./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71daa4447a811360729951159d42c752715aafb50c3ad4dcb2ed5d242a4f4a78 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:56:29,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:56:29,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:56:29,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:56:29,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:56:29,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:56:29,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:56:29,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:56:29,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:56:29,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:56:29,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:56:29,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:56:29,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:56:29,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:56:29,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:56:29,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:56:29,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:56:29,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:56:29,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:56:29,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:56:29,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:56:29,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:56:29,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:56:29,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:56:29,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:56:29,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:56:29,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:56:29,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:56:29,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:56:29,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:56:29,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:56:29,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:56:29,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:56:29,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:56:29,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:56:29,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:56:29,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:56:29,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:56:29,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:56:29,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:56:29,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:56:29,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:56:29,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:56:29,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:56:29,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:56:29,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:56:29,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:56:29,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:56:29,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:56:29,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:56:29,605 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:56:29,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:56:29,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:56:29,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:56:29,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:56:29,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:56:29,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:56:29,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:56:29,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:56:29,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:56:29,608 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:56:29,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:56:29,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:56:29,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:56:29,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:56:29,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:56:29,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:56:29,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:56:29,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:29,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:56:29,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:56:29,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:56:29,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:56:29,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:56:29,611 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:56:29,611 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:56:29,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:56:29,612 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_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71daa4447a811360729951159d42c752715aafb50c3ad4dcb2ed5d242a4f4a78 [2022-11-20 10:56:29,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:56:29,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:56:29,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:56:29,989 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:56:29,989 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:56:29,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2022-11-20 10:56:33,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:56:33,398 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:56:33,399 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2022-11-20 10:56:33,417 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/data/6990b9b5f/358fe690d43549fb904edcba2c1e25e5/FLAG879aad952 [2022-11-20 10:56:33,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/data/6990b9b5f/358fe690d43549fb904edcba2c1e25e5 [2022-11-20 10:56:33,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:56:33,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:56:33,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:33,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:56:33,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:56:33,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a38780f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33, skipping insertion in model container [2022-11-20 10:56:33,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:56:33,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:56:33,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:33,832 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:56:33,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:33,899 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:56:33,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33 WrapperNode [2022-11-20 10:56:33,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:33,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:33,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:56:33,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:56:33,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,951 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-11-20 10:56:33,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:33,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:56:33,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:56:33,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:56:33,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,975 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:56:33,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:56:33,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:56:33,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:56:33,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (1/1) ... [2022-11-20 10:56:33,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:34,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:34,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:56:34,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:56:34,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:56:34,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:56:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:56:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:56:34,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:56:34,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:56:34,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:56:34,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:56:34,468 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:56:34,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:56:34,475 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:56:34,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:34 BoogieIcfgContainer [2022-11-20 10:56:34,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:56:34,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:56:34,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:56:34,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:56:34,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:56:33" (1/3) ... [2022-11-20 10:56:34,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913cea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:34, skipping insertion in model container [2022-11-20 10:56:34,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:33" (2/3) ... [2022-11-20 10:56:34,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913cea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:34, skipping insertion in model container [2022-11-20 10:56:34,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:34" (3/3) ... [2022-11-20 10:56:34,498 INFO L112 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca-2.i [2022-11-20 10:56:34,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:56:34,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-20 10:56:34,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:56:34,577 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f37a97f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:56:34,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-20 10:56:34,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 43 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) [2022-11-20 10:56:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:56:34,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:34,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:34,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1804971307, now seen corresponding path program 1 times [2022-11-20 10:56:34,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:34,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172468596] [2022-11-20 10:56:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:34,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:34,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172468596] [2022-11-20 10:56:34,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172468596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:34,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:34,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:34,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836152831] [2022-11-20 10:56:34,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:34,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:34,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:34,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:34,894 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 43 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) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-20 10:56:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:34,986 INFO L93 Difference]: Finished difference Result 118 states and 135 transitions. [2022-11-20 10:56:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:34,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-11-20 10:56:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:34,996 INFO L225 Difference]: With dead ends: 118 [2022-11-20 10:56:34,997 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 10:56:34,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:35,003 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 40 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:35,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 125 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:35,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 10:56:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 44. [2022-11-20 10:56:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-20 10:56:35,041 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 7 [2022-11-20 10:56:35,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:35,042 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-20 10:56:35,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-20 10:56:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-20 10:56:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:56:35,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:35,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:35,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:56:35,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:35,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:35,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1804969641, now seen corresponding path program 1 times [2022-11-20 10:56:35,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:35,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026008822] [2022-11-20 10:56:35,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:35,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:35,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:35,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026008822] [2022-11-20 10:56:35,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026008822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:35,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:35,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:56:35,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622377526] [2022-11-20 10:56:35,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:35,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:35,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:35,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:35,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:35,194 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-20 10:56:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:35,250 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2022-11-20 10:56:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:35,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 [2022-11-20 10:56:35,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:35,254 INFO L225 Difference]: With dead ends: 74 [2022-11-20 10:56:35,254 INFO L226 Difference]: Without dead ends: 44 [2022-11-20 10:56:35,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:35,256 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 44 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:35,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 75 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:35,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-20 10:56:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-20 10:56:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.6) internal successors, (48), 43 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) [2022-11-20 10:56:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-20 10:56:35,264 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 7 [2022-11-20 10:56:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:35,264 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-20 10:56:35,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-20 10:56:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-20 10:56:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:56:35,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:35,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:35,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:56:35,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:35,267 INFO L85 PathProgramCache]: Analyzing trace with hash 560852455, now seen corresponding path program 1 times [2022-11-20 10:56:35,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:35,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313515261] [2022-11-20 10:56:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:35,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:35,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:35,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313515261] [2022-11-20 10:56:35,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313515261] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:35,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820959392] [2022-11-20 10:56:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:35,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:35,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:35,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:35,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:56:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:35,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:56:35,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:35,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:35,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820959392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:35,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:56:35,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 10:56:35,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268270971] [2022-11-20 10:56:35,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:35,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:56:35,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:35,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:56:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:56:35,678 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:35,773 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2022-11-20 10:56:35,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:56:35,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 10:56:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:35,779 INFO L225 Difference]: With dead ends: 116 [2022-11-20 10:56:35,779 INFO L226 Difference]: Without dead ends: 80 [2022-11-20 10:56:35,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:56:35,780 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 70 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:35,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 141 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-20 10:56:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 50. [2022-11-20 10:56:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.5) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-20 10:56:35,787 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 11 [2022-11-20 10:56:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:35,787 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-20 10:56:35,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:35,788 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-20 10:56:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:56:35,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:35,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:35,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:35,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-20 10:56:35,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:35,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:35,996 INFO L85 PathProgramCache]: Analyzing trace with hash 560850789, now seen corresponding path program 1 times [2022-11-20 10:56:35,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:35,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978926257] [2022-11-20 10:56:35,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:35,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:36,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:36,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978926257] [2022-11-20 10:56:36,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978926257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:36,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:36,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:36,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425084276] [2022-11-20 10:56:36,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:36,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:36,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:36,154 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:36,209 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2022-11-20 10:56:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:56:36,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 10:56:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:36,210 INFO L225 Difference]: With dead ends: 80 [2022-11-20 10:56:36,212 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 10:56:36,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:36,216 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 61 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:36,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 110 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 10:56:36,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 52. [2022-11-20 10:56:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-11-20 10:56:36,233 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 11 [2022-11-20 10:56:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:36,234 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-11-20 10:56:36,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-11-20 10:56:36,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:56:36,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:36,236 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:36,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:56:36,237 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:36,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1240910825, now seen corresponding path program 1 times [2022-11-20 10:56:36,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:36,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893633625] [2022-11-20 10:56:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:36,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:36,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:36,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893633625] [2022-11-20 10:56:36,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893633625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:36,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291421289] [2022-11-20 10:56:36,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:36,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:36,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:36,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:36,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:56:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:36,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:56:36,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:36,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:36,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291421289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:36,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:36,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 10:56:36,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55658262] [2022-11-20 10:56:36,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:36,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:56:36,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:36,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:56:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:56:36,596 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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) [2022-11-20 10:56:36,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:36,753 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2022-11-20 10:56:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:56:36,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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 11 [2022-11-20 10:56:36,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:36,760 INFO L225 Difference]: With dead ends: 158 [2022-11-20 10:56:36,760 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 10:56:36,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:56:36,762 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 191 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:36,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 247 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 10:56:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 63. [2022-11-20 10:56:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.469387755102041) internal successors, (72), 62 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2022-11-20 10:56:36,784 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 11 [2022-11-20 10:56:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:36,785 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2022-11-20 10:56:36,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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) [2022-11-20 10:56:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2022-11-20 10:56:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:56:36,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:36,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:36,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:36,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:36,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:36,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1240909159, now seen corresponding path program 1 times [2022-11-20 10:56:36,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:36,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970730250] [2022-11-20 10:56:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:37,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970730250] [2022-11-20 10:56:37,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970730250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:37,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434678019] [2022-11-20 10:56:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:37,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:37,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:37,067 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:37,091 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-11-20 10:56:37,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 10:56:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:37,094 INFO L225 Difference]: With dead ends: 63 [2022-11-20 10:56:37,094 INFO L226 Difference]: Without dead ends: 62 [2022-11-20 10:56:37,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:37,098 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 63 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:37,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 42 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:37,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-20 10:56:37,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2022-11-20 10:56:37,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 59 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-11-20 10:56:37,116 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 11 [2022-11-20 10:56:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:37,116 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-11-20 10:56:37,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-11-20 10:56:37,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 10:56:37,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:37,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:37,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:56:37,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:37,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash 206505336, now seen corresponding path program 1 times [2022-11-20 10:56:37,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:37,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226625920] [2022-11-20 10:56:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:37,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226625920] [2022-11-20 10:56:37,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226625920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:37,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:37,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992293908] [2022-11-20 10:56:37,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:37,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:37,175 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:37,196 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2022-11-20 10:56:37,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:37,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 10:56:37,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:37,197 INFO L225 Difference]: With dead ends: 60 [2022-11-20 10:56:37,197 INFO L226 Difference]: Without dead ends: 59 [2022-11-20 10:56:37,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:37,198 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 60 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:37,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 46 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:37,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-20 10:56:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-20 10:56:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.446808510638298) internal successors, (68), 58 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2022-11-20 10:56:37,204 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 12 [2022-11-20 10:56:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:37,204 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2022-11-20 10:56:37,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2022-11-20 10:56:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 10:56:37,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:37,205 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:37,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:56:37,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:37,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:37,206 INFO L85 PathProgramCache]: Analyzing trace with hash -186470036, now seen corresponding path program 1 times [2022-11-20 10:56:37,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:37,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443477348] [2022-11-20 10:56:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443477348] [2022-11-20 10:56:37,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443477348] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:37,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251196639] [2022-11-20 10:56:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:37,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:37,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:37,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:56:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:56:37,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:37,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:37,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251196639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:56:37,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 10:56:37,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833741582] [2022-11-20 10:56:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:56:37,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:56:37,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:56:37,381 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:37,421 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2022-11-20 10:56:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:56:37,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 10:56:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:37,422 INFO L225 Difference]: With dead ends: 59 [2022-11-20 10:56:37,422 INFO L226 Difference]: Without dead ends: 58 [2022-11-20 10:56:37,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:56:37,424 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 70 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:37,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 72 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:37,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-20 10:56:37,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-20 10:56:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 57 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-11-20 10:56:37,435 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 12 [2022-11-20 10:56:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:37,435 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-11-20 10:56:37,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-11-20 10:56:37,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 10:56:37,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:37,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:37,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:37,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:37,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:37,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1607365679, now seen corresponding path program 1 times [2022-11-20 10:56:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:37,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122648293] [2022-11-20 10:56:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:37,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122648293] [2022-11-20 10:56:37,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122648293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:37,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:56:37,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413790298] [2022-11-20 10:56:37,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:37,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:37,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:37,678 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:37,717 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2022-11-20 10:56:37,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:37,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 10:56:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:37,718 INFO L225 Difference]: With dead ends: 83 [2022-11-20 10:56:37,718 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 10:56:37,718 INFO L412 NwaCegarLoop]: 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 [2022-11-20 10:56:37,719 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:37,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 10:56:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 66. [2022-11-20 10:56:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 65 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2022-11-20 10:56:37,724 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 15 [2022-11-20 10:56:37,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:37,725 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2022-11-20 10:56:37,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,725 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2022-11-20 10:56:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 10:56:37,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:37,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:37,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:56:37,726 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:37,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:37,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1711272544, now seen corresponding path program 1 times [2022-11-20 10:56:37,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:37,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465135206] [2022-11-20 10:56:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:37,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465135206] [2022-11-20 10:56:37,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465135206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:37,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:56:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648870358] [2022-11-20 10:56:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:56:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:56:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:37,774 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:37,864 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2022-11-20 10:56:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:56:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 10:56:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:37,865 INFO L225 Difference]: With dead ends: 110 [2022-11-20 10:56:37,865 INFO L226 Difference]: Without dead ends: 77 [2022-11-20 10:56:37,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:56:37,866 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 24 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:37,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 104 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-20 10:56:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2022-11-20 10:56:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 60 states have (on average 1.35) internal successors, (81), 70 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2022-11-20 10:56:37,872 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 16 [2022-11-20 10:56:37,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:37,873 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2022-11-20 10:56:37,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2022-11-20 10:56:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 10:56:37,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:37,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:37,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:56:37,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:37,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:37,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1509841204, now seen corresponding path program 1 times [2022-11-20 10:56:37,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:37,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363953605] [2022-11-20 10:56:37,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:37,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363953605] [2022-11-20 10:56:37,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363953605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:37,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:37,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110363800] [2022-11-20 10:56:37,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:37,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:37,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:37,911 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:37,932 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2022-11-20 10:56:37,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:37,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 10:56:37,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:37,933 INFO L225 Difference]: With dead ends: 71 [2022-11-20 10:56:37,933 INFO L226 Difference]: Without dead ends: 65 [2022-11-20 10:56:37,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:37,934 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:37,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 79 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-20 10:56:37,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-20 10:56:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 64 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2022-11-20 10:56:37,939 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 17 [2022-11-20 10:56:37,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:37,939 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2022-11-20 10:56:37,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:37,939 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2022-11-20 10:56:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 10:56:37,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:37,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:37,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:56:37,940 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:37,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:37,941 INFO L85 PathProgramCache]: Analyzing trace with hash 774964126, now seen corresponding path program 1 times [2022-11-20 10:56:37,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:37,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771958778] [2022-11-20 10:56:37,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:37,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:37,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:37,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771958778] [2022-11-20 10:56:37,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771958778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:37,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:37,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810696914] [2022-11-20 10:56:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:37,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:37,986 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:38,045 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-11-20 10:56:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:38,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-20 10:56:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:38,047 INFO L225 Difference]: With dead ends: 70 [2022-11-20 10:56:38,047 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 10:56:38,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:38,048 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:38,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 79 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:38,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 10:56:38,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-20 10:56:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 67 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2022-11-20 10:56:38,053 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 19 [2022-11-20 10:56:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:38,053 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2022-11-20 10:56:38,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:38,053 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2022-11-20 10:56:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:56:38,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:38,054 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:38,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:56:38,054 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:38,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:38,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1507160232, now seen corresponding path program 1 times [2022-11-20 10:56:38,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:38,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963437123] [2022-11-20 10:56:38,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:38,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:38,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:38,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963437123] [2022-11-20 10:56:38,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963437123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:38,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839199035] [2022-11-20 10:56:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:38,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:38,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:38,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:38,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:56:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:38,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:56:38,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:56:38,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:38,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839199035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:38,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:56:38,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2022-11-20 10:56:38,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277506751] [2022-11-20 10:56:38,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:38,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:56:38,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:38,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:56:38,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:56:38,285 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) 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) [2022-11-20 10:56:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:38,351 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2022-11-20 10:56:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:56:38,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) 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 22 [2022-11-20 10:56:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:38,352 INFO L225 Difference]: With dead ends: 108 [2022-11-20 10:56:38,352 INFO L226 Difference]: Without dead ends: 62 [2022-11-20 10:56:38,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:56:38,353 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:38,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 129 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:38,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-20 10:56:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-20 10:56:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-11-20 10:56:38,359 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 22 [2022-11-20 10:56:38,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:38,359 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-11-20 10:56:38,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) 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) [2022-11-20 10:56:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-11-20 10:56:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:56:38,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:38,361 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:38,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:38,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 10:56:38,566 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:38,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash 689511782, now seen corresponding path program 1 times [2022-11-20 10:56:38,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:38,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245235485] [2022-11-20 10:56:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:38,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:38,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:38,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245235485] [2022-11-20 10:56:38,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245235485] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:38,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937438515] [2022-11-20 10:56:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:38,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:38,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:38,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:38,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:56:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:38,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:56:38,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:38,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:38,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937438515] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:38,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:38,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 13 [2022-11-20 10:56:38,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090149587] [2022-11-20 10:56:38,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:38,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:56:38,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:38,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:56:38,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:56:38,872 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:39,136 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2022-11-20 10:56:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:56:39,137 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-20 10:56:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:39,137 INFO L225 Difference]: With dead ends: 120 [2022-11-20 10:56:39,138 INFO L226 Difference]: Without dead ends: 80 [2022-11-20 10:56:39,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:56:39,139 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 61 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:39,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 155 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:56:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-20 10:56:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2022-11-20 10:56:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 68 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-20 10:56:39,144 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 22 [2022-11-20 10:56:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:39,144 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-20 10:56:39,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-20 10:56:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 10:56:39,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:39,145 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-11-20 10:56:39,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:39,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 10:56:39,351 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:39,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:39,351 INFO L85 PathProgramCache]: Analyzing trace with hash -868473059, now seen corresponding path program 2 times [2022-11-20 10:56:39,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:39,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287236334] [2022-11-20 10:56:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:39,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:39,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:39,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287236334] [2022-11-20 10:56:39,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287236334] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:39,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690651426] [2022-11-20 10:56:39,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:56:39,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:39,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:39,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:56:39,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:56:39,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:56:39,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:56:39,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 10:56:39,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 10:56:39,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690651426] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:39,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:39,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-11-20 10:56:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90914969] [2022-11-20 10:56:39,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:39,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:56:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:56:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:56:39,727 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:39,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:39,959 INFO L93 Difference]: Finished difference Result 255 states and 296 transitions. [2022-11-20 10:56:39,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:56:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 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 23 [2022-11-20 10:56:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:39,961 INFO L225 Difference]: With dead ends: 255 [2022-11-20 10:56:39,961 INFO L226 Difference]: Without dead ends: 254 [2022-11-20 10:56:39,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:56:39,962 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 335 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:39,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 261 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:39,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-11-20 10:56:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 58. [2022-11-20 10:56:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.346938775510204) internal successors, (66), 57 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2022-11-20 10:56:39,971 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 23 [2022-11-20 10:56:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:39,971 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2022-11-20 10:56:39,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2022-11-20 10:56:39,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:56:39,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:39,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:39,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:40,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:40,179 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:40,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:40,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1555004667, now seen corresponding path program 1 times [2022-11-20 10:56:40,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:40,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708961048] [2022-11-20 10:56:40,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:40,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:56:40,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:40,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708961048] [2022-11-20 10:56:40,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708961048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:40,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655522036] [2022-11-20 10:56:40,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:40,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:40,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:40,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:40,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:56:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:40,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:56:40,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 10:56:40,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:40,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655522036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:40,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:56:40,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-11-20 10:56:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656192050] [2022-11-20 10:56:40,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:40,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:56:40,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:40,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:56:40,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:56:40,505 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:40,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:40,573 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2022-11-20 10:56:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:56:40,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 27 [2022-11-20 10:56:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:40,576 INFO L225 Difference]: With dead ends: 58 [2022-11-20 10:56:40,576 INFO L226 Difference]: Without dead ends: 57 [2022-11-20 10:56:40,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:56:40,577 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 70 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:40,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 59 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:40,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-20 10:56:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-20 10:56:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 56 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2022-11-20 10:56:40,586 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 27 [2022-11-20 10:56:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:40,586 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2022-11-20 10:56:40,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2022-11-20 10:56:40,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:56:40,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:40,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:40,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:40,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 10:56:40,801 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:40,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:40,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1555003545, now seen corresponding path program 1 times [2022-11-20 10:56:40,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:40,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836542178] [2022-11-20 10:56:40,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:40,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:56:40,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:40,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836542178] [2022-11-20 10:56:40,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836542178] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:40,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128829357] [2022-11-20 10:56:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:40,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:40,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:40,860 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:40,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:56:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:40,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:56:40,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:56:40,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:40,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128829357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:40,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:56:40,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-20 10:56:40,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102347654] [2022-11-20 10:56:40,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:40,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:56:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:40,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:56:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:56:40,969 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:41,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:41,042 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2022-11-20 10:56:41,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:56:41,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 27 [2022-11-20 10:56:41,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:41,045 INFO L225 Difference]: With dead ends: 58 [2022-11-20 10:56:41,045 INFO L226 Difference]: Without dead ends: 54 [2022-11-20 10:56:41,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:56:41,046 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 33 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:41,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 54 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:41,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-20 10:56:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2022-11-20 10:56:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-11-20 10:56:41,053 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 27 [2022-11-20 10:56:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:41,053 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-11-20 10:56:41,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-11-20 10:56:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:56:41,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:41,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:41,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:41,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 10:56:41,269 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:41,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:41,270 INFO L85 PathProgramCache]: Analyzing trace with hash 406738969, now seen corresponding path program 1 times [2022-11-20 10:56:41,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:41,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768220781] [2022-11-20 10:56:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:41,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:56:41,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:41,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768220781] [2022-11-20 10:56:41,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768220781] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:41,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910312158] [2022-11-20 10:56:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:41,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:41,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:41,343 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:41,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:56:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:41,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:56:41,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:41,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:41,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910312158] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:41,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:41,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 20 [2022-11-20 10:56:41,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443807344] [2022-11-20 10:56:41,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:56:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:41,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:56:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:56:41,721 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 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) [2022-11-20 10:56:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:42,272 INFO L93 Difference]: Finished difference Result 169 states and 190 transitions. [2022-11-20 10:56:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:56:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 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 30 [2022-11-20 10:56:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:42,273 INFO L225 Difference]: With dead ends: 169 [2022-11-20 10:56:42,273 INFO L226 Difference]: Without dead ends: 132 [2022-11-20 10:56:42,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 38 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=226, Invalid=1106, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 10:56:42,276 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 293 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:42,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 180 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:56:42,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-20 10:56:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 76. [2022-11-20 10:56:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 75 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) [2022-11-20 10:56:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2022-11-20 10:56:42,287 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 30 [2022-11-20 10:56:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:42,288 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2022-11-20 10:56:42,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 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) [2022-11-20 10:56:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2022-11-20 10:56:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 10:56:42,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:42,290 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:42,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:42,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 10:56:42,490 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:42,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:42,491 INFO L85 PathProgramCache]: Analyzing trace with hash -696253687, now seen corresponding path program 2 times [2022-11-20 10:56:42,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:42,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516075810] [2022-11-20 10:56:42,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:42,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:56:42,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516075810] [2022-11-20 10:56:42,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516075810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:42,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:42,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:42,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462200229] [2022-11-20 10:56:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:42,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:42,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:42,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:42,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:42,574 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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) [2022-11-20 10:56:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:42,610 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2022-11-20 10:56:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:56:42,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 37 [2022-11-20 10:56:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:42,612 INFO L225 Difference]: With dead ends: 77 [2022-11-20 10:56:42,612 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 10:56:42,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:42,613 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:42,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 50 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:56:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 10:56:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2022-11-20 10:56:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.125) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:42,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2022-11-20 10:56:42,622 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 37 [2022-11-20 10:56:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:42,622 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2022-11-20 10:56:42,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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) [2022-11-20 10:56:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2022-11-20 10:56:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 10:56:42,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:42,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:42,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 10:56:42,624 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:42,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1049913992, now seen corresponding path program 2 times [2022-11-20 10:56:42,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:42,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896944060] [2022-11-20 10:56:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 10:56:42,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:42,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896944060] [2022-11-20 10:56:42,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896944060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:42,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378886095] [2022-11-20 10:56:42,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:56:42,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:42,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:42,734 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:42,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:56:42,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:56:42,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:56:42,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:56:42,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 10:56:42,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 10:56:43,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378886095] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:43,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:43,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-11-20 10:56:43,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224147435] [2022-11-20 10:56:43,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:43,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:56:43,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:56:43,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:56:43,036 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 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) [2022-11-20 10:56:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:43,448 INFO L93 Difference]: Finished difference Result 158 states and 181 transitions. [2022-11-20 10:56:43,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 10:56:43,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 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 41 [2022-11-20 10:56:43,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:43,449 INFO L225 Difference]: With dead ends: 158 [2022-11-20 10:56:43,449 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 10:56:43,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 74 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-11-20 10:56:43,451 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 428 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:43,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 75 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 10:56:43,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 108. [2022-11-20 10:56:43,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 107 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2022-11-20 10:56:43,464 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 41 [2022-11-20 10:56:43,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:43,464 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2022-11-20 10:56:43,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 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) [2022-11-20 10:56:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2022-11-20 10:56:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 10:56:43,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:43,466 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:43,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:43,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-11-20 10:56:43,671 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:43,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:43,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1912302703, now seen corresponding path program 1 times [2022-11-20 10:56:43,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:43,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658933176] [2022-11-20 10:56:43,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 10:56:43,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:43,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658933176] [2022-11-20 10:56:43,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658933176] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:43,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726175190] [2022-11-20 10:56:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:43,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:43,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:43,912 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:43,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 10:56:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:44,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:56:44,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:44,115 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 10:56:44,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 10:56:44,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726175190] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:44,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:44,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2022-11-20 10:56:44,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985405490] [2022-11-20 10:56:44,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:44,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 10:56:44,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:44,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 10:56:44,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:56:44,242 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:44,478 INFO L93 Difference]: Finished difference Result 175 states and 198 transitions. [2022-11-20 10:56:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:56:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-11-20 10:56:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:44,480 INFO L225 Difference]: With dead ends: 175 [2022-11-20 10:56:44,480 INFO L226 Difference]: Without dead ends: 95 [2022-11-20 10:56:44,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 113 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2022-11-20 10:56:44,481 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 84 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:44,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 190 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:56:44,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-20 10:56:44,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2022-11-20 10:56:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.1428571428571428) internal successors, (104), 91 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2022-11-20 10:56:44,491 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 63 [2022-11-20 10:56:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:44,491 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2022-11-20 10:56:44,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:44,492 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2022-11-20 10:56:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 10:56:44,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:44,493 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:44,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:44,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-20 10:56:44,703 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:44,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:44,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2124548053, now seen corresponding path program 2 times [2022-11-20 10:56:44,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:44,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101202652] [2022-11-20 10:56:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:44,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 10:56:44,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:44,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101202652] [2022-11-20 10:56:44,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101202652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:44,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429896030] [2022-11-20 10:56:44,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:56:44,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:44,932 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:44,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 10:56:45,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:56:45,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:56:45,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:56:45,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 10:56:45,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 10:56:45,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429896030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:45,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:45,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 18 [2022-11-20 10:56:45,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415657048] [2022-11-20 10:56:45,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:45,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:56:45,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:45,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:56:45,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:56:45,302 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:45,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:45,628 INFO L93 Difference]: Finished difference Result 175 states and 199 transitions. [2022-11-20 10:56:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:56:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-20 10:56:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:45,631 INFO L225 Difference]: With dead ends: 175 [2022-11-20 10:56:45,631 INFO L226 Difference]: Without dead ends: 116 [2022-11-20 10:56:45,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 119 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2022-11-20 10:56:45,632 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 378 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:45,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 66 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:56:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-20 10:56:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2022-11-20 10:56:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.1372549019607843) internal successors, (116), 102 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2022-11-20 10:56:45,644 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 67 [2022-11-20 10:56:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:45,644 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2022-11-20 10:56:45,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2022-11-20 10:56:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 10:56:45,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:45,645 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:45,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:45,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:45,851 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-20 10:56:45,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1561094416, now seen corresponding path program 3 times [2022-11-20 10:56:45,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:45,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509157431] [2022-11-20 10:56:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 64 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 10:56:46,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:46,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509157431] [2022-11-20 10:56:46,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509157431] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:56:46,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406913953] [2022-11-20 10:56:46,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:56:46,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:46,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:46,167 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:56:46,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 10:56:46,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 10:56:46,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:56:46,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:56:46,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 64 proven. 30 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-20 10:56:46,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 64 proven. 30 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-20 10:56:46,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406913953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:46,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:56:46,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 28 [2022-11-20 10:56:46,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129122717] [2022-11-20 10:56:46,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:46,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-20 10:56:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:46,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-20 10:56:46,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2022-11-20 10:56:46,657 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 29 states, 28 states have (on average 4.0) internal successors, (112), 29 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:47,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:47,771 INFO L93 Difference]: Finished difference Result 218 states and 247 transitions. [2022-11-20 10:56:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-20 10:56:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.0) internal successors, (112), 29 states have internal predecessors, (112), 0 states have call successors, (0), 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 74 [2022-11-20 10:56:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:47,771 INFO L225 Difference]: With dead ends: 218 [2022-11-20 10:56:47,772 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:56:47,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=825, Invalid=3597, Unknown=0, NotChecked=0, Total=4422 [2022-11-20 10:56:47,774 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 543 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:47,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 77 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:56:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:56:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:56:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:47,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:56:47,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2022-11-20 10:56:47,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:47,775 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:56:47,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.0) internal successors, (112), 29 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:56:47,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:56:47,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-20 10:56:47,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-20 10:56:47,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-20 10:56:47,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-20 10:56:47,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-20 10:56:47,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-20 10:56:47,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-20 10:56:47,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-20 10:56:47,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-20 10:56:47,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-20 10:56:47,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-20 10:56:47,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-20 10:56:47,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-20 10:56:47,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-20 10:56:47,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:47,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:56:47,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:57:07,493 WARN L233 SmtUtils]: Spent 17.91s on a formula simplification. DAG size of input: 94 DAG size of output: 84 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 10:57:08,436 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,436 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 529) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L527-2(lines 527 529) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 516) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 518) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L519-1(line 519) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L515-1(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 532) no Hoare annotation was computed. [2022-11-20 10:57:08,437 INFO L899 garLoopResultBuilder]: For program point L515-4(lines 515 523) no Hoare annotation was computed. [2022-11-20 10:57:08,438 INFO L899 garLoopResultBuilder]: For program point L515-5(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,438 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:57:08,438 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2022-11-20 10:57:08,438 INFO L899 garLoopResultBuilder]: For program point L515-6(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,438 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:57:08,438 INFO L895 garLoopResultBuilder]: At program point L515-7(lines 515 523) the Hoare annotation is: (let ((.cse6 (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646)) (.cse0 (<= 1 |ULTIMATE.start_bubbleSort_~array_size#1|)) (.cse1 (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_bubbleSort_~i~0#1| 0)) (.cse4 (<= 1 |ULTIMATE.start_main_~k~0#1|)) (.cse5 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~array_size~0#1| 1) .cse2 .cse3 (<= |ULTIMATE.start_bubbleSort_~array_size#1| 1) .cse4 .cse5) (and (<= |ULTIMATE.start_main_~array_size~0#1| 2) .cse0 (<= |ULTIMATE.start_bubbleSort_~i~0#1| 1) .cse1 (<= |ULTIMATE.start_main_~k~0#1| 2) .cse2 (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2) .cse4 .cse6 .cse5) (and .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~k~0#1|) .cse2 (<= 3 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 3 |ULTIMATE.start_main_~array_size~0#1|) .cse4 .cse6 .cse5) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_bubbleSort_~j~0#1| 1) .cse4 .cse5))) [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point L532-2(lines 532 535) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point L532-3(line 532) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point L532-4(line 532) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L895 garLoopResultBuilder]: At program point L532-5(lines 532 535) the Hoare annotation is: (let ((.cse1 (<= 1 |ULTIMATE.start_main_~k~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse2 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and (<= |ULTIMATE.start_main_~k~0#1| 2) .cse0 .cse1 .cse2) (and .cse0 (<= 3 |ULTIMATE.start_main_~array_size~0#1|) .cse1 .cse2) (and .cse0 (= |ULTIMATE.start_main_~k~0#1| 0) .cse2))) [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point L532-6(lines 532 535) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point L516-2(lines 516 522) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 532) no Hoare annotation was computed. [2022-11-20 10:57:08,439 INFO L899 garLoopResultBuilder]: For program point L516-3(line 516) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point L516-4(line 516) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 524) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L895 garLoopResultBuilder]: At program point L516-5(lines 516 522) the Hoare annotation is: (let ((.cse7 (<= 2 |ULTIMATE.start_main_~k~0#1|)) (.cse8 (<= 2 |ULTIMATE.start_bubbleSort_~j~0#1|)) (.cse9 (<= 3 |ULTIMATE.start_bubbleSort_~array_size#1|)) (.cse10 (<= 3 |ULTIMATE.start_main_~array_size~0#1|)) (.cse11 (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646)) (.cse12 (<= |ULTIMATE.start_main_~array_size~0#1| 2)) (.cse0 (<= 1 |ULTIMATE.start_bubbleSort_~array_size#1|)) (.cse13 (<= |ULTIMATE.start_bubbleSort_~i~0#1| 1)) (.cse1 (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647)) (.cse14 (<= |ULTIMATE.start_main_~k~0#1| 2)) (.cse2 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse3 (<= 0 |ULTIMATE.start_bubbleSort_~i~0#1|)) (.cse4 (= |ULTIMATE.start_bubbleSort_~j~0#1| 1)) (.cse15 (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2)) (.cse5 (<= 1 |ULTIMATE.start_main_~k~0#1|)) (.cse6 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_bubbleSort_~i~0#1| 0) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= 2 |ULTIMATE.start_bubbleSort_~i~0#1|) .cse8 .cse2 .cse3 .cse9 .cse10 (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483647) .cse5 .cse11 .cse6) (and .cse0 .cse1 .cse7 .cse2 .cse3 .cse9 .cse10 .cse4 .cse5 .cse11 .cse6) (and .cse12 .cse0 .cse13 .cse1 .cse14 .cse8 .cse2 .cse3 .cse15 .cse5 (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2) .cse6) (and .cse0 .cse1 .cse7 .cse8 .cse2 .cse3 (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483646) .cse9 .cse10 .cse5 .cse11 .cse6) (and .cse12 .cse0 .cse13 .cse1 .cse14 .cse2 .cse3 .cse4 .cse15 .cse5 .cse6))) [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-11-20 10:57:08,440 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point L517-1(line 517) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point L517-2(lines 517 521) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 515) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L902 garLoopResultBuilder]: At program point L538(lines 525 539) the Hoare annotation is: true [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 516) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 518) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2022-11-20 10:57:08,441 INFO L899 garLoopResultBuilder]: For program point L518-1(line 518) no Hoare annotation was computed. [2022-11-20 10:57:08,446 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:08,448 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:57:08,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:57:08 BoogieIcfgContainer [2022-11-20 10:57:08,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:57:08,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:57:08,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:57:08,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:57:08,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:34" (3/4) ... [2022-11-20 10:57:08,489 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:57:08,501 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 10:57:08,501 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:57:08,501 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:57:08,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:57:08,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:57:08,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:57:08,556 INFO L158 Benchmark]: Toolchain (without parser) took 35110.46ms. Allocated memory was 190.8MB in the beginning and 578.8MB in the end (delta: 388.0MB). Free memory was 153.5MB in the beginning and 375.1MB in the end (delta: -221.6MB). Peak memory consumption was 167.0MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,557 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:57:08,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.52ms. Allocated memory is still 190.8MB. Free memory was 153.5MB in the beginning and 150.7MB in the end (delta: 2.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.51ms. Allocated memory is still 190.8MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,559 INFO L158 Benchmark]: Boogie Preprocessor took 26.41ms. Allocated memory is still 190.8MB. Free memory was 148.6MB in the beginning and 147.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,559 INFO L158 Benchmark]: RCFGBuilder took 499.01ms. Allocated memory is still 190.8MB. Free memory was 147.0MB in the beginning and 134.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,562 INFO L158 Benchmark]: TraceAbstraction took 34004.78ms. Allocated memory was 190.8MB in the beginning and 578.8MB in the end (delta: 388.0MB). Free memory was 133.4MB in the beginning and 378.2MB in the end (delta: -244.8MB). Peak memory consumption was 325.7MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,562 INFO L158 Benchmark]: Witness Printer took 65.47ms. Allocated memory is still 578.8MB. Free memory was 378.2MB in the beginning and 375.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:08,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.52ms. Allocated memory is still 190.8MB. Free memory was 153.5MB in the beginning and 150.7MB in the end (delta: 2.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.51ms. Allocated memory is still 190.8MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.41ms. Allocated memory is still 190.8MB. Free memory was 148.6MB in the beginning and 147.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 499.01ms. Allocated memory is still 190.8MB. Free memory was 147.0MB in the beginning and 134.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34004.78ms. Allocated memory was 190.8MB in the beginning and 578.8MB in the end (delta: 388.0MB). Free memory was 133.4MB in the beginning and 378.2MB in the end (delta: -244.8MB). Peak memory consumption was 325.7MB. Max. memory is 16.1GB. * Witness Printer took 65.47ms. Allocated memory is still 578.8MB. Free memory was 378.2MB in the beginning and 375.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 532]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 532]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 515]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 33.9s, OverallIterations: 23, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 20.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2920 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2920 mSDsluCounter, 2472 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1844 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2287 IncrementalHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 628 mSDtfsCounter, 2287 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1017 GetRequests, 657 SyntacticMatches, 41 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1917 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=20, InterpolantAutomatonStates: 235, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 530 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 48 NumberOfFragments, 353 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1324483 FormulaSimplificationTreeSizeReduction, 19.5s HoareSimplificationTime, 4 FomulaSimplificationsInter, 188967 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1299 ConstructedInterpolants, 0 QuantifiedInterpolants, 3056 SizeOfPredicates, 71 NumberOfNonLiveVariables, 1167 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 44 InterpolantComputations, 15 PerfectInterpolantSequences, 1248/1546 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: (((((((((((1 <= array_size && array_size <= 2147483647) && array_size <= 2147483647) && 0 <= i) && i <= 0) && j == 1) && 1 <= k) && 1 <= array_size) || ((((((((((((1 <= array_size && array_size <= 2147483647) && 2 <= k) && 2 <= i) && 2 <= j) && array_size <= 2147483647) && 0 <= i) && 3 <= array_size) && 3 <= array_size) && j <= 2147483647) && 1 <= k) && i <= 2147483646) && 1 <= array_size)) || ((((((((((1 <= array_size && array_size <= 2147483647) && 2 <= k) && array_size <= 2147483647) && 0 <= i) && 3 <= array_size) && 3 <= array_size) && j == 1) && 1 <= k) && i <= 2147483646) && 1 <= array_size)) || (((((((((((array_size <= 2 && 1 <= array_size) && i <= 1) && array_size <= 2147483647) && k <= 2) && 2 <= j) && array_size <= 2147483647) && 0 <= i) && array_size <= 2) && 1 <= k) && j <= 2) && 1 <= array_size)) || (((((((((((1 <= array_size && array_size <= 2147483647) && 2 <= k) && 2 <= j) && array_size <= 2147483647) && 0 <= i) && j <= 2147483646) && 3 <= array_size) && 3 <= array_size) && 1 <= k) && i <= 2147483646) && 1 <= array_size)) || ((((((((((array_size <= 2 && 1 <= array_size) && i <= 1) && array_size <= 2147483647) && k <= 2) && array_size <= 2147483647) && 0 <= i) && j == 1) && array_size <= 2) && 1 <= k) && 1 <= array_size) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((((k <= 2 && array_size <= 2147483647) && 1 <= k) && 1 <= array_size) || (((array_size <= 2147483647 && 3 <= array_size) && 1 <= k) && 1 <= array_size)) || ((array_size <= 2147483647 && k == 0) && 1 <= array_size) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: (((((((((1 <= array_size && array_size <= 2147483647) && array_size <= 1) && array_size <= 2147483647) && i <= 0) && array_size <= 1) && 1 <= k) && 1 <= array_size) || (((((((((array_size <= 2 && 1 <= array_size) && i <= 1) && array_size <= 2147483647) && k <= 2) && array_size <= 2147483647) && array_size <= 2) && 1 <= k) && i <= 2147483646) && 1 <= array_size)) || ((((((((1 <= array_size && array_size <= 2147483647) && 2 <= k) && array_size <= 2147483647) && 3 <= array_size) && 3 <= array_size) && 1 <= k) && i <= 2147483646) && 1 <= array_size)) || ((((((1 <= array_size && array_size <= 2147483647) && array_size <= 2147483647) && i <= 0) && j == 1) && 1 <= k) && 1 <= array_size) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 10:57:08,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28a17da-0203-412c-9ad2-72b67db948da/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE