./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/verifythis/lcp.c --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_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/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_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/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_cf2486b9-c64b-4903-8664-4f8cbc012e2b/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 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a --- 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 11:34:00,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:34:00,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:34:00,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:34:00,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:34:00,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:34:00,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:34:00,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:34:00,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:34:00,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:34:00,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:34:00,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:34:00,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:34:00,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:34:00,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:34:00,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:34:00,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:34:00,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:34:00,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:34:00,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:34:00,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:34:00,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:34:00,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:34:00,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:34:00,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:34:00,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:34:00,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:34:00,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:34:00,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:34:00,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:34:00,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:34:00,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:34:00,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:34:00,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:34:00,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:34:00,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:34:00,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:34:00,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:34:00,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:34:00,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:34:00,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:34:00,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:34:00,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:34:00,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:34:00,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:34:00,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:34:00,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:34:00,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:34:00,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:34:01,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:34:01,000 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:34:01,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:34:01,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:34:01,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:34:01,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:34:01,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:34:01,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:34:01,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:34:01,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:34:01,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:34:01,003 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:34:01,003 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:34:01,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:34:01,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:34:01,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:34:01,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:34:01,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:34:01,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:34:01,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:34:01,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:34:01,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:34:01,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:34:01,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:34:01,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:34:01,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:34:01,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:34:01,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:34:01,007 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_cf2486b9-c64b-4903-8664-4f8cbc012e2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a [2022-11-20 11:34:01,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:34:01,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:34:01,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:34:01,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:34:01,334 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:34:01,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/verifythis/lcp.c [2022-11-20 11:34:04,314 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:34:04,544 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:34:04,544 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/sv-benchmarks/c/verifythis/lcp.c [2022-11-20 11:34:04,552 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/data/ee34bd41a/66805aeee86949e580cfcdcdbdb36272/FLAG0a2630502 [2022-11-20 11:34:04,581 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/data/ee34bd41a/66805aeee86949e580cfcdcdbdb36272 [2022-11-20 11:34:04,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:34:04,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:34:04,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:34:04,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:34:04,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:34:04,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48aa5722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04, skipping insertion in model container [2022-11-20 11:34:04,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:34:04,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:34:04,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-11-20 11:34:04,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:34:04,790 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:34:04,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-11-20 11:34:04,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:34:04,825 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:34:04,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04 WrapperNode [2022-11-20 11:34:04,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:34:04,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:34:04,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:34:04,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:34:04,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,863 INFO L138 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-11-20 11:34:04,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:34:04,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:34:04,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:34:04,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:34:04,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:34:04,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:34:04,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:34:04,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:34:04,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (1/1) ... [2022-11-20 11:34:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:34:04,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:04,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:34:04,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:34:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:34:04,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:34:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:34:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:34:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:34:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:34:04,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:34:04,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:34:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 11:34:04,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 11:34:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:34:05,069 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:34:05,072 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:34:05,450 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:34:05,457 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:34:05,458 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:34:05,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:05 BoogieIcfgContainer [2022-11-20 11:34:05,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:34:05,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:34:05,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:34:05,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:34:05,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:34:04" (1/3) ... [2022-11-20 11:34:05,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcd1a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:34:05, skipping insertion in model container [2022-11-20 11:34:05,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:04" (2/3) ... [2022-11-20 11:34:05,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcd1a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:34:05, skipping insertion in model container [2022-11-20 11:34:05,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:05" (3/3) ... [2022-11-20 11:34:05,470 INFO L112 eAbstractionObserver]: Analyzing ICFG lcp.c [2022-11-20 11:34:05,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:34:05,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-20 11:34:05,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:34:05,552 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;@5ee092d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:34:05,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-20 11:34:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 68 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 11:34:05,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:34:05,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:05,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:05,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:05,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:05,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2072078998, now seen corresponding path program 1 times [2022-11-20 11:34:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:05,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707289404] [2022-11-20 11:34:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:05,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:05,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:05,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707289404] [2022-11-20 11:34:05,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707289404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:05,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:05,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:34:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041110801] [2022-11-20 11:34:05,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:05,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:34:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:05,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:34:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:34:05,915 INFO L87 Difference]: Start difference. First operand has 76 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 68 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:05,950 INFO L93 Difference]: Finished difference Result 149 states and 173 transitions. [2022-11-20 11:34:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:34:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-11-20 11:34:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:05,959 INFO L225 Difference]: With dead ends: 149 [2022-11-20 11:34:05,960 INFO L226 Difference]: Without dead ends: 70 [2022-11-20 11:34:05,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:34:05,967 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:05,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:34:05,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-20 11:34:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-20 11:34:06,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 63 states have internal predecessors, (67), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2022-11-20 11:34:06,013 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 16 [2022-11-20 11:34:06,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:06,014 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2022-11-20 11:34:06,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:06,015 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2022-11-20 11:34:06,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:34:06,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:06,017 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:06,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:34:06,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:06,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:06,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1812066518, now seen corresponding path program 1 times [2022-11-20 11:34:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:06,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259549472] [2022-11-20 11:34:06,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:06,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:06,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:06,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259549472] [2022-11-20 11:34:06,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259549472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:06,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:06,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:06,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763960277] [2022-11-20 11:34:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:06,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:34:06,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:06,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:34:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:34:06,332 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:06,506 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2022-11-20 11:34:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:34:06,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-11-20 11:34:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:06,512 INFO L225 Difference]: With dead ends: 125 [2022-11-20 11:34:06,514 INFO L226 Difference]: Without dead ends: 123 [2022-11-20 11:34:06,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 11:34:06,516 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 156 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:06,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 135 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-20 11:34:06,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 78. [2022-11-20 11:34:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.6) internal successors, (80), 71 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-11-20 11:34:06,543 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 16 [2022-11-20 11:34:06,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:06,544 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-11-20 11:34:06,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-11-20 11:34:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:34:06,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:06,547 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:06,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:34:06,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:06,548 INFO L85 PathProgramCache]: Analyzing trace with hash -339487164, now seen corresponding path program 1 times [2022-11-20 11:34:06,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:06,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058867318] [2022-11-20 11:34:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:06,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:06,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058867318] [2022-11-20 11:34:06,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058867318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:06,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:06,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:06,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745226641] [2022-11-20 11:34:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:06,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:34:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:06,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:34:06,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:34:06,736 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:06,844 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2022-11-20 11:34:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:34:06,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-20 11:34:06,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:06,847 INFO L225 Difference]: With dead ends: 123 [2022-11-20 11:34:06,851 INFO L226 Difference]: Without dead ends: 121 [2022-11-20 11:34:06,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 11:34:06,852 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 132 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:06,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 156 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-20 11:34:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 79. [2022-11-20 11:34:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 72 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2022-11-20 11:34:06,879 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 17 [2022-11-20 11:34:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:06,879 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2022-11-20 11:34:06,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:06,880 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2022-11-20 11:34:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 11:34:06,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:06,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:06,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:34:06,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash 170351462, now seen corresponding path program 1 times [2022-11-20 11:34:06,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:06,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872234877] [2022-11-20 11:34:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:06,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:07,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872234877] [2022-11-20 11:34:07,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872234877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:07,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245998730] [2022-11-20 11:34:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:07,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:34:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:07,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:34:07,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:34:07,060 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:07,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:07,131 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2022-11-20 11:34:07,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:34:07,132 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-20 11:34:07,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:07,133 INFO L225 Difference]: With dead ends: 121 [2022-11-20 11:34:07,133 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 11:34:07,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 11:34:07,135 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 153 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:07,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 128 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:07,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 11:34:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 80. [2022-11-20 11:34:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.5384615384615385) internal successors, (80), 73 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2022-11-20 11:34:07,149 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 19 [2022-11-20 11:34:07,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:07,149 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2022-11-20 11:34:07,149 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2022-11-20 11:34:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 11:34:07,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:07,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:07,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:34:07,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:07,151 INFO L85 PathProgramCache]: Analyzing trace with hash 985928079, now seen corresponding path program 1 times [2022-11-20 11:34:07,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:07,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917587834] [2022-11-20 11:34:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:07,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:07,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:07,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917587834] [2022-11-20 11:34:07,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917587834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:07,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:07,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:07,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081339253] [2022-11-20 11:34:07,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:07,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:34:07,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:07,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:34:07,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:34:07,291 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:07,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:07,375 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2022-11-20 11:34:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:34:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-11-20 11:34:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:07,379 INFO L225 Difference]: With dead ends: 119 [2022-11-20 11:34:07,379 INFO L226 Difference]: Without dead ends: 117 [2022-11-20 11:34:07,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 11:34:07,381 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 148 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:07,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 130 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-20 11:34:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 81. [2022-11-20 11:34:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 53 states have (on average 1.509433962264151) internal successors, (80), 74 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2022-11-20 11:34:07,404 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 20 [2022-11-20 11:34:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:07,405 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2022-11-20 11:34:07,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2022-11-20 11:34:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 11:34:07,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:07,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:07,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:34:07,407 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:07,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:07,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1705149854, now seen corresponding path program 1 times [2022-11-20 11:34:07,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:07,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112444442] [2022-11-20 11:34:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:07,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:07,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112444442] [2022-11-20 11:34:07,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112444442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:07,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:07,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:07,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736695372] [2022-11-20 11:34:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:07,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:34:07,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:07,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:34:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:34:07,478 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:07,506 INFO L93 Difference]: Finished difference Result 145 states and 156 transitions. [2022-11-20 11:34:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:34:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-20 11:34:07,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:07,508 INFO L225 Difference]: With dead ends: 145 [2022-11-20 11:34:07,509 INFO L226 Difference]: Without dead ends: 82 [2022-11-20 11:34:07,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 11:34:07,515 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:07,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:34:07,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-20 11:34:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-20 11:34:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.5) internal successors, (81), 75 states have internal predecessors, (81), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:07,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2022-11-20 11:34:07,529 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 22 [2022-11-20 11:34:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:07,530 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2022-11-20 11:34:07,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2022-11-20 11:34:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 11:34:07,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:07,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:07,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:34:07,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:07,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:07,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1225977764, now seen corresponding path program 1 times [2022-11-20 11:34:07,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:07,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606704693] [2022-11-20 11:34:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:07,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:07,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:07,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606704693] [2022-11-20 11:34:07,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606704693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:07,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:07,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:07,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834453251] [2022-11-20 11:34:07,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:07,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:34:07,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:07,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:34:07,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:34:07,629 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:07,694 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2022-11-20 11:34:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:34:07,695 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-20 11:34:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:07,696 INFO L225 Difference]: With dead ends: 119 [2022-11-20 11:34:07,696 INFO L226 Difference]: Without dead ends: 117 [2022-11-20 11:34:07,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 11:34:07,698 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 37 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:07,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 239 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:34:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-20 11:34:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 85. [2022-11-20 11:34:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 78 states have internal predecessors, (85), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-11-20 11:34:07,729 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 26 [2022-11-20 11:34:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:07,729 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-11-20 11:34:07,729 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-11-20 11:34:07,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 11:34:07,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:07,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:07,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:34:07,731 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:07,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:07,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1651266854, now seen corresponding path program 1 times [2022-11-20 11:34:07,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:07,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69543348] [2022-11-20 11:34:07,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:07,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:34:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:08,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:08,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69543348] [2022-11-20 11:34:08,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69543348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:08,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:08,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:34:08,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287174874] [2022-11-20 11:34:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:08,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:34:08,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:08,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:34:08,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:34:08,014 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:34:08,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:08,223 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2022-11-20 11:34:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:34:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2022-11-20 11:34:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:08,225 INFO L225 Difference]: With dead ends: 121 [2022-11-20 11:34:08,225 INFO L226 Difference]: Without dead ends: 85 [2022-11-20 11:34:08,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:34:08,226 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 79 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:08,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 354 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:34:08,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-20 11:34:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-20 11:34:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.456140350877193) internal successors, (83), 78 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2022-11-20 11:34:08,232 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 29 [2022-11-20 11:34:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:08,233 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2022-11-20 11:34:08,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:34:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2022-11-20 11:34:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 11:34:08,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:08,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:08,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:34:08,235 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1343589576, now seen corresponding path program 1 times [2022-11-20 11:34:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:08,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226801553] [2022-11-20 11:34:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:08,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:08,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:08,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226801553] [2022-11-20 11:34:08,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226801553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:08,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:08,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:34:08,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285603393] [2022-11-20 11:34:08,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:08,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:34:08,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:08,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:34:08,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:34:08,286 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:08,311 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2022-11-20 11:34:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:34:08,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-20 11:34:08,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:08,312 INFO L225 Difference]: With dead ends: 161 [2022-11-20 11:34:08,313 INFO L226 Difference]: Without dead ends: 88 [2022-11-20 11:34:08,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 11:34:08,314 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 3 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:08,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 207 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:34:08,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-20 11:34:08,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2022-11-20 11:34:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.423728813559322) internal successors, (84), 80 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2022-11-20 11:34:08,320 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 28 [2022-11-20 11:34:08,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:08,321 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2022-11-20 11:34:08,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:08,321 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2022-11-20 11:34:08,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:34:08,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:08,322 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:08,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:34:08,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash -329228460, now seen corresponding path program 1 times [2022-11-20 11:34:08,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:08,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293557232] [2022-11-20 11:34:08,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:08,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:08,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:08,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293557232] [2022-11-20 11:34:08,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293557232] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:08,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826274854] [2022-11-20 11:34:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:08,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:08,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:08,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:08,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:34:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:08,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:34:08,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:08,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:08,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826274854] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:08,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:08,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-11-20 11:34:08,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003522988] [2022-11-20 11:34:08,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:08,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:34:08,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:08,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:34:08,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:34:08,869 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:09,180 INFO L93 Difference]: Finished difference Result 119 states and 126 transitions. [2022-11-20 11:34:09,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:34:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-11-20 11:34:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:09,182 INFO L225 Difference]: With dead ends: 119 [2022-11-20 11:34:09,182 INFO L226 Difference]: Without dead ends: 117 [2022-11-20 11:34:09,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:34:09,183 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 336 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:09,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 419 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:34:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-20 11:34:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 85. [2022-11-20 11:34:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 78 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2022-11-20 11:34:09,190 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 30 [2022-11-20 11:34:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:09,191 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2022-11-20 11:34:09,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2022-11-20 11:34:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 11:34:09,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:09,192 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, 1, 1, 1, 1] [2022-11-20 11:34:09,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 11:34:09,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:34:09,397 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:09,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1616147622, now seen corresponding path program 1 times [2022-11-20 11:34:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:09,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588511956] [2022-11-20 11:34:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:09,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:09,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:09,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588511956] [2022-11-20 11:34:09,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588511956] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:09,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040855849] [2022-11-20 11:34:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:09,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:09,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:09,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:09,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:34:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:09,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:34:09,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:09,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:09,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040855849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:09,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:34:09,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-20 11:34:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242279265] [2022-11-20 11:34:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:09,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:34:09,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:09,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:34:09,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:34:09,766 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:09,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:09,882 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2022-11-20 11:34:09,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:34:09,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-11-20 11:34:09,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:09,884 INFO L225 Difference]: With dead ends: 85 [2022-11-20 11:34:09,884 INFO L226 Difference]: Without dead ends: 82 [2022-11-20 11:34:09,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:34:09,885 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 141 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:09,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 135 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:09,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-20 11:34:09,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2022-11-20 11:34:09,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 74 states have internal predecessors, (78), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2022-11-20 11:34:09,892 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 31 [2022-11-20 11:34:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:09,892 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2022-11-20 11:34:09,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:09,893 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2022-11-20 11:34:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 11:34:09,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:09,894 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, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:09,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 11:34:10,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:10,099 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:10,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:10,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1660297980, now seen corresponding path program 1 times [2022-11-20 11:34:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:10,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42329461] [2022-11-20 11:34:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:10,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:10,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42329461] [2022-11-20 11:34:10,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42329461] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:10,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206211520] [2022-11-20 11:34:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:10,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:10,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:10,294 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:10,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:34:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:10,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:34:10,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:10,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:10,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206211520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:10,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:10,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-11-20 11:34:10,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515890237] [2022-11-20 11:34:10,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:10,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:34:10,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:10,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:34:10,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:34:10,602 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:10,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:10,961 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2022-11-20 11:34:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:34:10,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-11-20 11:34:10,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:10,971 INFO L225 Difference]: With dead ends: 113 [2022-11-20 11:34:10,971 INFO L226 Difference]: Without dead ends: 111 [2022-11-20 11:34:10,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:34:10,972 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 245 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:10,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 487 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-20 11:34:10,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 79. [2022-11-20 11:34:10,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 72 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2022-11-20 11:34:10,981 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 33 [2022-11-20 11:34:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:10,981 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2022-11-20 11:34:10,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2022-11-20 11:34:10,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 11:34:10,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:10,983 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:10,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:11,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 11:34:11,190 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:11,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:11,193 INFO L85 PathProgramCache]: Analyzing trace with hash -70370119, now seen corresponding path program 1 times [2022-11-20 11:34:11,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:11,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9131462] [2022-11-20 11:34:11,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9131462] [2022-11-20 11:34:11,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9131462] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595095336] [2022-11-20 11:34:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:11,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:11,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:11,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:11,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:34:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:34:11,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:11,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:11,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595095336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:11,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:34:11,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-20 11:34:11,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552703848] [2022-11-20 11:34:11,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:11,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:34:11,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:11,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:34:11,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:34:11,502 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:11,608 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-11-20 11:34:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:34:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-20 11:34:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:11,610 INFO L225 Difference]: With dead ends: 80 [2022-11-20 11:34:11,610 INFO L226 Difference]: Without dead ends: 78 [2022-11-20 11:34:11,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:34:11,612 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:11,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 150 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-20 11:34:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2022-11-20 11:34:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 70 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-11-20 11:34:11,621 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 34 [2022-11-20 11:34:11,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:11,621 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-11-20 11:34:11,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:11,622 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-11-20 11:34:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 11:34:11,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:11,624 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:11,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:11,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 11:34:11,830 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:11,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1909503138, now seen corresponding path program 1 times [2022-11-20 11:34:11,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:11,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376911983] [2022-11-20 11:34:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:11,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:11,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:11,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376911983] [2022-11-20 11:34:11,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376911983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:11,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124326562] [2022-11-20 11:34:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:11,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:11,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:11,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:11,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:34:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:11,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:34:11,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:12,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:12,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124326562] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:12,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:12,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 11:34:12,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596135987] [2022-11-20 11:34:12,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:12,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:34:12,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:12,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:34:12,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:34:12,136 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:12,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:12,306 INFO L93 Difference]: Finished difference Result 223 states and 245 transitions. [2022-11-20 11:34:12,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:34:12,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-11-20 11:34:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:12,308 INFO L225 Difference]: With dead ends: 223 [2022-11-20 11:34:12,309 INFO L226 Difference]: Without dead ends: 222 [2022-11-20 11:34:12,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:34:12,311 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 144 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:12,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 414 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:12,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-20 11:34:12,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 119. [2022-11-20 11:34:12,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 100 states have (on average 1.25) internal successors, (125), 112 states have internal predecessors, (125), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2022-11-20 11:34:12,322 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 42 [2022-11-20 11:34:12,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:12,323 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2022-11-20 11:34:12,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2022-11-20 11:34:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 11:34:12,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:12,325 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:12,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:12,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:34:12,530 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:12,531 INFO L85 PathProgramCache]: Analyzing trace with hash -774476048, now seen corresponding path program 1 times [2022-11-20 11:34:12,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:12,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990031041] [2022-11-20 11:34:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:12,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:12,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:12,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:34:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:12,957 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:12,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:12,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990031041] [2022-11-20 11:34:12,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990031041] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:12,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087462639] [2022-11-20 11:34:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:12,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:12,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:12,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:12,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:34:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:13,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 11:34:13,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:13,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:13,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087462639] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:13,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:13,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 32 [2022-11-20 11:34:13,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214212582] [2022-11-20 11:34:13,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:13,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-20 11:34:13,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:13,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-20 11:34:13,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2022-11-20 11:34:13,764 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand has 33 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-20 11:34:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:15,289 INFO L93 Difference]: Finished difference Result 179 states and 203 transitions. [2022-11-20 11:34:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:34:15,290 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) Word has length 43 [2022-11-20 11:34:15,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:15,291 INFO L225 Difference]: With dead ends: 179 [2022-11-20 11:34:15,291 INFO L226 Difference]: Without dead ends: 176 [2022-11-20 11:34:15,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=626, Invalid=2566, Unknown=0, NotChecked=0, Total=3192 [2022-11-20 11:34:15,293 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 880 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:15,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 312 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:34:15,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-20 11:34:15,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 116. [2022-11-20 11:34:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 100 states have (on average 1.22) internal successors, (122), 109 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2022-11-20 11:34:15,307 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 43 [2022-11-20 11:34:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:15,307 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2022-11-20 11:34:15,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-20 11:34:15,308 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2022-11-20 11:34:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 11:34:15,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:15,309 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:15,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:15,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 11:34:15,512 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1761046379, now seen corresponding path program 1 times [2022-11-20 11:34:15,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:15,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192526987] [2022-11-20 11:34:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:15,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:16,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:34:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:16,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:16,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:16,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192526987] [2022-11-20 11:34:16,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192526987] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:16,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760453852] [2022-11-20 11:34:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:16,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:16,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:16,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:16,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:34:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:16,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:34:16,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:16,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:16,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760453852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:16,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:16,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 15 [2022-11-20 11:34:16,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493315709] [2022-11-20 11:34:16,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:16,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:34:16,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:16,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:34:16,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:34:16,311 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 11:34:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:16,746 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2022-11-20 11:34:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:34:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 44 [2022-11-20 11:34:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:16,748 INFO L225 Difference]: With dead ends: 146 [2022-11-20 11:34:16,748 INFO L226 Difference]: Without dead ends: 145 [2022-11-20 11:34:16,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:34:16,749 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 199 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:16,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 277 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:34:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-20 11:34:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 115. [2022-11-20 11:34:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 100 states have (on average 1.21) internal successors, (121), 108 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2022-11-20 11:34:16,761 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 44 [2022-11-20 11:34:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:16,762 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2022-11-20 11:34:16,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 11:34:16,762 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2022-11-20 11:34:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:34:16,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:16,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:16,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:16,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:16,968 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1242137006, now seen corresponding path program 1 times [2022-11-20 11:34:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:16,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590577524] [2022-11-20 11:34:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:16,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:34:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:17,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:17,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590577524] [2022-11-20 11:34:17,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590577524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:17,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629325467] [2022-11-20 11:34:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:17,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:17,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:17,377 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:17,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:34:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:17,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 11:34:17,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:17,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:17,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629325467] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:17,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:17,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-11-20 11:34:17,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542260242] [2022-11-20 11:34:17,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:17,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:34:17,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:17,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:34:17,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:34:17,996 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand has 25 states, 24 states have (on average 2.7916666666666665) internal successors, (67), 25 states have internal predecessors, (67), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:34:19,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:19,063 INFO L93 Difference]: Finished difference Result 170 states and 188 transitions. [2022-11-20 11:34:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:34:19,064 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.7916666666666665) internal successors, (67), 25 states have internal predecessors, (67), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-20 11:34:19,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:19,065 INFO L225 Difference]: With dead ends: 170 [2022-11-20 11:34:19,065 INFO L226 Difference]: Without dead ends: 169 [2022-11-20 11:34:19,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=354, Invalid=1368, Unknown=0, NotChecked=0, Total=1722 [2022-11-20 11:34:19,067 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 505 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:19,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 574 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:34:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-20 11:34:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 122. [2022-11-20 11:34:19,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 106 states have (on average 1.1981132075471699) internal successors, (127), 114 states have internal predecessors, (127), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 11:34:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2022-11-20 11:34:19,084 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 45 [2022-11-20 11:34:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:19,085 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2022-11-20 11:34:19,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.7916666666666665) internal successors, (67), 25 states have internal predecessors, (67), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:34:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2022-11-20 11:34:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 11:34:19,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:19,086 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:19,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 11:34:19,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 11:34:19,292 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash 148458573, now seen corresponding path program 1 times [2022-11-20 11:34:19,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:19,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071740088] [2022-11-20 11:34:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:19,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:19,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:34:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 11:34:19,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:19,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071740088] [2022-11-20 11:34:19,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071740088] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:19,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151136275] [2022-11-20 11:34:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:19,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:19,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:19,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:19,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:34:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:19,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:34:19,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:19,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:19,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151136275] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:19,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:19,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-11-20 11:34:19,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476144155] [2022-11-20 11:34:19,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:19,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:34:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:34:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:34:19,762 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 11:34:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:19,874 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2022-11-20 11:34:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:34:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2022-11-20 11:34:19,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:19,875 INFO L225 Difference]: With dead ends: 122 [2022-11-20 11:34:19,875 INFO L226 Difference]: Without dead ends: 121 [2022-11-20 11:34:19,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:34:19,876 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 80 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:19,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 195 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:19,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-20 11:34:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-20 11:34:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 113 states have internal predecessors, (126), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 11:34:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2022-11-20 11:34:19,893 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 46 [2022-11-20 11:34:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:19,893 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2022-11-20 11:34:19,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 11:34:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2022-11-20 11:34:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 11:34:19,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:19,895 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:19,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-20 11:34:20,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 11:34:20,100 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:20,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1955233590, now seen corresponding path program 1 times [2022-11-20 11:34:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:20,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178586305] [2022-11-20 11:34:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:20,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:20,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:20,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:34:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:20,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178586305] [2022-11-20 11:34:20,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178586305] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610734735] [2022-11-20 11:34:20,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:20,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:20,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:20,549 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:20,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 11:34:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:20,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 11:34:20,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:20,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 11:34:21,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610734735] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:21,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:21,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 31 [2022-11-20 11:34:21,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485346727] [2022-11-20 11:34:21,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:21,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 11:34:21,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:21,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 11:34:21,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:34:21,312 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand has 32 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 32 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-20 11:34:22,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:22,424 INFO L93 Difference]: Finished difference Result 144 states and 164 transitions. [2022-11-20 11:34:22,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:34:22,424 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 32 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2022-11-20 11:34:22,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:22,425 INFO L225 Difference]: With dead ends: 144 [2022-11-20 11:34:22,425 INFO L226 Difference]: Without dead ends: 141 [2022-11-20 11:34:22,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=447, Invalid=1905, Unknown=0, NotChecked=0, Total=2352 [2022-11-20 11:34:22,427 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 347 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:22,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 316 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:34:22,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-20 11:34:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 111. [2022-11-20 11:34:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.17) internal successors, (117), 104 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2022-11-20 11:34:22,441 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 47 [2022-11-20 11:34:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:22,442 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2022-11-20 11:34:22,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 32 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-20 11:34:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2022-11-20 11:34:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 11:34:22,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:22,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:22,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:22,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:22,648 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:22,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1955476521, now seen corresponding path program 1 times [2022-11-20 11:34:22,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:22,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007928773] [2022-11-20 11:34:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:22,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:34:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:34:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:23,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:23,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007928773] [2022-11-20 11:34:23,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007928773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:23,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923165572] [2022-11-20 11:34:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:23,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:23,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:23,030 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 11:34:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:23,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:34:23,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:23,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:23,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923165572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:23,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:34:23,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 18 [2022-11-20 11:34:23,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199420730] [2022-11-20 11:34:23,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:23,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:34:23,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:23,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:34:23,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:34:23,350 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 11:34:23,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:23,511 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2022-11-20 11:34:23,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:34:23,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2022-11-20 11:34:23,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:23,513 INFO L225 Difference]: With dead ends: 111 [2022-11-20 11:34:23,513 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 11:34:23,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:34:23,514 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 97 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:23,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 105 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 11:34:23,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-20 11:34:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 100 states have (on average 1.15) internal successors, (115), 102 states have internal predecessors, (115), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2022-11-20 11:34:23,524 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 54 [2022-11-20 11:34:23,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:23,524 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2022-11-20 11:34:23,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 11:34:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2022-11-20 11:34:23,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 11:34:23,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:23,525 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:23,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:23,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:23,726 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:23,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:23,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1335262495, now seen corresponding path program 1 times [2022-11-20 11:34:23,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:23,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626738306] [2022-11-20 11:34:23,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:23,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 11:34:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:34:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:24,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:24,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626738306] [2022-11-20 11:34:24,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626738306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:24,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322845735] [2022-11-20 11:34:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:24,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:24,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:24,060 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:24,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 11:34:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:24,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:34:24,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:24,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:34:24,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 11:34:24,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322845735] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:24,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:24,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-11-20 11:34:24,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585923445] [2022-11-20 11:34:24,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:24,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:34:24,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:24,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:34:24,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:34:24,509 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 19 states, 19 states have (on average 4.842105263157895) internal successors, (92), 19 states have internal predecessors, (92), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-20 11:34:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:25,036 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2022-11-20 11:34:25,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:34:25,036 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.842105263157895) internal successors, (92), 19 states have internal predecessors, (92), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2022-11-20 11:34:25,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:25,037 INFO L225 Difference]: With dead ends: 133 [2022-11-20 11:34:25,037 INFO L226 Difference]: Without dead ends: 107 [2022-11-20 11:34:25,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 111 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:34:25,038 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 253 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:25,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 463 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:34:25,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-20 11:34:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-20 11:34:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 98 states have (on average 1.1020408163265305) internal successors, (108), 100 states have internal predecessors, (108), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 11:34:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2022-11-20 11:34:25,051 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 57 [2022-11-20 11:34:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:25,051 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2022-11-20 11:34:25,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.842105263157895) internal successors, (92), 19 states have internal predecessors, (92), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-20 11:34:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2022-11-20 11:34:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 11:34:25,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:25,052 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:25,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:25,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:25,258 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:25,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:25,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1649455675, now seen corresponding path program 1 times [2022-11-20 11:34:25,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:25,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623728928] [2022-11-20 11:34:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:25,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:34:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 11:34:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:25,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:25,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623728928] [2022-11-20 11:34:25,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623728928] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:25,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017724922] [2022-11-20 11:34:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:25,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:25,756 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:25,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 11:34:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:25,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:34:25,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:34:26,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:26,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017724922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:26,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:34:26,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2022-11-20 11:34:26,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580573682] [2022-11-20 11:34:26,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:26,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:34:26,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:26,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:34:26,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:34:26,077 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 11:34:26,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:26,242 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2022-11-20 11:34:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:34:26,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2022-11-20 11:34:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:26,243 INFO L225 Difference]: With dead ends: 107 [2022-11-20 11:34:26,244 INFO L226 Difference]: Without dead ends: 81 [2022-11-20 11:34:26,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:34:26,245 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 78 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:26,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 121 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:34:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-20 11:34:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-11-20 11:34:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 1.0129870129870129) internal successors, (78), 77 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:26,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2022-11-20 11:34:26,251 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 59 [2022-11-20 11:34:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:26,251 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2022-11-20 11:34:26,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 11:34:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2022-11-20 11:34:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 11:34:26,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:26,253 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:26,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-20 11:34:26,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-20 11:34:26,458 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:26,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:26,458 INFO L85 PathProgramCache]: Analyzing trace with hash -72257760, now seen corresponding path program 2 times [2022-11-20 11:34:26,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:26,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057984999] [2022-11-20 11:34:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:26,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:26,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:26,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057984999] [2022-11-20 11:34:26,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057984999] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:26,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373396525] [2022-11-20 11:34:26,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:34:26,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:26,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:26,669 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:26,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 11:34:26,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:34:26,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:34:26,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:34:26,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:26,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:27,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373396525] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:27,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:27,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-20 11:34:27,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41305896] [2022-11-20 11:34:27,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:27,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:34:27,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:34:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:34:27,091 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 24 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:27,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:27,367 INFO L93 Difference]: Finished difference Result 167 states and 173 transitions. [2022-11-20 11:34:27,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:34:27,368 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 24 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2022-11-20 11:34:27,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:27,369 INFO L225 Difference]: With dead ends: 167 [2022-11-20 11:34:27,369 INFO L226 Difference]: Without dead ends: 166 [2022-11-20 11:34:27,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 11:34:27,370 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 49 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:27,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 140 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:34:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-20 11:34:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2022-11-20 11:34:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 161 states have (on average 1.0062111801242235) internal successors, (162), 161 states have internal predecessors, (162), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:34:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 166 transitions. [2022-11-20 11:34:27,381 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 166 transitions. Word has length 84 [2022-11-20 11:34:27,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:27,381 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 166 transitions. [2022-11-20 11:34:27,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 24 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:34:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 166 transitions. [2022-11-20 11:34:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-20 11:34:27,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:27,386 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:27,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:27,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:27,592 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-20 11:34:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1240740964, now seen corresponding path program 3 times [2022-11-20 11:34:27,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:34:27,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540836213] [2022-11-20 11:34:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:27,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:34:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:34:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:34:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 0 proven. 760 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:34:28,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:34:28,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540836213] [2022-11-20 11:34:28,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540836213] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:34:28,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967613312] [2022-11-20 11:34:28,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:34:28,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:34:28,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:34:28,344 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:34:28,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 11:34:28,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 11:34:28,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:34:28,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 11:34:28,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:29,182 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 3 proven. 110 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-11-20 11:34:29,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:34:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 3 proven. 110 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-11-20 11:34:29,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967613312] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:34:29,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:34:29,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 9, 9] total 34 [2022-11-20 11:34:29,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962738201] [2022-11-20 11:34:29,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:34:29,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 11:34:29,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:34:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 11:34:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 11:34:29,544 INFO L87 Difference]: Start difference. First operand 165 states and 166 transitions. Second operand has 35 states, 34 states have (on average 6.235294117647059) internal successors, (212), 33 states have internal predecessors, (212), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:34:30,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:30,480 INFO L93 Difference]: Finished difference Result 183 states and 185 transitions. [2022-11-20 11:34:30,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 11:34:30,480 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.235294117647059) internal successors, (212), 33 states have internal predecessors, (212), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2022-11-20 11:34:30,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:30,481 INFO L225 Difference]: With dead ends: 183 [2022-11-20 11:34:30,481 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:34:30,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=921, Invalid=2861, Unknown=0, NotChecked=0, Total=3782 [2022-11-20 11:34:30,484 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 551 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:34:30,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 116 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:34:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:34:30,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:34:30,485 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 11:34:30,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:34:30,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2022-11-20 11:34:30,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:30,486 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:34:30,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.235294117647059) internal successors, (212), 33 states have internal predecessors, (212), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:34:30,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:34:30,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:34:30,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-11-20 11:34:30,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-11-20 11:34:30,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-11-20 11:34:30,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-11-20 11:34:30,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-11-20 11:34:30,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-11-20 11:34:30,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-11-20 11:34:30,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-11-20 11:34:30,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-11-20 11:34:30,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-11-20 11:34:30,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-11-20 11:34:30,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-11-20 11:34:30,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-11-20 11:34:30,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-11-20 11:34:30,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-11-20 11:34:30,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-11-20 11:34:30,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-11-20 11:34:30,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-11-20 11:34:30,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-11-20 11:34:30,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-11-20 11:34:30,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-11-20 11:34:30,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-11-20 11:34:30,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:30,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-20 11:34:30,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:34:55,963 WARN L233 SmtUtils]: Spent 25.26s on a formula simplification. DAG size of input: 147 DAG size of output: 144 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 11:35:20,934 WARN L233 SmtUtils]: Spent 24.97s on a formula simplification. DAG size of input: 122 DAG size of output: 119 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 11:35:49,297 WARN L233 SmtUtils]: Spent 28.33s on a formula simplification. DAG size of input: 151 DAG size of output: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 11:35:50,708 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,709 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (or (and (= |ULTIMATE.start_check_~l#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_check_~x#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| 0) (= |ULTIMATE.start_lcp_#res#1| 0)) (and (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|) 2147483647) (<= 1 |ULTIMATE.start_lcp_#res#1|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|) 2147483647) (<= 0 |ULTIMATE.start_check_~y#1|) (<= 1 |ULTIMATE.start_check_~l#1|) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|) 2147483647) (<= 1 |ULTIMATE.start_lcp_~l~0#1|) (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|) 2147483647) (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|) 2147483647) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_check_~i~0#1| 2147483648)) (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) (<= 0 |ULTIMATE.start_check_~x#1|) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|) (<= |ULTIMATE.start_main_~n~0#1| 1073741823) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|))) [2022-11-20 11:35:50,709 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-20 11:35:50,709 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-20 11:35:50,709 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-11-20 11:35:50,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:35:50,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:35:50,710 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,711 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,711 INFO L899 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,711 INFO L895 garLoopResultBuilder]: At program point L28-3(line 28) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|) 2147483647) (<= 1 |ULTIMATE.start_lcp_#res#1|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|) 2147483647) (<= 0 |ULTIMATE.start_check_~y#1|) (<= 1 |ULTIMATE.start_check_~l#1|) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|) 2147483647) (<= 1 |ULTIMATE.start_lcp_~l~0#1|) (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|) 2147483647) (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|) 2147483647) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_check_~i~0#1|) (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) (<= 0 |ULTIMATE.start_check_~x#1|) (<= (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~x#1|) 2147483646) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|) (<= |ULTIMATE.start_main_~n~0#1| 1073741823) (<= (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~y#1|) 2147483646) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) [2022-11-20 11:35:50,711 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,711 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-20 11:35:50,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,712 INFO L895 garLoopResultBuilder]: At program point L21(lines 16 22) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| 0) (= |ULTIMATE.start_lcp_#res#1| 0)) (and (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|) 2147483647) (<= 1 |ULTIMATE.start_lcp_#res#1|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_#res#1|) 2147483647) (<= 1 |ULTIMATE.start_lcp_~l~0#1|) (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_#res#1|) 2147483647) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|) (<= |ULTIMATE.start_main_~n~0#1| 1073741823) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|))) [2022-11-20 11:35:50,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-20 11:35:50,713 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 2147483647) [2022-11-20 11:35:50,713 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-20 11:35:50,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,713 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,713 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,714 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,714 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,714 INFO L899 garLoopResultBuilder]: For program point L31-4(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,714 INFO L899 garLoopResultBuilder]: For program point L31-6(lines 31 32) no Hoare annotation was computed. [2022-11-20 11:35:50,714 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,714 INFO L902 garLoopResultBuilder]: At program point L48(lines 35 49) the Hoare annotation is: true [2022-11-20 11:35:50,714 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,715 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,715 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:35:50,715 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,715 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-11-20 11:35:50,715 INFO L899 garLoopResultBuilder]: For program point L32-2(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,715 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,716 INFO L899 garLoopResultBuilder]: For program point L32-3(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,716 INFO L902 garLoopResultBuilder]: At program point L32-4(line 32) the Hoare annotation is: true [2022-11-20 11:35:50,716 INFO L899 garLoopResultBuilder]: For program point L32-5(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,716 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2022-11-20 11:35:50,716 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,716 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:35:50,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-20 11:35:50,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-20 11:35:50,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,717 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,718 INFO L899 garLoopResultBuilder]: For program point L18-2(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,718 INFO L899 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,718 INFO L899 garLoopResultBuilder]: For program point L18-4(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,718 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-20 11:35:50,718 INFO L899 garLoopResultBuilder]: For program point L18-6(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,718 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~n~0#1| 1073741823) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-20 11:35:50,719 INFO L899 garLoopResultBuilder]: For program point L18-7(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,719 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L899 garLoopResultBuilder]: For program point L18-8(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L899 garLoopResultBuilder]: For program point L18-9(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L899 garLoopResultBuilder]: For program point L18-10(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L899 garLoopResultBuilder]: For program point L18-11(line 18) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L899 garLoopResultBuilder]: For program point L18-13(lines 18 20) no Hoare annotation was computed. [2022-11-20 11:35:50,720 INFO L895 garLoopResultBuilder]: At program point L18-15(lines 18 20) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~y~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_lcp_~x#1|)) (.cse3 (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse4 (<= |ULTIMATE.start_main_~n~0#1| 1073741823)) (.cse5 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|))) (or (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~y~0#1| 2147483647) .cse5 (= |ULTIMATE.start_lcp_~l~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_lcp_~l~0#1|) .cse1 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) .cse2 .cse3 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647) .cse4 .cse5))) [2022-11-20 11:35:50,721 INFO L899 garLoopResultBuilder]: For program point L18-16(lines 18 20) no Hoare annotation was computed. [2022-11-20 11:35:50,721 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-20 11:35:50,721 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-20 11:35:50,721 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-11-20 11:35:50,721 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-20 11:35:50,721 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 12 14) the Hoare annotation is: true [2022-11-20 11:35:50,721 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-11-20 11:35:50,722 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2022-11-20 11:35:50,722 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 14) no Hoare annotation was computed. [2022-11-20 11:35:50,725 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:35:50,727 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:35:50,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:35:50 BoogieIcfgContainer [2022-11-20 11:35:50,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:35:50,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:35:50,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:35:50,752 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:35:50,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:05" (3/4) ... [2022-11-20 11:35:50,755 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:35:50,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-20 11:35:50,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-20 11:35:50,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-20 11:35:50,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 11:35:50,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 11:35:50,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:35:50,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:35:50,804 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((x <= 2147483647 && 0 <= x + 2147483648) && 0 <= y + 2147483648) && y <= 2147483647) && l == 0) && \result == 0) || (((((((((((l + x <= 2147483647 && 1 <= \result) && y == y) && 0 <= x) && x + \result <= 2147483647) && 1 <= l) && y + \result <= 2147483647) && 0 <= y) && l + y <= n) && x == x) && n <= 1073741823) && n == n) [2022-11-20 11:35:50,831 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:35:50,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:35:50,835 INFO L158 Benchmark]: Toolchain (without parser) took 106246.28ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 135.9MB in the beginning and 200.7MB in the end (delta: -64.8MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,836 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 180.4MB. Free memory was 151.9MB in the beginning and 151.7MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:35:50,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.91ms. Allocated memory is still 180.4MB. Free memory was 135.3MB in the beginning and 124.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.07ms. Allocated memory is still 180.4MB. Free memory was 124.7MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,838 INFO L158 Benchmark]: Boogie Preprocessor took 30.66ms. Allocated memory is still 180.4MB. Free memory was 122.7MB in the beginning and 121.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,838 INFO L158 Benchmark]: RCFGBuilder took 565.21ms. Allocated memory is still 180.4MB. Free memory was 121.2MB in the beginning and 105.3MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,841 INFO L158 Benchmark]: TraceAbstraction took 105288.30ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 104.5MB in the beginning and 203.9MB in the end (delta: -99.4MB). Peak memory consumption was 184.4MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,841 INFO L158 Benchmark]: Witness Printer took 83.01ms. Allocated memory is still 377.5MB. Free memory was 203.9MB in the beginning and 200.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:35:50,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 180.4MB. Free memory was 151.9MB in the beginning and 151.7MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.91ms. Allocated memory is still 180.4MB. Free memory was 135.3MB in the beginning and 124.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.07ms. Allocated memory is still 180.4MB. Free memory was 124.7MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.66ms. Allocated memory is still 180.4MB. Free memory was 122.7MB in the beginning and 121.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.21ms. Allocated memory is still 180.4MB. Free memory was 121.2MB in the beginning and 105.3MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 105288.30ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 104.5MB in the beginning and 203.9MB in the end (delta: -99.4MB). Peak memory consumption was 184.4MB. Max. memory is 16.1GB. * Witness Printer took 83.01ms. Allocated memory is still 377.5MB. Free memory was 203.9MB in the beginning and 200.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: 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 3 procedures, 76 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 105.2s, OverallIterations: 24, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 80.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4725 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4706 mSDsluCounter, 5798 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4475 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4970 IncrementalHoareTripleChecker+Invalid, 5318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 1323 mSDtfsCounter, 4970 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1903 GetRequests, 1443 SyntacticMatches, 17 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2824 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=23, InterpolantAutomatonStates: 269, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 24 MinimizatonAttempts, 532 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 25 PreInvPairs, 49 NumberOfFragments, 333 HoareAnnotationTreeSize, 25 FomulaSimplifications, 541464 FormulaSimplificationTreeSizeReduction, 78.6s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1097716 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 1827 NumberOfCodeBlocks, 1701 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 2416 ConstructedInterpolants, 0 QuantifiedInterpolants, 10837 SizeOfPredicates, 135 NumberOfNonLiveVariables, 2732 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 50 InterpolantComputations, 13 PerfectInterpolantSequences, 1717/3283 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 22 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (((((x <= 2147483647 && 0 <= x + 2147483648) && 0 <= y + 2147483648) && y <= 2147483647) && l == 0) && \result == 0) || (((((((((((l + x <= 2147483647 && 1 <= \result) && y == y) && 0 <= x) && x + \result <= 2147483647) && 1 <= l) && y + \result <= 2147483647) && 0 <= y) && l + y <= n) && x == x) && n <= 1073741823) && n == n) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((y == y && x <= 2147483647) && 0 <= y) && 0 <= x) && x == x) && n <= 1073741823) && y <= 2147483647) && n == n) && l == 0) || ((((((((y == y && 1 <= l) && 0 <= y) && l + y <= n) && 0 <= x) && x == x) && l + x <= 2147483647) && n <= 1073741823) && n == n) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 11:35:50,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf2486b9-c64b-4903-8664-4f8cbc012e2b/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