [2021-12-06 19:54:55,602 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 [2021-12-06 19:54:55,605 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:55,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:55,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-06 19:54:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2021-12-06 19:54:55,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:55,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-12-06 19:54:55,630 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2021-12-06 19:54:55,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:55,630 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-06 19:54:55,630 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) [2021-12-06 19:54:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2021-12-06 19:54:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 19:54:55,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:55,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:55,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:54:55,632 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)] === [2021-12-06 19:54:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2021-12-06 19:54:55,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:55,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653928385] [2021-12-06 19:54:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:55,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:55,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653928385] [2021-12-06 19:54:55,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653928385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:54:55,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:54:55,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:54:55,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158183064] [2021-12-06 19:54:55,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:54:55,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:54:55,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:55,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:54:55,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:54:55,655 INFO L87 Difference]: Start difference. First operand 24 states and 29 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) [2021-12-06 19:54:55,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:55,676 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-12-06 19:54:55,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:54:55,677 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 [2021-12-06 19:54:55,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:55,679 INFO L225 Difference]: With dead ends: 41 [2021-12-06 19:54:55,679 INFO L226 Difference]: Without dead ends: 39 [2021-12-06 19:54:55,679 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 [2021-12-06 19:54:55,681 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:55,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-12-06 19:54:55,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-12-06 19:54:55,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:55,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-12-06 19:54:55,687 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2021-12-06 19:54:55,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:55,687 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-12-06 19:54:55,687 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) [2021-12-06 19:54:55,687 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-12-06 19:54:55,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 19:54:55,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:55,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:55,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:54:55,688 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:55,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:55,688 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2021-12-06 19:54:55,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:55,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114606736] [2021-12-06 19:54:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:55,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:55,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114606736] [2021-12-06 19:54:55,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114606736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:54:55,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:54:55,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:54:55,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733003647] [2021-12-06 19:54:55,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:54:55,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:54:55,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:54:55,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:54:55,713 INFO L87 Difference]: Start difference. First operand 37 states and 48 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) [2021-12-06 19:54:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:55,728 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2021-12-06 19:54:55,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:54:55,729 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 [2021-12-06 19:54:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:55,731 INFO L225 Difference]: With dead ends: 43 [2021-12-06 19:54:55,731 INFO L226 Difference]: Without dead ends: 42 [2021-12-06 19:54:55,731 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 [2021-12-06 19:54:55,732 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:55,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:55,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-06 19:54:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-12-06 19:54:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.5) internal successors, (51), 39 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) [2021-12-06 19:54:55,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-12-06 19:54:55,739 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 8 [2021-12-06 19:54:55,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:55,739 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-12-06 19:54:55,739 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) [2021-12-06 19:54:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2021-12-06 19:54:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:54:55,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:55,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:55,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:54:55,740 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:55,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:55,741 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2021-12-06 19:54:55,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:55,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325174112] [2021-12-06 19:54:55,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:55,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:55,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325174112] [2021-12-06 19:54:55,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325174112] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:54:55,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:54:55,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:54:55,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669661984] [2021-12-06 19:54:55,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:54:55,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:54:55,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:55,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:54:55,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:54:55,787 INFO L87 Difference]: Start difference. First operand 40 states and 51 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) [2021-12-06 19:54:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:55,796 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-12-06 19:54:55,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:54:55,796 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 [2021-12-06 19:54:55,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:55,797 INFO L225 Difference]: With dead ends: 40 [2021-12-06 19:54:55,797 INFO L226 Difference]: Without dead ends: 39 [2021-12-06 19:54:55,797 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 [2021-12-06 19:54:55,799 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:55,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-12-06 19:54:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-12-06 19:54:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.411764705882353) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:55,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2021-12-06 19:54:55,804 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 9 [2021-12-06 19:54:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:55,804 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-12-06 19:54:55,805 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) [2021-12-06 19:54:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2021-12-06 19:54:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 19:54:55,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:55,805 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:55,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:54:55,806 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:55,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:55,806 INFO L85 PathProgramCache]: Analyzing trace with hash -233874170, now seen corresponding path program 1 times [2021-12-06 19:54:55,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:55,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948270464] [2021-12-06 19:54:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:55,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:55,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948270464] [2021-12-06 19:54:55,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948270464] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:55,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405316214] [2021-12-06 19:54:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:55,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:55,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:55,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:55,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:54:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:55,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:54:55,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:55,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405316214] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:55,939 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:55,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-06 19:54:55,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484840744] [2021-12-06 19:54:55,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:55,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:54:55,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:54:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:54:55,941 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2021-12-06 19:54:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:55,987 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2021-12-06 19:54:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:54:55,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) Word has length 12 [2021-12-06 19:54:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:55,989 INFO L225 Difference]: With dead ends: 98 [2021-12-06 19:54:55,989 INFO L226 Difference]: Without dead ends: 96 [2021-12-06 19:54:55,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:54:55,990 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:55,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:55,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-12-06 19:54:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2021-12-06 19:54:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 78 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-12-06 19:54:55,999 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 12 [2021-12-06 19:54:55,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:55,999 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-12-06 19:54:56,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2021-12-06 19:54:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-12-06 19:54:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 19:54:56,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:56,000 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:56,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:56,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:56,203 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:56,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:56,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1982025395, now seen corresponding path program 1 times [2021-12-06 19:54:56,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:56,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526757877] [2021-12-06 19:54:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:56,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:56,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:56,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526757877] [2021-12-06 19:54:56,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526757877] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:56,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920523942] [2021-12-06 19:54:56,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:56,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:56,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:56,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:56,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:54:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:56,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:54:56,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:56,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:56,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920523942] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:56,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:56,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-06 19:54:56,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423364386] [2021-12-06 19:54:56,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:56,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:54:56,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:56,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:54:56,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:54:56,420 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:56,448 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2021-12-06 19:54:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:54:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 19:54:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:56,451 INFO L225 Difference]: With dead ends: 135 [2021-12-06 19:54:56,451 INFO L226 Difference]: Without dead ends: 133 [2021-12-06 19:54:56,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:54:56,452 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:56,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:56,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-12-06 19:54:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 99. [2021-12-06 19:54:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 98 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2021-12-06 19:54:56,463 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 13 [2021-12-06 19:54:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:56,464 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2021-12-06 19:54:56,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2021-12-06 19:54:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 19:54:56,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:56,464 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-06 19:54:56,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:54:56,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:56,667 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1414776337, now seen corresponding path program 1 times [2021-12-06 19:54:56,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:56,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009565879] [2021-12-06 19:54:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:56,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:56,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:56,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009565879] [2021-12-06 19:54:56,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009565879] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:56,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399602744] [2021-12-06 19:54:56,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:56,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:56,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:56,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:56,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:54:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:56,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:54:56,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:56,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:56,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399602744] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:56,876 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:56,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-06 19:54:56,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384091962] [2021-12-06 19:54:56,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:56,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:54:56,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:54:56,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:54:56,877 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:56,898 INFO L93 Difference]: Finished difference Result 207 states and 268 transitions. [2021-12-06 19:54:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:54:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-06 19:54:56,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:56,899 INFO L225 Difference]: With dead ends: 207 [2021-12-06 19:54:56,899 INFO L226 Difference]: Without dead ends: 206 [2021-12-06 19:54:56,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:54:56,900 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:56,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:56,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-12-06 19:54:56,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2021-12-06 19:54:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.24) internal successors, (248), 203 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 248 transitions. [2021-12-06 19:54:56,919 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 248 transitions. Word has length 14 [2021-12-06 19:54:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:56,919 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 248 transitions. [2021-12-06 19:54:56,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:56,919 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 248 transitions. [2021-12-06 19:54:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 19:54:56,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:56,920 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2021-12-06 19:54:56,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:54:57,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 19:54:57,123 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1022063642, now seen corresponding path program 1 times [2021-12-06 19:54:57,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:57,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901939656] [2021-12-06 19:54:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:57,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:57,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:57,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901939656] [2021-12-06 19:54:57,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901939656] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:57,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332644800] [2021-12-06 19:54:57,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:57,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:57,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:57,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:54:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:57,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:54:57,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:57,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:57,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332644800] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:57,473 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:57,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-06 19:54:57,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247274099] [2021-12-06 19:54:57,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:57,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:54:57,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:54:57,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:54:57,474 INFO L87 Difference]: Start difference. First operand 204 states and 248 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:57,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:57,516 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2021-12-06 19:54:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:54:57,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 19:54:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:57,518 INFO L225 Difference]: With dead ends: 399 [2021-12-06 19:54:57,519 INFO L226 Difference]: Without dead ends: 398 [2021-12-06 19:54:57,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:54:57,520 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:57,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 49 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:57,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-06 19:54:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 330. [2021-12-06 19:54:57,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 326 states have (on average 1.2760736196319018) internal successors, (416), 329 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2021-12-06 19:54:57,537 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 19 [2021-12-06 19:54:57,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:57,537 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2021-12-06 19:54:57,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2021-12-06 19:54:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 19:54:57,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:57,539 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-06 19:54:57,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-06 19:54:57,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:57,741 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:57,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:57,742 INFO L85 PathProgramCache]: Analyzing trace with hash -957667535, now seen corresponding path program 2 times [2021-12-06 19:54:57,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:57,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216203396] [2021-12-06 19:54:57,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:57,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:57,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:57,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216203396] [2021-12-06 19:54:57,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216203396] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:57,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833297546] [2021-12-06 19:54:57,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:54:57,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:57,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:57,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:57,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:54:57,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:54:57,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:54:57,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:54:57,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:57,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:58,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833297546] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:58,016 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:58,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-06 19:54:58,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568764879] [2021-12-06 19:54:58,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:58,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:54:58,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:58,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:54:58,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:54:58,017 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:58,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:58,092 INFO L93 Difference]: Finished difference Result 871 states and 1195 transitions. [2021-12-06 19:54:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:54:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-06 19:54:58,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:58,096 INFO L225 Difference]: With dead ends: 871 [2021-12-06 19:54:58,097 INFO L226 Difference]: Without dead ends: 869 [2021-12-06 19:54:58,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:54:58,098 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 111 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:58,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 81 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:58,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2021-12-06 19:54:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 573. [2021-12-06 19:54:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.2864674868189807) internal successors, (732), 572 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 732 transitions. [2021-12-06 19:54:58,120 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 732 transitions. Word has length 30 [2021-12-06 19:54:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:58,120 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 732 transitions. [2021-12-06 19:54:58,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:58,121 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 732 transitions. [2021-12-06 19:54:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:54:58,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:58,123 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2021-12-06 19:54:58,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 19:54:58,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:58,324 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1195498150, now seen corresponding path program 2 times [2021-12-06 19:54:58,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:58,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683980923] [2021-12-06 19:54:58,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:58,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:58,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683980923] [2021-12-06 19:54:58,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683980923] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:58,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733184256] [2021-12-06 19:54:58,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:54:58,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:58,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:58,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:54:58,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:54:58,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:54:58,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:54:58,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:58,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:58,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733184256] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:58,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:58,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-06 19:54:58,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449255648] [2021-12-06 19:54:58,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:58,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:54:58,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:58,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:54:58,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:54:58,692 INFO L87 Difference]: Start difference. First operand 573 states and 732 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:58,739 INFO L93 Difference]: Finished difference Result 1650 states and 2141 transitions. [2021-12-06 19:54:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:54:58,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-12-06 19:54:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:58,746 INFO L225 Difference]: With dead ends: 1650 [2021-12-06 19:54:58,746 INFO L226 Difference]: Without dead ends: 1649 [2021-12-06 19:54:58,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:54:58,748 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 85 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:58,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 86 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:54:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2021-12-06 19:54:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1645. [2021-12-06 19:54:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1641 states have (on average 1.193784277879342) internal successors, (1959), 1644 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:58,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1959 transitions. [2021-12-06 19:54:58,798 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1959 transitions. Word has length 32 [2021-12-06 19:54:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:58,798 INFO L470 AbstractCegarLoop]: Abstraction has 1645 states and 1959 transitions. [2021-12-06 19:54:58,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1959 transitions. [2021-12-06 19:54:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 19:54:58,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:58,801 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2021-12-06 19:54:58,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 19:54:59,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 19:54:59,003 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:59,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:59,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1056880102, now seen corresponding path program 2 times [2021-12-06 19:54:59,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:59,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055610668] [2021-12-06 19:54:59,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:59,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:59,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:59,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055610668] [2021-12-06 19:54:59,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055610668] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:59,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655574059] [2021-12-06 19:54:59,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:54:59,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:59,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:59,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:59,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:54:59,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:54:59,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:54:59,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:54:59,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:59,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:54:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:59,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655574059] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:54:59,347 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:54:59,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-12-06 19:54:59,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529207708] [2021-12-06 19:54:59,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:54:59,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 19:54:59,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:54:59,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 19:54:59,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:54:59,348 INFO L87 Difference]: Start difference. First operand 1645 states and 1959 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:54:59,484 INFO L93 Difference]: Finished difference Result 3431 states and 4254 transitions. [2021-12-06 19:54:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 19:54:59,484 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 43 [2021-12-06 19:54:59,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:54:59,497 INFO L225 Difference]: With dead ends: 3431 [2021-12-06 19:54:59,497 INFO L226 Difference]: Without dead ends: 3430 [2021-12-06 19:54:59,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:54:59,500 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 135 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:54:59,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 99 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:54:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2021-12-06 19:54:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 2080. [2021-12-06 19:54:59,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 2076 states have (on average 1.2129094412331407) internal successors, (2518), 2079 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2518 transitions. [2021-12-06 19:54:59,564 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2518 transitions. Word has length 43 [2021-12-06 19:54:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:54:59,564 INFO L470 AbstractCegarLoop]: Abstraction has 2080 states and 2518 transitions. [2021-12-06 19:54:59,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:54:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2518 transitions. [2021-12-06 19:54:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 19:54:59,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:54:59,568 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-06 19:54:59,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 19:54:59,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 19:54:59,768 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:54:59,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:54:59,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1254740665, now seen corresponding path program 3 times [2021-12-06 19:54:59,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:54:59,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111394011] [2021-12-06 19:54:59,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:54:59,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:54:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:54:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:59,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:54:59,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111394011] [2021-12-06 19:54:59,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111394011] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:54:59,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858624321] [2021-12-06 19:54:59,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 19:54:59,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:54:59,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:54:59,847 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:54:59,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 19:54:59,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-06 19:54:59,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:54:59,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 19:54:59,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:54:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:54:59,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:00,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858624321] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:00,153 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:00,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-06 19:55:00,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369273707] [2021-12-06 19:55:00,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:00,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 19:55:00,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 19:55:00,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:55:00,154 INFO L87 Difference]: Start difference. First operand 2080 states and 2518 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:00,372 INFO L93 Difference]: Finished difference Result 5604 states and 7380 transitions. [2021-12-06 19:55:00,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:55:00,372 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-06 19:55:00,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:00,399 INFO L225 Difference]: With dead ends: 5604 [2021-12-06 19:55:00,399 INFO L226 Difference]: Without dead ends: 5602 [2021-12-06 19:55:00,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:55:00,403 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 202 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:00,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 161 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:55:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5602 states. [2021-12-06 19:55:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5602 to 3121. [2021-12-06 19:55:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3117 states have (on average 1.232595444337504) internal successors, (3842), 3120 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:00,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3842 transitions. [2021-12-06 19:55:00,494 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3842 transitions. Word has length 66 [2021-12-06 19:55:00,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:00,494 INFO L470 AbstractCegarLoop]: Abstraction has 3121 states and 3842 transitions. [2021-12-06 19:55:00,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:00,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3842 transitions. [2021-12-06 19:55:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-06 19:55:00,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:00,497 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2021-12-06 19:55:00,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 19:55:00,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 19:55:00,698 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:00,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1080032752, now seen corresponding path program 3 times [2021-12-06 19:55:00,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827893044] [2021-12-06 19:55:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:00,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:00,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:00,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827893044] [2021-12-06 19:55:00,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827893044] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:00,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295815940] [2021-12-06 19:55:00,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 19:55:00,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:00,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:00,774 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:00,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 19:55:00,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-06 19:55:00,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:00,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 19:55:00,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:00,881 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:00,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:01,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295815940] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:01,054 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:01,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-06 19:55:01,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992746601] [2021-12-06 19:55:01,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:01,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 19:55:01,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:01,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 19:55:01,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:55:01,057 INFO L87 Difference]: Start difference. First operand 3121 states and 3842 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:01,276 INFO L93 Difference]: Finished difference Result 12257 states and 15589 transitions. [2021-12-06 19:55:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:55:01,277 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-06 19:55:01,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:01,317 INFO L225 Difference]: With dead ends: 12257 [2021-12-06 19:55:01,317 INFO L226 Difference]: Without dead ends: 12256 [2021-12-06 19:55:01,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-06 19:55:01,324 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 226 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:01,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 172 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:55:01,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12256 states. [2021-12-06 19:55:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12256 to 12248. [2021-12-06 19:55:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12248 states, 12244 states have (on average 1.1621202221496243) internal successors, (14229), 12247 states have internal predecessors, (14229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12248 states to 12248 states and 14229 transitions. [2021-12-06 19:55:01,606 INFO L78 Accepts]: Start accepts. Automaton has 12248 states and 14229 transitions. Word has length 68 [2021-12-06 19:55:01,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:01,606 INFO L470 AbstractCegarLoop]: Abstraction has 12248 states and 14229 transitions. [2021-12-06 19:55:01,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 12248 states and 14229 transitions. [2021-12-06 19:55:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 19:55:01,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:01,612 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2021-12-06 19:55:01,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 19:55:01,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 19:55:01,814 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968066, now seen corresponding path program 3 times [2021-12-06 19:55:01,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:01,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521450963] [2021-12-06 19:55:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:01,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:02,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:02,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521450963] [2021-12-06 19:55:02,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521450963] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:02,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763444820] [2021-12-06 19:55:02,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 19:55:02,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:02,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:02,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:02,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 19:55:02,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-12-06 19:55:02,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:02,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 19:55:02,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:02,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:02,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763444820] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:02,499 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:02,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2021-12-06 19:55:02,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74888791] [2021-12-06 19:55:02,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:02,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-06 19:55:02,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:02,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-06 19:55:02,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-12-06 19:55:02,501 INFO L87 Difference]: Start difference. First operand 12248 states and 14229 transitions. Second operand has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:02,989 INFO L93 Difference]: Finished difference Result 28887 states and 34639 transitions. [2021-12-06 19:55:02,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-06 19:55:02,989 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 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 91 [2021-12-06 19:55:02,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:03,031 INFO L225 Difference]: With dead ends: 28887 [2021-12-06 19:55:03,031 INFO L226 Difference]: Without dead ends: 28886 [2021-12-06 19:55:03,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-12-06 19:55:03,058 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 323 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:03,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 194 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:55:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28886 states. [2021-12-06 19:55:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28886 to 14083. [2021-12-06 19:55:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14083 states, 14079 states have (on average 1.1735208466510405) internal successors, (16522), 14082 states have internal predecessors, (16522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14083 states to 14083 states and 16522 transitions. [2021-12-06 19:55:03,491 INFO L78 Accepts]: Start accepts. Automaton has 14083 states and 16522 transitions. Word has length 91 [2021-12-06 19:55:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:03,491 INFO L470 AbstractCegarLoop]: Abstraction has 14083 states and 16522 transitions. [2021-12-06 19:55:03,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 14083 states and 16522 transitions. [2021-12-06 19:55:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-06 19:55:03,505 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:03,505 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-06 19:55:03,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-06 19:55:03,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-06 19:55:03,707 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 924663923, now seen corresponding path program 4 times [2021-12-06 19:55:03,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:03,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916292904] [2021-12-06 19:55:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:03,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:03,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:03,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916292904] [2021-12-06 19:55:03,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916292904] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:03,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084428697] [2021-12-06 19:55:03,934 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 19:55:03,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:03,935 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:03,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 19:55:03,971 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 19:55:03,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:03,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 19:55:03,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:04,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:04,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084428697] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:04,516 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:04,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-06 19:55:04,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470566140] [2021-12-06 19:55:04,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:04,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-06 19:55:04,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:04,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-06 19:55:04,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 19:55:04,518 INFO L87 Difference]: Start difference. First operand 14083 states and 16522 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:05,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:05,261 INFO L93 Difference]: Finished difference Result 40092 states and 50721 transitions. [2021-12-06 19:55:05,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-06 19:55:05,261 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 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 138 [2021-12-06 19:55:05,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:05,293 INFO L225 Difference]: With dead ends: 40092 [2021-12-06 19:55:05,293 INFO L226 Difference]: Without dead ends: 40090 [2021-12-06 19:55:05,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 19:55:05,303 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 551 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:05,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 328 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:55:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40090 states. [2021-12-06 19:55:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40090 to 18566. [2021-12-06 19:55:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18566 states, 18562 states have (on average 1.1925439069065833) internal successors, (22136), 18565 states have internal predecessors, (22136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18566 states to 18566 states and 22136 transitions. [2021-12-06 19:55:05,898 INFO L78 Accepts]: Start accepts. Automaton has 18566 states and 22136 transitions. Word has length 138 [2021-12-06 19:55:05,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:05,898 INFO L470 AbstractCegarLoop]: Abstraction has 18566 states and 22136 transitions. [2021-12-06 19:55:05,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:05,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18566 states and 22136 transitions. [2021-12-06 19:55:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 19:55:05,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:05,911 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2021-12-06 19:55:05,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-06 19:55:06,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:06,113 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:06,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -456198628, now seen corresponding path program 4 times [2021-12-06 19:55:06,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:06,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766627668] [2021-12-06 19:55:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:06,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:06,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:06,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766627668] [2021-12-06 19:55:06,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766627668] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:06,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288416940] [2021-12-06 19:55:06,329 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 19:55:06,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:06,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:06,330 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:06,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 19:55:06,368 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 19:55:06,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:06,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 19:55:06,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:06,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:06,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288416940] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:06,998 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:06,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-06 19:55:06,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832928901] [2021-12-06 19:55:06,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:06,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-06 19:55:06,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:06,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-06 19:55:07,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 19:55:07,000 INFO L87 Difference]: Start difference. First operand 18566 states and 22136 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:09,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:09,023 INFO L93 Difference]: Finished difference Result 94606 states and 118669 transitions. [2021-12-06 19:55:09,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-06 19:55:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 0 states have call successors, (0), 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 140 [2021-12-06 19:55:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:09,100 INFO L225 Difference]: With dead ends: 94606 [2021-12-06 19:55:09,100 INFO L226 Difference]: Without dead ends: 94605 [2021-12-06 19:55:09,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 19:55:09,119 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 451 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:09,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 326 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:55:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94605 states. [2021-12-06 19:55:11,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94605 to 94589. [2021-12-06 19:55:11,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94589 states, 94585 states have (on average 1.144219485119205) internal successors, (108226), 94588 states have internal predecessors, (108226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94589 states to 94589 states and 108226 transitions. [2021-12-06 19:55:11,730 INFO L78 Accepts]: Start accepts. Automaton has 94589 states and 108226 transitions. Word has length 140 [2021-12-06 19:55:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:11,730 INFO L470 AbstractCegarLoop]: Abstraction has 94589 states and 108226 transitions. [2021-12-06 19:55:11,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 94589 states and 108226 transitions. [2021-12-06 19:55:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-06 19:55:11,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:11,769 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2021-12-06 19:55:11,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-06 19:55:11,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 19:55:11,970 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1942998190, now seen corresponding path program 4 times [2021-12-06 19:55:11,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:11,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066415675] [2021-12-06 19:55:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:11,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:12,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:12,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066415675] [2021-12-06 19:55:12,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066415675] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:12,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830562665] [2021-12-06 19:55:12,324 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 19:55:12,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:12,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:12,325 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:12,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 19:55:12,386 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 19:55:12,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:12,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-06 19:55:12,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:12,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:13,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830562665] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:13,366 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:13,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2021-12-06 19:55:13,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437534254] [2021-12-06 19:55:13,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:13,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-12-06 19:55:13,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:13,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-12-06 19:55:13,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-12-06 19:55:13,369 INFO L87 Difference]: Start difference. First operand 94589 states and 108226 transitions. Second operand has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:18,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:18,990 INFO L93 Difference]: Finished difference Result 289856 states and 338922 transitions. [2021-12-06 19:55:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-12-06 19:55:18,991 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 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 187 [2021-12-06 19:55:18,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:19,232 INFO L225 Difference]: With dead ends: 289856 [2021-12-06 19:55:19,233 INFO L226 Difference]: Without dead ends: 289855 [2021-12-06 19:55:19,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-12-06 19:55:19,276 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 724 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:19,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 388 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:55:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289855 states. [2021-12-06 19:55:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289855 to 102720. [2021-12-06 19:55:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102720 states, 102716 states have (on average 1.15056076950037) internal successors, (118181), 102719 states have internal predecessors, (118181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:24,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102720 states to 102720 states and 118181 transitions. [2021-12-06 19:55:24,624 INFO L78 Accepts]: Start accepts. Automaton has 102720 states and 118181 transitions. Word has length 187 [2021-12-06 19:55:24,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:24,624 INFO L470 AbstractCegarLoop]: Abstraction has 102720 states and 118181 transitions. [2021-12-06 19:55:24,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:24,624 INFO L276 IsEmpty]: Start isEmpty. Operand 102720 states and 118181 transitions. [2021-12-06 19:55:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-12-06 19:55:24,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:24,695 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-06 19:55:24,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 19:55:24,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-06 19:55:24,896 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:24,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:24,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2065071413, now seen corresponding path program 5 times [2021-12-06 19:55:24,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:24,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985716157] [2021-12-06 19:55:24,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:24,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:25,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:25,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985716157] [2021-12-06 19:55:25,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985716157] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:25,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530738071] [2021-12-06 19:55:25,495 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 19:55:25,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:25,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:25,496 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:25,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-06 19:55:25,587 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-06 19:55:25,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:25,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-06 19:55:25,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:25,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:27,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530738071] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:27,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:27,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-06 19:55:27,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300335499] [2021-12-06 19:55:27,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:27,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-06 19:55:27,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-06 19:55:27,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-06 19:55:27,297 INFO L87 Difference]: Start difference. First operand 102720 states and 118181 transitions. Second operand has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:35,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:55:35,277 INFO L93 Difference]: Finished difference Result 321844 states and 394478 transitions. [2021-12-06 19:55:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-06 19:55:35,278 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 0 states have call successors, (0), 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 282 [2021-12-06 19:55:35,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:55:35,545 INFO L225 Difference]: With dead ends: 321844 [2021-12-06 19:55:35,545 INFO L226 Difference]: Without dead ends: 321842 [2021-12-06 19:55:35,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-06 19:55:35,590 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 1124 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:55:35,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 699 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:55:35,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321842 states. [2021-12-06 19:55:41,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321842 to 122487. [2021-12-06 19:55:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122487 states, 122483 states have (on average 1.1643575026738404) internal successors, (142614), 122486 states have internal predecessors, (142614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122487 states to 122487 states and 142614 transitions. [2021-12-06 19:55:41,635 INFO L78 Accepts]: Start accepts. Automaton has 122487 states and 142614 transitions. Word has length 282 [2021-12-06 19:55:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:55:41,636 INFO L470 AbstractCegarLoop]: Abstraction has 122487 states and 142614 transitions. [2021-12-06 19:55:41,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:55:41,636 INFO L276 IsEmpty]: Start isEmpty. Operand 122487 states and 142614 transitions. [2021-12-06 19:55:41,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-12-06 19:55:41,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:55:41,706 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2021-12-06 19:55:41,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-06 19:55:41,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 19:55:41,908 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:55:41,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:55:41,909 INFO L85 PathProgramCache]: Analyzing trace with hash -258735500, now seen corresponding path program 5 times [2021-12-06 19:55:41,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:55:41,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317232844] [2021-12-06 19:55:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:55:41,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:55:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:55:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:42,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:55:42,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317232844] [2021-12-06 19:55:42,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317232844] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:55:42,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56798027] [2021-12-06 19:55:42,496 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 19:55:42,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:55:42,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:55:42,497 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:55:42,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-06 19:55:42,590 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-06 19:55:42,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:55:42,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-06 19:55:42,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:55:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:42,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:55:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:55:44,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56798027] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:55:44,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:55:44,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-06 19:55:44,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033814833] [2021-12-06 19:55:44,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:55:44,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-06 19:55:44,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:55:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-06 19:55:44,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-06 19:55:44,265 INFO L87 Difference]: Start difference. First operand 122487 states and 142614 transitions. Second operand has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:56:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:56:15,994 INFO L93 Difference]: Finished difference Result 745145 states and 927241 transitions. [2021-12-06 19:56:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-06 19:56:15,995 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 0 states have call successors, (0), 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 284 [2021-12-06 19:56:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:56:16,556 INFO L225 Difference]: With dead ends: 745145 [2021-12-06 19:56:16,556 INFO L226 Difference]: Without dead ends: 745144 [2021-12-06 19:56:16,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-06 19:56:16,640 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 1257 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:56:16,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 628 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:56:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745144 states. [2021-12-06 19:56:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745144 to 745112. [2021-12-06 19:56:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745112 states, 745108 states have (on average 1.1347495933475416) internal successors, (845511), 745111 states have internal predecessors, (845511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:56:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745112 states to 745112 states and 845511 transitions. [2021-12-06 19:56:56,571 INFO L78 Accepts]: Start accepts. Automaton has 745112 states and 845511 transitions. Word has length 284 [2021-12-06 19:56:56,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:56:56,571 INFO L470 AbstractCegarLoop]: Abstraction has 745112 states and 845511 transitions. [2021-12-06 19:56:56,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:56:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 745112 states and 845511 transitions. [2021-12-06 19:56:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-12-06 19:56:56,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:56:56,792 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 1, 1, 1, 1] [2021-12-06 19:56:56,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-06 19:56:56,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:56:56,993 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 19:56:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:56:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2113926386, now seen corresponding path program 5 times [2021-12-06 19:56:56,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:56:56,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269836305] [2021-12-06 19:56:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:56:56,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:56:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:56:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:56:58,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:56:58,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269836305] [2021-12-06 19:56:58,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269836305] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:56:58,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78997173] [2021-12-06 19:56:58,070 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 19:56:58,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:56:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:56:58,070 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:56:58,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-06 19:56:58,202 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2021-12-06 19:56:58,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:56:58,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-06 19:56:58,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:56:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:56:58,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:57:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:57:01,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78997173] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:57:01,368 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:57:01,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2021-12-06 19:57:01,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217626445] [2021-12-06 19:57:01,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:57:01,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2021-12-06 19:57:01,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:57:01,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-12-06 19:57:01,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2021-12-06 19:57:01,373 INFO L87 Difference]: Start difference. First operand 745112 states and 845511 transitions. Second operand has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:58:33,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:58:33,522 INFO L93 Difference]: Finished difference Result 3410056 states and 3921506 transitions. [2021-12-06 19:58:33,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-12-06 19:58:33,523 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 0 states have call successors, (0), 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 379 [2021-12-06 19:58:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:58:36,857 INFO L225 Difference]: With dead ends: 3410056 [2021-12-06 19:58:36,857 INFO L226 Difference]: Without dead ends: 3410055 [2021-12-06 19:58:37,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 694 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2021-12-06 19:58:37,624 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 1936 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 1663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1663 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:58:37,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1936 Valid, 771 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1663 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:58:39,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410055 states. [2021-12-06 20:00:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410055 to 783715. [2021-12-06 20:00:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783715 states, 783711 states have (on average 1.1381095837623818) internal successors, (891949), 783714 states have internal predecessors, (891949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:00:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783715 states to 783715 states and 891949 transitions. [2021-12-06 20:00:15,726 INFO L78 Accepts]: Start accepts. Automaton has 783715 states and 891949 transitions. Word has length 379 [2021-12-06 20:00:15,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:00:15,726 INFO L470 AbstractCegarLoop]: Abstraction has 783715 states and 891949 transitions. [2021-12-06 20:00:15,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:00:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 783715 states and 891949 transitions. [2021-12-06 20:00:16,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-12-06 20:00:16,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:00:16,558 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2021-12-06 20:00:16,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-06 20:00:16,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:00:16,759 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 20:00:16,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:00:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash 944404347, now seen corresponding path program 6 times [2021-12-06 20:00:16,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:00:16,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646769421] [2021-12-06 20:00:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:00:16,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:00:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:00:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:00:18,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:00:18,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646769421] [2021-12-06 20:00:18,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646769421] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:00:18,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335068039] [2021-12-06 20:00:18,972 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 20:00:18,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:00:18,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:00:18,972 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:00:18,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-06 20:00:19,324 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-06 20:00:19,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:00:19,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-06 20:00:19,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:00:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:00:19,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:00:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:00:25,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335068039] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:00:25,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:00:25,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-06 20:00:25,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889696465] [2021-12-06 20:00:25,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:00:25,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-06 20:00:25,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:00:25,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-06 20:00:25,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-06 20:00:25,687 INFO L87 Difference]: Start difference. First operand 783715 states and 891949 transitions. Second operand has 192 states, 191 states have (on average 5.958115183246074) internal successors, (1138), 192 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:02:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:02:15,116 INFO L93 Difference]: Finished difference Result 2910241 states and 3482114 transitions. [2021-12-06 20:02:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-06 20:02:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.958115183246074) internal successors, (1138), 192 states have internal predecessors, (1138), 0 states have call successors, (0), 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 570 [2021-12-06 20:02:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:02:18,139 INFO L225 Difference]: With dead ends: 2910241 [2021-12-06 20:02:18,139 INFO L226 Difference]: Without dead ends: 2910239 [2021-12-06 20:02:18,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1044 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-06 20:02:18,745 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 2597 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 1705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1705 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:02:18,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2597 Valid, 1399 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1705 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-06 20:02:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910239 states. [2021-12-06 20:03:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910239 to 875714. [2021-12-06 20:03:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875714 states, 875710 states have (on average 1.1465530826415138) internal successors, (1004048), 875713 states have internal predecessors, (1004048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875714 states to 875714 states and 1004048 transitions. [2021-12-06 20:03:56,207 INFO L78 Accepts]: Start accepts. Automaton has 875714 states and 1004048 transitions. Word has length 570 [2021-12-06 20:03:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:03:56,208 INFO L470 AbstractCegarLoop]: Abstraction has 875714 states and 1004048 transitions. [2021-12-06 20:03:56,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.958115183246074) internal successors, (1138), 192 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:03:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 875714 states and 1004048 transitions. [2021-12-06 20:03:57,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-12-06 20:03:57,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:03:57,061 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2021-12-06 20:03:57,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-12-06 20:03:57,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:03:57,263 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 20:03:57,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:03:57,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1334479652, now seen corresponding path program 6 times [2021-12-06 20:03:57,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:03:57,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725002685] [2021-12-06 20:03:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:03:57,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:03:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:03:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:03:59,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:03:59,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725002685] [2021-12-06 20:03:59,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725002685] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:03:59,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753886107] [2021-12-06 20:03:59,278 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 20:03:59,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:03:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:03:59,279 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:03:59,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0db478-ef84-4c1f-b15d-85ee3212c2e0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-06 20:03:59,511 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-06 20:03:59,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:03:59,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-06 20:03:59,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:04:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:04:00,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:04:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:04:05,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753886107] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:04:05,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:04:05,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-06 20:04:05,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682665441] [2021-12-06 20:04:05,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:04:05,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-06 20:04:05,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:04:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-06 20:04:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-06 20:04:05,368 INFO L87 Difference]: Start difference. First operand 875714 states and 1004048 transitions. Second operand has 192 states, 191 states have (on average 5.979057591623037) internal successors, (1142), 192 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)