./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a --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 c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85 --- 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-b5237d8 [2022-11-21 17:23:52,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:23:52,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:23:52,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:23:52,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:23:52,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:23:52,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:23:52,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:23:52,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:23:52,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:23:52,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:23:52,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:23:52,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:23:52,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:23:52,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:23:52,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:23:52,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:23:52,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:23:52,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:23:52,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:23:52,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:23:52,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:23:52,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:23:52,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:23:52,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:23:52,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:23:52,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:23:52,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:23:52,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:23:52,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:23:52,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:23:52,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:23:52,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:23:52,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:23:52,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:23:52,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:23:52,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:23:52,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:23:52,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:23:52,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:23:52,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:23:52,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:23:52,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:23:52,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:23:52,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:23:52,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:23:52,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:23:52,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:23:52,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:23:52,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:23:52,622 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:23:52,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:23:52,623 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:23:52,623 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:23:52,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:23:52,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:23:52,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:23:52,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:23:52,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:23:52,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:23:52,624 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:23:52,625 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:23:52,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:23:52,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:23:52,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:23:52,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:23:52,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:23:52,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:23:52,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:23:52,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:23:52,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:23:52,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:23:52,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:23:52,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:23:52,628 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:23:52,628 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:23:52,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:23:52,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85 [2022-11-21 17:23:52,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:23:52,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:23:52,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:23:52,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:23:52,966 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:23:52,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2022-11-21 17:23:56,304 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:23:56,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:23:56,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2022-11-21 17:23:56,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/data/13c95b60f/8f80af56eaa644d0a30b0bb5165aa02a/FLAG2d40d8b96 [2022-11-21 17:23:56,544 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/data/13c95b60f/8f80af56eaa644d0a30b0bb5165aa02a [2022-11-21 17:23:56,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:23:56,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:23:56,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:23:56,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:23:56,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:23:56,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e93699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56, skipping insertion in model container [2022-11-21 17:23:56,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:23:56,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:23:56,761 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_fdda218e-7385-40d1-a52e-0c3cc022685e/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467] [2022-11-21 17:23:56,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:23:56,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:23:56,793 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_fdda218e-7385-40d1-a52e-0c3cc022685e/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467] [2022-11-21 17:23:56,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:23:56,811 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:23:56,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56 WrapperNode [2022-11-21 17:23:56,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:23:56,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:23:56,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:23:56,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:23:56,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,853 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-21 17:23:56,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:23:56,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:23:56,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:23:56,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:23:56,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:23:56,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:23:56,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:23:56,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:23:56,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (1/1) ... [2022-11-21 17:23:56,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:23:56,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:56,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:23:56,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:23:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:23:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:23:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:23:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:23:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-21 17:23:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-21 17:23:57,077 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:23:57,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:23:57,270 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:23:57,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:23:57,289 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:23:57,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:23:57 BoogieIcfgContainer [2022-11-21 17:23:57,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:23:57,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:23:57,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:23:57,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:23:57,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:23:56" (1/3) ... [2022-11-21 17:23:57,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c3faac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:23:57, skipping insertion in model container [2022-11-21 17:23:57,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:23:56" (2/3) ... [2022-11-21 17:23:57,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c3faac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:23:57, skipping insertion in model container [2022-11-21 17:23:57,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:23:57" (3/3) ... [2022-11-21 17:23:57,314 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i20_o20-1.c [2022-11-21 17:23:57,346 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:23:57,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 17:23:57,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:23:57,427 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;@59f516b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:23:57,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 17:23:57,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 17:23:57,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 17:23:57,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:57,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 17:23:57,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:23:57,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-11-21 17:23:57,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:57,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351341482] [2022-11-21 17:23:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:57,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:57,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351341482] [2022-11-21 17:23:57,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351341482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:57,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:57,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:23:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649054961] [2022-11-21 17:23:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:57,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:57,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:57,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:57,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:23:57,821 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:23:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:57,932 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-11-21 17:23:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:23:57,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-21 17:23:57,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:57,943 INFO L225 Difference]: With dead ends: 26 [2022-11-21 17:23:57,944 INFO L226 Difference]: Without dead ends: 16 [2022-11-21 17:23:57,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:57,957 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:57,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:23:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-21 17:23:58,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-21 17:23:58,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:23:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-21 17:23:58,006 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2022-11-21 17:23:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:58,008 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-21 17:23:58,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:23:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-21 17:23:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 17:23:58,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:58,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:58,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:23:58,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:23:58,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:58,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1829163585, now seen corresponding path program 1 times [2022-11-21 17:23:58,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:58,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849265090] [2022-11-21 17:23:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:58,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:58,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:58,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849265090] [2022-11-21 17:23:58,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849265090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:58,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:58,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:23:58,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156254875] [2022-11-21 17:23:58,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:58,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:58,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:58,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:58,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:23:58,115 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:23:58,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:58,201 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-11-21 17:23:58,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:23:58,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 17:23:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:58,213 INFO L225 Difference]: With dead ends: 31 [2022-11-21 17:23:58,214 INFO L226 Difference]: Without dead ends: 26 [2022-11-21 17:23:58,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:58,216 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:58,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:23:58,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-21 17:23:58,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-21 17:23:58,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 17:23:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-21 17:23:58,231 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-11-21 17:23:58,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:58,232 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-21 17:23:58,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:23:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-21 17:23:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:23:58,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:58,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:58,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:23:58,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:23:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-11-21 17:23:58,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:58,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732425218] [2022-11-21 17:23:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:58,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:58,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732425218] [2022-11-21 17:23:58,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732425218] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:58,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279871106] [2022-11-21 17:23:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:58,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:58,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:58,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:58,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:23:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:58,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:23:58,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:58,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:23:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:58,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279871106] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:23:58,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:23:58,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-21 17:23:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329126974] [2022-11-21 17:23:58,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:23:58,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:23:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:58,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:23:58,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:23:58,730 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:23:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:59,028 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-11-21 17:23:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:23:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 17:23:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:59,034 INFO L225 Difference]: With dead ends: 74 [2022-11-21 17:23:59,034 INFO L226 Difference]: Without dead ends: 66 [2022-11-21 17:23:59,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-11-21 17:23:59,041 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:59,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 89 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:23:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-21 17:23:59,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-11-21 17:23:59,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-21 17:23:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-11-21 17:23:59,061 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-11-21 17:23:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:59,062 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-11-21 17:23:59,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:23:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-11-21 17:23:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 17:23:59,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:59,067 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:59,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:59,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:59,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:23:59,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-11-21 17:23:59,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:59,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795096605] [2022-11-21 17:23:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 17:23:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 17:23:59,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:59,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795096605] [2022-11-21 17:23:59,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795096605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:59,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:59,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:23:59,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966767016] [2022-11-21 17:23:59,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:59,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:59,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:59,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:59,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:59,381 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:23:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:59,402 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-11-21 17:23:59,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:23:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-21 17:23:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:59,405 INFO L225 Difference]: With dead ends: 74 [2022-11-21 17:23:59,410 INFO L226 Difference]: Without dead ends: 72 [2022-11-21 17:23:59,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:59,412 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:59,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:23:59,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-21 17:23:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-21 17:23:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-21 17:23:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-11-21 17:23:59,429 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-11-21 17:23:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:59,430 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-11-21 17:23:59,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:23:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-11-21 17:23:59,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 17:23:59,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:59,431 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:59,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:23:59,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:23:59,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:59,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-11-21 17:23:59,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:59,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130146760] [2022-11-21 17:23:59,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:59,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 17:23:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:59,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:23:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 17:23:59,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:59,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130146760] [2022-11-21 17:23:59,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130146760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:59,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477362923] [2022-11-21 17:23:59,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:59,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:59,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:59,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:23:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:59,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 17:23:59,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:23:59,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:24:00,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477362923] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:00,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:00,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-11-21 17:24:00,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769470667] [2022-11-21 17:24:00,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:00,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 17:24:00,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:00,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 17:24:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 17:24:00,348 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-21 17:24:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:00,731 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-11-21 17:24:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:24:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-11-21 17:24:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:00,737 INFO L225 Difference]: With dead ends: 101 [2022-11-21 17:24:00,737 INFO L226 Difference]: Without dead ends: 79 [2022-11-21 17:24:00,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-11-21 17:24:00,740 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 115 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:00,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 91 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:24:00,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-21 17:24:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-11-21 17:24:00,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-21 17:24:00,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-11-21 17:24:00,764 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-11-21 17:24:00,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:00,765 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-11-21 17:24:00,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-21 17:24:00,765 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-11-21 17:24:00,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-21 17:24:00,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:00,766 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-21 17:24:00,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:00,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:00,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-11-21 17:24:00,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:00,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393723946] [2022-11-21 17:24:00,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:00,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:01,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:01,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393723946] [2022-11-21 17:24:01,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393723946] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:01,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885701110] [2022-11-21 17:24:01,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:24:01,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:01,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:01,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:01,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:24:01,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:24:01,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:01,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 17:24:01,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:01,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:01,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885701110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:01,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:01,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-21 17:24:01,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129210376] [2022-11-21 17:24:01,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:01,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-21 17:24:01,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-21 17:24:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-11-21 17:24:01,597 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:02,088 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-11-21 17:24:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 17:24:02,089 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-21 17:24:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:02,091 INFO L225 Difference]: With dead ends: 220 [2022-11-21 17:24:02,091 INFO L226 Difference]: Without dead ends: 197 [2022-11-21 17:24:02,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2022-11-21 17:24:02,093 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 304 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:02,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:24:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-21 17:24:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-11-21 17:24:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-21 17:24:02,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-11-21 17:24:02,146 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-11-21 17:24:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:02,147 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-11-21 17:24:02,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-11-21 17:24:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-21 17:24:02,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:02,150 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:02,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:02,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:02,358 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:02,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-11-21 17:24:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:02,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162564443] [2022-11-21 17:24:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:02,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 17:24:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,437 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-21 17:24:02,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:02,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162564443] [2022-11-21 17:24:02,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162564443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:02,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:02,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:24:02,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424446320] [2022-11-21 17:24:02,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:02,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:24:02,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:02,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:24:02,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:24:02,441 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:24:02,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:02,459 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-11-21 17:24:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:24:02,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-21 17:24:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:02,463 INFO L225 Difference]: With dead ends: 177 [2022-11-21 17:24:02,464 INFO L226 Difference]: Without dead ends: 175 [2022-11-21 17:24:02,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:24:02,466 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:02,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:24:02,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-21 17:24:02,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-21 17:24:02,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-21 17:24:02,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-11-21 17:24:02,493 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-11-21 17:24:02,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:02,493 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-11-21 17:24:02,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:24:02,493 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-11-21 17:24:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-21 17:24:02,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:02,502 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 17:24:02,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:24:02,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-11-21 17:24:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:02,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88349886] [2022-11-21 17:24:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:02,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 17:24:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 17:24:02,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:02,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88349886] [2022-11-21 17:24:02,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88349886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614346269] [2022-11-21 17:24:02,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:24:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:02,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:02,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:24:02,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:24:02,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:02,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 17:24:02,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 17:24:03,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 17:24:03,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614346269] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:03,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:03,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 26 [2022-11-21 17:24:03,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30817234] [2022-11-21 17:24:03,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:03,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-21 17:24:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-21 17:24:03,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-11-21 17:24:03,627 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-21 17:24:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:03,932 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-11-21 17:24:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 17:24:03,933 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-11-21 17:24:03,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:03,940 INFO L225 Difference]: With dead ends: 224 [2022-11-21 17:24:03,940 INFO L226 Difference]: Without dead ends: 157 [2022-11-21 17:24:03,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2022-11-21 17:24:03,944 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 179 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:03,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 315 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:24:03,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-21 17:24:03,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-11-21 17:24:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-11-21 17:24:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-11-21 17:24:03,967 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-11-21 17:24:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:03,967 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-11-21 17:24:03,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-21 17:24:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-11-21 17:24:03,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-21 17:24:03,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:03,972 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-21 17:24:03,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:04,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:04,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-11-21 17:24:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:04,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80833690] [2022-11-21 17:24:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:04,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:04,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80833690] [2022-11-21 17:24:04,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80833690] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:04,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901937361] [2022-11-21 17:24:04,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:24:04,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:04,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:04,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 17:24:04,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-21 17:24:04,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:04,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-21 17:24:04,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:04,937 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:04,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:05,652 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:05,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901937361] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:05,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:05,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-21 17:24:05,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468695038] [2022-11-21 17:24:05,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:05,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-21 17:24:05,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:05,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-21 17:24:05,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-11-21 17:24:05,656 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:07,123 INFO L93 Difference]: Finished difference Result 431 states and 464 transitions. [2022-11-21 17:24:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-21 17:24:07,123 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-21 17:24:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:07,130 INFO L225 Difference]: With dead ends: 431 [2022-11-21 17:24:07,130 INFO L226 Difference]: Without dead ends: 371 [2022-11-21 17:24:07,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1742, Invalid=4578, Unknown=0, NotChecked=0, Total=6320 [2022-11-21 17:24:07,134 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 718 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:07,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 535 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:24:07,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-21 17:24:07,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2022-11-21 17:24:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 276 states have (on average 1.1268115942028984) internal successors, (311), 275 states have internal predecessors, (311), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2022-11-21 17:24:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 385 transitions. [2022-11-21 17:24:07,161 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 385 transitions. Word has length 57 [2022-11-21 17:24:07,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:07,162 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 385 transitions. [2022-11-21 17:24:07,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 385 transitions. [2022-11-21 17:24:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-21 17:24:07,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:07,170 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 17:24:07,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:07,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:07,377 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:07,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:07,377 INFO L85 PathProgramCache]: Analyzing trace with hash 292034471, now seen corresponding path program 3 times [2022-11-21 17:24:07,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:07,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105056979] [2022-11-21 17:24:07,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:07,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:24:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:07,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 17:24:08,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105056979] [2022-11-21 17:24:08,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105056979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004680566] [2022-11-21 17:24:08,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:24:08,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:08,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:08,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:08,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 17:24:08,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-21 17:24:08,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:08,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 17:24:08,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-21 17:24:08,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-21 17:24:08,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004680566] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:08,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:08,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 7, 7] total 38 [2022-11-21 17:24:08,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426233481] [2022-11-21 17:24:08,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:08,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-21 17:24:08,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:08,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-21 17:24:08,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1226, Unknown=0, NotChecked=0, Total=1406 [2022-11-21 17:24:08,577 INFO L87 Difference]: Start difference. First operand 349 states and 385 transitions. Second operand has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-21 17:24:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:10,068 INFO L93 Difference]: Finished difference Result 702 states and 802 transitions. [2022-11-21 17:24:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-21 17:24:10,069 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-11-21 17:24:10,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:10,072 INFO L225 Difference]: With dead ends: 702 [2022-11-21 17:24:10,072 INFO L226 Difference]: Without dead ends: 647 [2022-11-21 17:24:10,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=742, Invalid=4660, Unknown=0, NotChecked=0, Total=5402 [2022-11-21 17:24:10,077 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 332 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:10,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 366 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:24:10,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-11-21 17:24:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 638. [2022-11-21 17:24:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 509 states have (on average 1.0667976424361494) internal successors, (543), 504 states have internal predecessors, (543), 24 states have call successors, (24), 23 states have call predecessors, (24), 103 states have return successors, (110), 110 states have call predecessors, (110), 23 states have call successors, (110) [2022-11-21 17:24:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 677 transitions. [2022-11-21 17:24:10,109 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 677 transitions. Word has length 74 [2022-11-21 17:24:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:10,109 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 677 transitions. [2022-11-21 17:24:10,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-21 17:24:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 677 transitions. [2022-11-21 17:24:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-21 17:24:10,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:10,112 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-21 17:24:10,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:10,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 17:24:10,319 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:10,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:10,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1383014436, now seen corresponding path program 4 times [2022-11-21 17:24:10,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:10,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533147538] [2022-11-21 17:24:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:24:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-21 17:24:11,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533147538] [2022-11-21 17:24:11,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533147538] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592948376] [2022-11-21 17:24:11,065 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 17:24:11,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:11,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:11,067 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:11,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 17:24:11,162 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 17:24:11,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:11,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-21 17:24:11,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 354 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-21 17:24:11,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 420 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 17:24:13,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592948376] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:13,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:13,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 29] total 46 [2022-11-21 17:24:13,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682065445] [2022-11-21 17:24:13,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:13,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-21 17:24:13,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-21 17:24:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=1677, Unknown=0, NotChecked=0, Total=2070 [2022-11-21 17:24:13,935 INFO L87 Difference]: Start difference. First operand 638 states and 677 transitions. Second operand has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-21 17:24:14,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:14,592 INFO L93 Difference]: Finished difference Result 741 states and 779 transitions. [2022-11-21 17:24:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-21 17:24:14,593 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2022-11-21 17:24:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:14,601 INFO L225 Difference]: With dead ends: 741 [2022-11-21 17:24:14,601 INFO L226 Difference]: Without dead ends: 477 [2022-11-21 17:24:14,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=919, Invalid=3371, Unknown=0, NotChecked=0, Total=4290 [2022-11-21 17:24:14,609 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 355 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:14,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 737 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:24:14,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-21 17:24:14,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 435. [2022-11-21 17:24:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 348 states have (on average 1.0775862068965518) internal successors, (375), 343 states have internal predecessors, (375), 24 states have call successors, (24), 23 states have call predecessors, (24), 61 states have return successors, (68), 68 states have call predecessors, (68), 23 states have call successors, (68) [2022-11-21 17:24:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 467 transitions. [2022-11-21 17:24:14,641 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 467 transitions. Word has length 99 [2022-11-21 17:24:14,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:14,643 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 467 transitions. [2022-11-21 17:24:14,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-21 17:24:14,643 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 467 transitions. [2022-11-21 17:24:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 17:24:14,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:14,649 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-21 17:24:14,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:14,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 17:24:14,859 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 848460513, now seen corresponding path program 4 times [2022-11-21 17:24:14,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:14,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796173826] [2022-11-21 17:24:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:14,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:16,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:16,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796173826] [2022-11-21 17:24:16,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796173826] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:16,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993493303] [2022-11-21 17:24:16,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 17:24:16,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:16,422 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:16,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 17:24:16,529 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 17:24:16,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:16,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-21 17:24:16,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:16,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:19,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993493303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:19,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:19,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-21 17:24:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519473410] [2022-11-21 17:24:19,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:19,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-21 17:24:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:19,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-21 17:24:19,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-11-21 17:24:19,284 INFO L87 Difference]: Start difference. First operand 435 states and 467 transitions. Second operand has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:20,406 INFO L93 Difference]: Finished difference Result 521 states and 544 transitions. [2022-11-21 17:24:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-21 17:24:20,407 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-21 17:24:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:20,413 INFO L225 Difference]: With dead ends: 521 [2022-11-21 17:24:20,413 INFO L226 Difference]: Without dead ends: 425 [2022-11-21 17:24:20,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2873 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4100, Invalid=9706, Unknown=0, NotChecked=0, Total=13806 [2022-11-21 17:24:20,419 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 759 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:20,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 726 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 17:24:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-11-21 17:24:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 405. [2022-11-21 17:24:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 325 states have (on average 1.0769230769230769) internal successors, (350), 319 states have internal predecessors, (350), 24 states have call successors, (24), 23 states have call predecessors, (24), 55 states have return successors, (62), 62 states have call predecessors, (62), 23 states have call successors, (62) [2022-11-21 17:24:20,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 436 transitions. [2022-11-21 17:24:20,476 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 436 transitions. Word has length 117 [2022-11-21 17:24:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:20,476 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 436 transitions. [2022-11-21 17:24:20,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:24:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 436 transitions. [2022-11-21 17:24:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-21 17:24:20,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:20,484 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-21 17:24:20,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:20,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-21 17:24:20,691 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:20,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:20,691 INFO L85 PathProgramCache]: Analyzing trace with hash 18589604, now seen corresponding path program 5 times [2022-11-21 17:24:20,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:20,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210751686] [2022-11-21 17:24:20,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:20,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:20,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 17:24:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 20 proven. 99 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-11-21 17:24:21,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:21,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210751686] [2022-11-21 17:24:21,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210751686] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:21,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668454873] [2022-11-21 17:24:21,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 17:24:21,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:21,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:21,277 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:21,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 17:24:21,394 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-11-21 17:24:21,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:21,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-21 17:24:21,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-21 17:24:21,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-21 17:24:23,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668454873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:23,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:23,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-11-21 17:24:23,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657289831] [2022-11-21 17:24:23,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:23,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-21 17:24:23,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-21 17:24:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-11-21 17:24:23,066 INFO L87 Difference]: Start difference. First operand 405 states and 436 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-21 17:24:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:23,469 INFO L93 Difference]: Finished difference Result 922 states and 1068 transitions. [2022-11-21 17:24:23,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 17:24:23,475 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 139 [2022-11-21 17:24:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:23,481 INFO L225 Difference]: With dead ends: 922 [2022-11-21 17:24:23,482 INFO L226 Difference]: Without dead ends: 921 [2022-11-21 17:24:23,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-11-21 17:24:23,485 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 78 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:23,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 78 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:24:23,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-21 17:24:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-11-21 17:24:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 741 states have (on average 1.0337381916329285) internal successors, (766), 727 states have internal predecessors, (766), 24 states have call successors, (24), 23 states have call predecessors, (24), 155 states have return successors, (170), 170 states have call predecessors, (170), 23 states have call successors, (170) [2022-11-21 17:24:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 960 transitions. [2022-11-21 17:24:23,540 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 960 transitions. Word has length 139 [2022-11-21 17:24:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:23,541 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 960 transitions. [2022-11-21 17:24:23,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-21 17:24:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 960 transitions. [2022-11-21 17:24:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-21 17:24:23,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:23,546 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-11-21 17:24:23,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:23,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 17:24:23,754 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:23,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash -706464220, now seen corresponding path program 6 times [2022-11-21 17:24:23,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:23,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481496123] [2022-11-21 17:24:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:24:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:24,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:25,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 20 proven. 511 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-11-21 17:24:26,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:26,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481496123] [2022-11-21 17:24:26,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481496123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:26,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753641032] [2022-11-21 17:24:26,184 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-21 17:24:26,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:26,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:26,186 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:26,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 17:24:26,368 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-11-21 17:24:26,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:24:26,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-21 17:24:26,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-21 17:24:26,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:24:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-21 17:24:38,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753641032] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:24:38,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:24:38,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2022-11-21 17:24:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416983008] [2022-11-21 17:24:38,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:24:38,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-21 17:24:38,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:38,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-21 17:24:38,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2022-11-21 17:24:38,568 INFO L87 Difference]: Start difference. First operand 921 states and 960 transitions. Second operand has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-21 17:24:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:39,668 INFO L93 Difference]: Finished difference Result 2639 states and 3035 transitions. [2022-11-21 17:24:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-21 17:24:39,669 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 179 [2022-11-21 17:24:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:24:39,675 INFO L225 Difference]: With dead ends: 2639 [2022-11-21 17:24:39,676 INFO L226 Difference]: Without dead ends: 1472 [2022-11-21 17:24:39,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3039, Invalid=12461, Unknown=0, NotChecked=0, Total=15500 [2022-11-21 17:24:39,683 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 158 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:24:39,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 90 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:24:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-11-21 17:24:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-11-21 17:24:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1185 states have (on average 1.019409282700422) internal successors, (1208), 1164 states have internal predecessors, (1208), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2022-11-21 17:24:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1516 transitions. [2022-11-21 17:24:39,736 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1516 transitions. Word has length 179 [2022-11-21 17:24:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:24:39,737 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 1516 transitions. [2022-11-21 17:24:39,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-21 17:24:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1516 transitions. [2022-11-21 17:24:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-21 17:24:39,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:24:39,749 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-11-21 17:24:39,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 17:24:39,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 17:24:39,956 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:24:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:39,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1980487428, now seen corresponding path program 7 times [2022-11-21 17:24:39,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:39,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74427876] [2022-11-21 17:24:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:39,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 17:24:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:44,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:48,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:49,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:50,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:51,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 17:24:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 54 proven. 2295 refuted. 0 times theorem prover too weak. 7209 trivial. 0 not checked. [2022-11-21 17:24:52,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:52,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74427876] [2022-11-21 17:24:52,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74427876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:24:52,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590077072] [2022-11-21 17:24:52,425 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-21 17:24:52,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:24:52,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:52,426 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:24:52,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 17:24:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:52,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-21 17:24:52,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:24:57,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 3648 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-11-21 17:24:57,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:27:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 5418 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-21 17:27:14,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590077072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:27:14,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:27:14,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 83, 113] total 226 [2022-11-21 17:27:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383258139] [2022-11-21 17:27:14,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:27:14,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2022-11-21 17:27:14,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:27:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2022-11-21 17:27:14,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5220, Invalid=45630, Unknown=0, NotChecked=0, Total=50850 [2022-11-21 17:27:14,781 INFO L87 Difference]: Start difference. First operand 1472 states and 1516 transitions. Second operand has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-11-21 17:27:16,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:27:16,673 INFO L93 Difference]: Finished difference Result 1472 states and 1516 transitions. [2022-11-21 17:27:16,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-21 17:27:16,679 INFO L78 Accepts]: Start accepts. Automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) Word has length 429 [2022-11-21 17:27:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:27:16,682 INFO L225 Difference]: With dead ends: 1472 [2022-11-21 17:27:16,682 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:27:16,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 726 SyntacticMatches, 31 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33237 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=8088, Invalid=54162, Unknown=0, NotChecked=0, Total=62250 [2022-11-21 17:27:16,694 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:27:16,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 127 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-21 17:27:16,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:27:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:27:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:27:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:27:16,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 429 [2022-11-21 17:27:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:27:16,697 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:27:16,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-11-21 17:27:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:27:16,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:27:16,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-21 17:27:16,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-21 17:27:16,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-21 17:27:16,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-21 17:27:16,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 17:27:16,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:27:16,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:27:17,739 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:27:17,739 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:27:17,739 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:27:17,739 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:27:17,739 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-21 17:27:17,739 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (<= 20 |ULTIMATE.start_main_~input~0#1|) (<= |ULTIMATE.start_main_~input~0#1| 20)) [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,740 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,741 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,741 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-21 17:27:17,741 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,741 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or .cse0 (not (<= |id_#in~x| 20)) (not (<= 12 |id_#in~x|))) (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 2))) (or (not (<= 10 |id_#in~x|)) (not (<= |id_#in~x| 10)) (and (<= id_~x 10) (<= 10 id_~x))) (or (not (<= 3 |id_#in~x|)) (and (<= 3 id_~x) (<= id_~x 3)) (not (<= |id_#in~x| 3))) (or (not (<= 5 |id_#in~x|)) (not (<= |id_#in~x| 5)) (and (<= 5 id_~x) (<= id_~x 5))) (or .cse0 (not (<= 11 |id_#in~x|)) (not (<= |id_#in~x| 11))) (or (not (<= 8 |id_#in~x|)) (not (<= |id_#in~x| 8)) (and (<= id_~x 8) (<= 8 id_~x))) (or .cse0 (not (<= 4 |id_#in~x|)) (not (<= |id_#in~x| 4))) (or .cse0 (not (<= |id_#in~x| 6)) (not (<= 6 |id_#in~x|))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))) (or (not (<= |id_#in~x| 7)) .cse0 (not (<= 7 |id_#in~x|))) (or (not (<= |id_#in~x| 9)) (not (<= 9 |id_#in~x|)) (and (<= id_~x 9) (<= 9 id_~x))))) [2022-11-21 17:27:17,741 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,741 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,741 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-11-21 17:27:17,745 INFO L444 BasicCegarLoop]: Path program histogram: [7, 4, 1, 1, 1, 1] [2022-11-21 17:27:17,752 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:27:17,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:27:17 BoogieIcfgContainer [2022-11-21 17:27:17,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:27:17,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:27:17,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:27:17,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:27:17,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:23:57" (3/4) ... [2022-11-21 17:27:17,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:27:17,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-21 17:27:17,775 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 17:27:17,775 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 17:27:17,775 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:27:17,775 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:27:17,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:27:17,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:27:17,815 INFO L158 Benchmark]: Toolchain (without parser) took 201266.16ms. Allocated memory was 195.0MB in the beginning and 767.6MB in the end (delta: 572.5MB). Free memory was 151.8MB in the beginning and 396.7MB in the end (delta: -244.9MB). Peak memory consumption was 330.1MB. Max. memory is 16.1GB. [2022-11-21 17:27:17,816 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 86.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:27:17,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.64ms. Allocated memory is still 195.0MB. Free memory was 151.8MB in the beginning and 141.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:27:17,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.44ms. Allocated memory is still 195.0MB. Free memory was 141.3MB in the beginning and 139.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:27:17,818 INFO L158 Benchmark]: Boogie Preprocessor took 23.44ms. Allocated memory is still 195.0MB. Free memory was 139.9MB in the beginning and 139.2MB in the end (delta: 675.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:27:17,819 INFO L158 Benchmark]: RCFGBuilder took 414.03ms. Allocated memory is still 195.0MB. Free memory was 139.2MB in the beginning and 130.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:27:17,819 INFO L158 Benchmark]: TraceAbstraction took 200462.44ms. Allocated memory was 195.0MB in the beginning and 767.6MB in the end (delta: 572.5MB). Free memory was 129.4MB in the beginning and 398.7MB in the end (delta: -269.3MB). Peak memory consumption was 304.9MB. Max. memory is 16.1GB. [2022-11-21 17:27:17,820 INFO L158 Benchmark]: Witness Printer took 55.86ms. Allocated memory is still 767.6MB. Free memory was 398.7MB in the beginning and 396.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:27:17,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 86.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.64ms. Allocated memory is still 195.0MB. Free memory was 151.8MB in the beginning and 141.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.44ms. Allocated memory is still 195.0MB. Free memory was 141.3MB in the beginning and 139.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.44ms. Allocated memory is still 195.0MB. Free memory was 139.9MB in the beginning and 139.2MB in the end (delta: 675.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.03ms. Allocated memory is still 195.0MB. Free memory was 139.2MB in the beginning and 130.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 200462.44ms. Allocated memory was 195.0MB in the beginning and 767.6MB in the end (delta: 572.5MB). Free memory was 129.4MB in the beginning and 398.7MB in the end (delta: -269.3MB). Peak memory consumption was 304.9MB. Max. memory is 16.1GB. * Witness Printer took 55.86ms. Allocated memory is still 767.6MB. Free memory was 398.7MB in the beginning and 396.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 200.3s, OverallIterations: 15, TraceHistogramMax: 55, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3338 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3263 mSDsluCounter, 3505 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3062 mSDsCounter, 826 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6050 IncrementalHoareTripleChecker+Invalid, 6876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 826 mSolverCounterUnsat, 443 mSDtfsCounter, 6050 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3070 GetRequests, 2146 SyntacticMatches, 43 SemanticMatches, 881 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48204 ImplicationChecksByTransitivity, 24.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1472occurred in iteration=14, InterpolantAutomatonStates: 429, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 152 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 49 PreInvPairs, 49 NumberOfFragments, 182 HoareAnnotationTreeSize, 49 FomulaSimplifications, 650 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1172 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 184.5s InterpolantComputationTime, 2474 NumberOfCodeBlocks, 2429 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 3638 ConstructedInterpolants, 0 QuantifiedInterpolants, 9636 SizeOfPredicates, 118 NumberOfNonLiveVariables, 2362 ConjunctsInSsa, 305 ConjunctsInUnsatCore, 37 InterpolantComputations, 4 PerfectInterpolantSequences, 24204/43739 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 17:27:17,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdda218e-7385-40d1-a52e-0c3cc022685e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE