./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/jain_5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/jain_5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8 --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 ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 --- 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-2329fc7 [2022-12-13 20:16:19,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:16:19,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:16:19,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:16:19,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:16:19,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:16:19,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:16:19,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:16:19,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:16:19,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:16:19,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:16:19,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:16:19,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:16:19,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:16:19,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:16:19,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:16:19,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:16:19,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:16:19,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:16:19,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:16:19,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:16:19,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:16:19,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:16:19,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:16:19,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:16:19,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:16:19,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:16:19,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:16:19,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:16:19,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:16:19,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:16:19,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:16:19,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:16:19,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:16:19,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:16:19,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:16:19,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:16:19,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:16:19,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:16:19,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:16:19,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:16:19,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:16:19,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:16:19,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:16:19,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:16:19,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:16:19,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:16:19,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:16:19,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:16:19,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:16:19,856 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:16:19,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:16:19,856 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:16:19,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:16:19,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:16:19,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:16:19,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:16:19,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:16:19,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:16:19,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:16:19,858 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:16:19,858 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:16:19,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:16:19,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:16:19,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:16:19,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:16:19,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:16:19,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:16:19,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:16:19,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:16:19,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:16:19,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:16:19,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:16:19,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:16:19,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:16:19,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:16:19,861 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:16:19,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:16:19,861 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:16:19,861 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 [2022-12-13 20:16:20,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:16:20,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:16:20,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:16:20,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:16:20,060 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:16:20,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/bitvector/jain_5-1.c [2022-12-13 20:16:22,631 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:16:22,764 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:16:22,765 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/sv-benchmarks/c/bitvector/jain_5-1.c [2022-12-13 20:16:22,769 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/data/532ae083a/dedb94567a0546fda0bd9a8cb609348d/FLAG429e3bc0b [2022-12-13 20:16:22,780 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/data/532ae083a/dedb94567a0546fda0bd9a8cb609348d [2022-12-13 20:16:22,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:16:22,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:16:22,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:16:22,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:16:22,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:16:22,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c38ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22, skipping insertion in model container [2022-12-13 20:16:22,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:16:22,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:16:22,912 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_8b835856-16a1-40bc-b42b-3da3f84639d2/sv-benchmarks/c/bitvector/jain_5-1.c[665,678] [2022-12-13 20:16:22,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:16:22,928 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:16:22,936 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_8b835856-16a1-40bc-b42b-3da3f84639d2/sv-benchmarks/c/bitvector/jain_5-1.c[665,678] [2022-12-13 20:16:22,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:16:22,947 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:16:22,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22 WrapperNode [2022-12-13 20:16:22,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:16:22,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:16:22,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:16:22,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:16:22,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,971 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2022-12-13 20:16:22,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:16:22,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:16:22,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:16:22,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:16:22,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:16:22,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:16:22,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:16:22,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:16:22,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (1/1) ... [2022-12-13 20:16:22,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:16:23,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:23,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:16:23,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:16:23,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:16:23,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:16:23,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:16:23,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:16:23,092 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:16:23,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:16:23,172 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:16:23,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:16:23,177 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:16:23,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:16:23 BoogieIcfgContainer [2022-12-13 20:16:23,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:16:23,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:16:23,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:16:23,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:16:23,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:16:22" (1/3) ... [2022-12-13 20:16:23,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b0514a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:16:23, skipping insertion in model container [2022-12-13 20:16:23,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:16:22" (2/3) ... [2022-12-13 20:16:23,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b0514a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:16:23, skipping insertion in model container [2022-12-13 20:16:23,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:16:23" (3/3) ... [2022-12-13 20:16:23,189 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_5-1.c [2022-12-13 20:16:23,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:16:23,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 20:16:23,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:16:23,266 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;@2aa4756e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:16:23,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 20:16:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 20:16:23,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:23,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 20:16:23,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-12-13 20:16:23,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:23,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309659631] [2022-12-13 20:16:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:23,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:23,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309659631] [2022-12-13 20:16:23,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309659631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:23,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:23,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:23,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105385963] [2022-12-13 20:16:23,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:23,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:23,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:23,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,450 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:23,480 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-12-13 20:16:23,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:23,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-13 20:16:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:23,487 INFO L225 Difference]: With dead ends: 34 [2022-12-13 20:16:23,487 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 20:16:23,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,492 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:23,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 20:16:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 20:16:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 20:16:23,516 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2022-12-13 20:16:23,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:23,516 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 20:16:23,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 20:16:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 20:16:23,517 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:23,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:16:23,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:16:23,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:23,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:23,518 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-12-13 20:16:23,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:23,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795264463] [2022-12-13 20:16:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:23,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:23,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:23,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795264463] [2022-12-13 20:16:23,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795264463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:23,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:23,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:23,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106239101] [2022-12-13 20:16:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:23,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:23,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,558 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:23,574 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-12-13 20:16:23,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:23,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-13 20:16:23,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:23,575 INFO L225 Difference]: With dead ends: 17 [2022-12-13 20:16:23,575 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 20:16:23,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,576 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:23,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:23,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 20:16:23,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 20:16:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-12-13 20:16:23,580 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2022-12-13 20:16:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:23,580 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-12-13 20:16:23,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-12-13 20:16:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 20:16:23,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:23,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:16:23,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:16:23,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:23,581 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-12-13 20:16:23,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:23,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654339039] [2022-12-13 20:16:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:23,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:23,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:23,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654339039] [2022-12-13 20:16:23,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654339039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:23,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:23,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:23,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100078585] [2022-12-13 20:16:23,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:23,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:23,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:23,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,613 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:23,627 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 20:16:23,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:23,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-13 20:16:23,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:23,628 INFO L225 Difference]: With dead ends: 16 [2022-12-13 20:16:23,628 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 20:16:23,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,629 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:23,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:23,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 20:16:23,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 20:16:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 20:16:23,633 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-12-13 20:16:23,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:23,633 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 20:16:23,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 20:16:23,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 20:16:23,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:23,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:23,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:16:23,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:23,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:23,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-12-13 20:16:23,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:23,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313682758] [2022-12-13 20:16:23,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:23,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:23,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:23,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313682758] [2022-12-13 20:16:23,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313682758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:23,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:16:23,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:16:23,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548675881] [2022-12-13 20:16:23,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:23,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:16:23,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:23,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:16:23,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,666 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:23,682 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-12-13 20:16:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:16:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 20:16:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:23,684 INFO L225 Difference]: With dead ends: 18 [2022-12-13 20:16:23,684 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 20:16:23,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:16:23,686 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:23,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 20:16:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 20:16:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-12-13 20:16:23,689 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2022-12-13 20:16:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:23,690 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-12-13 20:16:23,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-12-13 20:16:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:16:23,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:23,690 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:23,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:16:23,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:23,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash -851677744, now seen corresponding path program 1 times [2022-12-13 20:16:23,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:23,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314262436] [2022-12-13 20:16:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:23,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:23,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314262436] [2022-12-13 20:16:23,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314262436] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:23,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296974840] [2022-12-13 20:16:23,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:23,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:23,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:23,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:23,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:16:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:23,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 20:16:23,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:23,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:16:23,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296974840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:16:23,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:16:23,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-12-13 20:16:23,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257188197] [2022-12-13 20:16:23,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:16:23,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:16:23,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:23,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:16:23,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:16:23,901 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:23,936 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-12-13 20:16:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:16:23,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-13 20:16:23,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:23,937 INFO L225 Difference]: With dead ends: 17 [2022-12-13 20:16:23,937 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 20:16:23,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:16:23,939 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:23,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 20:16:23,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 20:16:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-12-13 20:16:23,942 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2022-12-13 20:16:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:23,942 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-12-13 20:16:23,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-12-13 20:16:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:16:23,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:23,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:23,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:16:24,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:24,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:24,147 INFO L85 PathProgramCache]: Analyzing trace with hash -632206243, now seen corresponding path program 1 times [2022-12-13 20:16:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:24,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211527905] [2022-12-13 20:16:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:24,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:24,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211527905] [2022-12-13 20:16:24,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211527905] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132214902] [2022-12-13 20:16:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:24,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:24,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:24,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:24,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:16:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:24,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 20:16:24,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:24,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:24,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132214902] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:24,462 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:24,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-12-13 20:16:24,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740625403] [2022-12-13 20:16:24,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:24,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:16:24,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:24,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:16:24,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:16:24,465 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:24,530 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-12-13 20:16:24,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:16:24,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 20:16:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:24,532 INFO L225 Difference]: With dead ends: 30 [2022-12-13 20:16:24,532 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 20:16:24,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:16:24,533 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:24,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 20:16:24,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-12-13 20:16:24,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:24,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-12-13 20:16:24,539 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 12 [2022-12-13 20:16:24,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:24,539 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-12-13 20:16:24,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-12-13 20:16:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 20:16:24,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:24,540 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 20:16:24,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 20:16:24,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 20:16:24,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:24,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1959809281, now seen corresponding path program 1 times [2022-12-13 20:16:24,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:24,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595733255] [2022-12-13 20:16:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:24,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:24,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:24,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595733255] [2022-12-13 20:16:24,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595733255] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:24,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485112645] [2022-12-13 20:16:24,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:24,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:24,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:24,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:24,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 20:16:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:24,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:16:24,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:24,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:24,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485112645] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:24,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:24,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 20:16:24,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911364696] [2022-12-13 20:16:24,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:24,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:16:24,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:24,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:16:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:16:24,958 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:24,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:24,987 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-12-13 20:16:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:16:24,987 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 20:16:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:24,988 INFO L225 Difference]: With dead ends: 39 [2022-12-13 20:16:24,988 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 20:16:24,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:16:24,989 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:24,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 19 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:16:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 20:16:24,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-12-13 20:16:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 36 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2022-12-13 20:16:24,994 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 14 [2022-12-13 20:16:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:24,995 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2022-12-13 20:16:24,995 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:24,995 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2022-12-13 20:16:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 20:16:24,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:24,995 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1] [2022-12-13 20:16:25,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 20:16:25,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:25,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:25,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:25,197 INFO L85 PathProgramCache]: Analyzing trace with hash 907614941, now seen corresponding path program 2 times [2022-12-13 20:16:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:25,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856857527] [2022-12-13 20:16:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:25,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:25,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856857527] [2022-12-13 20:16:25,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856857527] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:25,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804881485] [2022-12-13 20:16:25,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:16:25,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:25,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:25,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:25,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 20:16:25,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:16:25,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:16:25,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 20:16:25,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:25,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:25,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804881485] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:25,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:25,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-12-13 20:16:25,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252413213] [2022-12-13 20:16:25,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:25,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 20:16:25,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:25,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 20:16:25,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-12-13 20:16:25,600 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:25,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:25,752 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-12-13 20:16:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:16:25,753 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-13 20:16:25,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:25,754 INFO L225 Difference]: With dead ends: 59 [2022-12-13 20:16:25,754 INFO L226 Difference]: Without dead ends: 58 [2022-12-13 20:16:25,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=605, Unknown=0, NotChecked=0, Total=930 [2022-12-13 20:16:25,755 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:25,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 60 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:16:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-13 20:16:25,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2022-12-13 20:16:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.0740740740740742) internal successors, (58), 55 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2022-12-13 20:16:25,761 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 26 [2022-12-13 20:16:25,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:25,761 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2022-12-13 20:16:25,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:25,761 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2022-12-13 20:16:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 20:16:25,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:25,761 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2022-12-13 20:16:25,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 20:16:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 20:16:25,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:25,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash 49653483, now seen corresponding path program 2 times [2022-12-13 20:16:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:25,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891251930] [2022-12-13 20:16:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:26,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:26,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891251930] [2022-12-13 20:16:26,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891251930] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:26,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119058906] [2022-12-13 20:16:26,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:16:26,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:26,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:26,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:26,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 20:16:26,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:16:26,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:16:26,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 20:16:26,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 30 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:26,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:26,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119058906] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:26,535 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:26,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-12-13 20:16:26,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974950970] [2022-12-13 20:16:26,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:26,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 20:16:26,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 20:16:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2022-12-13 20:16:26,537 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:26,696 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2022-12-13 20:16:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:16:26,696 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-12-13 20:16:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:26,697 INFO L225 Difference]: With dead ends: 56 [2022-12-13 20:16:26,697 INFO L226 Difference]: Without dead ends: 55 [2022-12-13 20:16:26,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=365, Invalid=895, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 20:16:26,698 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:26,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 96 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:16:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-13 20:16:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-12-13 20:16:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:26,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2022-12-13 20:16:26,706 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 35 [2022-12-13 20:16:26,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:26,706 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2022-12-13 20:16:26,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:26,707 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2022-12-13 20:16:26,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 20:16:26,707 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:26,708 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1] [2022-12-13 20:16:26,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 20:16:26,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 20:16:26,909 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:26,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:26,909 INFO L85 PathProgramCache]: Analyzing trace with hash -739338275, now seen corresponding path program 3 times [2022-12-13 20:16:26,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:26,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411551116] [2022-12-13 20:16:26,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:26,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:27,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:27,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411551116] [2022-12-13 20:16:27,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411551116] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:27,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612444214] [2022-12-13 20:16:27,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 20:16:27,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:27,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:27,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:27,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 20:16:27,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 20:16:27,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:16:27,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 20:16:27,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:27,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:27,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612444214] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:27,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:27,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-12-13 20:16:27,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312518211] [2022-12-13 20:16:27,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:27,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 20:16:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:27,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 20:16:27,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=1571, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 20:16:27,893 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 47 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 47 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:28,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:28,399 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2022-12-13 20:16:28,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 20:16:28,400 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 47 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-12-13 20:16:28,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:28,401 INFO L225 Difference]: With dead ends: 112 [2022-12-13 20:16:28,401 INFO L226 Difference]: Without dead ends: 111 [2022-12-13 20:16:28,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1316, Invalid=2974, Unknown=0, NotChecked=0, Total=4290 [2022-12-13 20:16:28,403 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 73 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:28,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 134 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:16:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-13 20:16:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-12-13 20:16:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2022-12-13 20:16:28,411 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 54 [2022-12-13 20:16:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:28,411 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2022-12-13 20:16:28,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 47 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2022-12-13 20:16:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 20:16:28,413 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:28,413 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1] [2022-12-13 20:16:28,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 20:16:28,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:28,615 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:28,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:28,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1980830173, now seen corresponding path program 4 times [2022-12-13 20:16:28,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:28,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629396337] [2022-12-13 20:16:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:28,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:29,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:29,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629396337] [2022-12-13 20:16:29,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629396337] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:29,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897358005] [2022-12-13 20:16:29,346 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 20:16:29,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:29,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:29,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:29,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 20:16:29,397 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 20:16:29,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:16:29,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 20:16:29,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:30,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:30,847 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:30,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897358005] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:30,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:30,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-12-13 20:16:30,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987270754] [2022-12-13 20:16:30,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:30,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-13 20:16:30,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:30,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-13 20:16:30,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=6775, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 20:16:30,854 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand has 95 states, 94 states have (on average 3.4893617021276597) internal successors, (328), 95 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:32,947 INFO L93 Difference]: Finished difference Result 224 states and 239 transitions. [2022-12-13 20:16:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-13 20:16:32,947 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 3.4893617021276597) internal successors, (328), 95 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-12-13 20:16:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:32,949 INFO L225 Difference]: With dead ends: 224 [2022-12-13 20:16:32,949 INFO L226 Difference]: Without dead ends: 223 [2022-12-13 20:16:32,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7098 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5452, Invalid=13454, Unknown=0, NotChecked=0, Total=18906 [2022-12-13 20:16:32,952 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 359 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:32,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 265 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 20:16:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-12-13 20:16:32,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-12-13 20:16:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.0045045045045045) internal successors, (223), 222 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2022-12-13 20:16:32,973 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 110 [2022-12-13 20:16:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:32,973 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2022-12-13 20:16:32,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 3.4893617021276597) internal successors, (328), 95 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2022-12-13 20:16:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-13 20:16:32,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:32,977 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 31, 1, 1, 1] [2022-12-13 20:16:32,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 20:16:33,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:33,179 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1892416035, now seen corresponding path program 5 times [2022-12-13 20:16:33,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:33,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469774830] [2022-12-13 20:16:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 0 proven. 3348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:35,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:35,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469774830] [2022-12-13 20:16:35,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469774830] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:35,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077235642] [2022-12-13 20:16:35,248 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 20:16:35,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:35,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:35,249 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:35,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 20:16:35,427 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-12-13 20:16:35,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:16:35,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-13 20:16:35,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:16:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 0 proven. 3348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:37,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:16:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 0 proven. 3348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:40,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077235642] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:16:40,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:16:40,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2022-12-13 20:16:40,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501823122] [2022-12-13 20:16:40,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:16:40,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-12-13 20:16:40,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:16:40,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-12-13 20:16:40,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8163, Invalid=28127, Unknown=0, NotChecked=0, Total=36290 [2022-12-13 20:16:40,956 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand has 191 states, 190 states have (on average 3.4947368421052634) internal successors, (664), 191 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:51,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:16:51,896 INFO L93 Difference]: Finished difference Result 448 states and 479 transitions. [2022-12-13 20:16:51,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-13 20:16:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 3.4947368421052634) internal successors, (664), 191 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2022-12-13 20:16:51,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:16:51,898 INFO L225 Difference]: With dead ends: 448 [2022-12-13 20:16:51,898 INFO L226 Difference]: Without dead ends: 447 [2022-12-13 20:16:51,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30538 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=22172, Invalid=57070, Unknown=0, NotChecked=0, Total=79242 [2022-12-13 20:16:51,903 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1851 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:16:51,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 531 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:16:51,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-12-13 20:16:51,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2022-12-13 20:16:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.0022421524663676) internal successors, (447), 446 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 447 transitions. [2022-12-13 20:16:51,922 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 447 transitions. Word has length 222 [2022-12-13 20:16:51,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:16:51,922 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 447 transitions. [2022-12-13 20:16:51,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 3.4947368421052634) internal successors, (664), 191 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:16:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 447 transitions. [2022-12-13 20:16:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-12-13 20:16:51,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:16:51,927 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 63, 1, 1, 1] [2022-12-13 20:16:51,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 20:16:52,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 20:16:52,129 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:16:52,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:16:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash -319689251, now seen corresponding path program 6 times [2022-12-13 20:16:52,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:16:52,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804224420] [2022-12-13 20:16:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:16:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:16:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:16:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13860 backedges. 0 proven. 13860 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:16:59,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:16:59,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804224420] [2022-12-13 20:16:59,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804224420] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:16:59,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983356833] [2022-12-13 20:16:59,544 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 20:16:59,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:16:59,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:16:59,545 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:16:59,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 20:16:59,974 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-12-13 20:16:59,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:16:59,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 129 conjunts are in the unsatisfiable core [2022-12-13 20:16:59,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:17:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 13860 backedges. 0 proven. 13860 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:17:07,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:17:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 13860 backedges. 0 proven. 13860 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:17:19,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983356833] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:17:19,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:17:19,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2022-12-13 20:17:19,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743981667] [2022-12-13 20:17:19,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:17:19,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2022-12-13 20:17:19,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:17:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2022-12-13 20:17:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31699, Invalid=114607, Unknown=0, NotChecked=0, Total=146306 [2022-12-13 20:17:19,763 INFO L87 Difference]: Start difference. First operand 447 states and 447 transitions. Second operand has 383 states, 382 states have (on average 3.4973821989528795) internal successors, (1336), 383 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:39,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:18:39,516 INFO L93 Difference]: Finished difference Result 896 states and 959 transitions. [2022-12-13 20:18:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-12-13 20:18:39,517 INFO L78 Accepts]: Start accepts. Automaton has has 383 states, 382 states have (on average 3.4973821989528795) internal successors, (1336), 383 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 446 [2022-12-13 20:18:39,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:18:39,519 INFO L225 Difference]: With dead ends: 896 [2022-12-13 20:18:39,519 INFO L226 Difference]: Without dead ends: 895 [2022-12-13 20:18:39,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1205 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 568 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126570 ImplicationChecksByTransitivity, 94.2s TimeCoverageRelationStatistics Valid=89404, Invalid=234926, Unknown=0, NotChecked=0, Total=324330 [2022-12-13 20:18:39,534 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7945 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 1989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7945 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1989 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:18:39,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7945 Valid, 1092 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1989 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 20:18:39,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-12-13 20:18:39,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2022-12-13 20:18:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 894 states have (on average 1.0011185682326622) internal successors, (895), 894 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 895 transitions. [2022-12-13 20:18:39,565 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 895 transitions. Word has length 446 [2022-12-13 20:18:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:18:39,566 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 895 transitions. [2022-12-13 20:18:39,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 3.4973821989528795) internal successors, (1336), 383 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:18:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 895 transitions. [2022-12-13 20:18:39,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2022-12-13 20:18:39,584 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:18:39,584 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 127, 127, 127, 127, 127, 1, 1, 1] [2022-12-13 20:18:39,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 20:18:39,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:18:39,786 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:18:39,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:18:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash 374193629, now seen corresponding path program 7 times [2022-12-13 20:18:39,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:18:39,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203138498] [2022-12-13 20:18:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:18:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:18:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:19:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 56388 backedges. 0 proven. 56388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:19:18,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:19:18,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203138498] [2022-12-13 20:19:18,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203138498] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:19:18,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446506563] [2022-12-13 20:19:18,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 20:19:18,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:19:18,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:19:18,019 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:19:18,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 20:19:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:19:18,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 257 conjunts are in the unsatisfiable core [2022-12-13 20:19:18,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:19:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 56388 backedges. 0 proven. 56388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:19:47,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:20:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 56388 backedges. 0 proven. 56388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:20:36,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446506563] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:20:36,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:20:36,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 766 [2022-12-13 20:20:36,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307926112] [2022-12-13 20:20:36,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:20:36,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 767 states [2022-12-13 20:20:36,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:20:37,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 767 interpolants. [2022-12-13 20:20:37,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124851, Invalid=462671, Unknown=0, NotChecked=0, Total=587522 [2022-12-13 20:20:37,026 INFO L87 Difference]: Start difference. First operand 895 states and 895 transitions. Second operand has 767 states, 766 states have (on average 3.4986945169712795) internal successors, (2680), 767 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:03,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:03,553 INFO L93 Difference]: Finished difference Result 1792 states and 1919 transitions. [2022-12-13 20:30:03,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-12-13 20:30:03,554 INFO L78 Accepts]: Start accepts. Automaton has has 767 states, 766 states have (on average 3.4986945169712795) internal successors, (2680), 767 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 894 [2022-12-13 20:30:03,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:03,558 INFO L225 Difference]: With dead ends: 1792 [2022-12-13 20:30:03,558 INFO L226 Difference]: Without dead ends: 1791 [2022-12-13 20:30:03,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2421 GetRequests, 1277 SyntacticMatches, 0 SemanticMatches, 1144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515242 ImplicationChecksByTransitivity, 590.0s TimeCoverageRelationStatistics Valid=359036, Invalid=953134, Unknown=0, NotChecked=0, Total=1312170 [2022-12-13 20:30:03,632 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 33089 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 8275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33089 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 10757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8275 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:03,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33089 Valid, 2122 Invalid, 10757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8275 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-13 20:30:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2022-12-13 20:30:03,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1791. [2022-12-13 20:30:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1790 states have (on average 1.000558659217877) internal successors, (1791), 1790 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 1791 transitions. [2022-12-13 20:30:03,733 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 1791 transitions. Word has length 894 [2022-12-13 20:30:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:03,734 INFO L495 AbstractCegarLoop]: Abstraction has 1791 states and 1791 transitions. [2022-12-13 20:30:03,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 767 states, 766 states have (on average 3.4986945169712795) internal successors, (2680), 767 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 1791 transitions. [2022-12-13 20:30:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1791 [2022-12-13 20:30:03,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:03,749 INFO L195 NwaCegarLoop]: trace histogram [256, 256, 255, 255, 255, 255, 255, 1, 1, 1] [2022-12-13 20:30:03,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 20:30:03,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b835856-16a1-40bc-b42b-3da3f84639d2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 20:30:03,950 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 20:30:03,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:03,951 INFO L85 PathProgramCache]: Analyzing trace with hash 545611229, now seen corresponding path program 8 times [2022-12-13 20:30:03,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:03,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83365923] [2022-12-13 20:30:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat