./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e683f6e2db40131b14c5db4c44cb0bc308464b8b58cfd5d36c28d692bcb3b448 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:35:20,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:20,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:20,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:20,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:20,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:20,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:20,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:20,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:20,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:20,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:20,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:20,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:20,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:20,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:20,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:20,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:20,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:20,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:20,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:20,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:20,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:20,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:20,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:20,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:20,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:20,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:20,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:20,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:20,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:20,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:20,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:20,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:20,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:20,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:20,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:20,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:20,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:20,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:20,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:20,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:20,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:35:20,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:20,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:20,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:20,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:20,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:20,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:20,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:20,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:20,741 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:20,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:20,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:35:20,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:35:20,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:35:20,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:35:20,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:20,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:20,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:20,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:20,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:35:20,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:35:20,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:20,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:20,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:20,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:20,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:20,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:20,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:20,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:20,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:20,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:20,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:35:20,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:35:20,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:20,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:20,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:20,751 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_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e683f6e2db40131b14c5db4c44cb0bc308464b8b58cfd5d36c28d692bcb3b448 [2022-11-20 10:35:21,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:21,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:21,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:21,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:21,065 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:21,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i [2022-11-20 10:35:24,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:24,573 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:24,573 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i [2022-11-20 10:35:24,580 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/data/ab260ac2e/a542242adc844f93ad978420a4f10f32/FLAG2ce9cd68f [2022-11-20 10:35:24,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/data/ab260ac2e/a542242adc844f93ad978420a4f10f32 [2022-11-20 10:35:24,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:24,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:24,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:24,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:24,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:24,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598f423d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24, skipping insertion in model container [2022-11-20 10:35:24,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:24,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:24,793 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_12c63f8f-09dc-49a3-b7f5-73910b509fb7/sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i[822,835] [2022-11-20 10:35:24,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:24,818 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:35:24,831 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_12c63f8f-09dc-49a3-b7f5-73910b509fb7/sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i[822,835] [2022-11-20 10:35:24,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:24,851 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:35:24,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24 WrapperNode [2022-11-20 10:35:24,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:24,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:24,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:35:24,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:35:24,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,894 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-11-20 10:35:24,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:24,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:35:24,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:35:24,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:35:24,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:35:24,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:35:24,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:35:24,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:35:24,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (1/1) ... [2022-11-20 10:35:24,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:24,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:24,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:24,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:35:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:35:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:35:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:35:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:35:24,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:35:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:35:25,064 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:35:25,066 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:35:25,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:35:25,221 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:35:25,222 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:35:25,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:25 BoogieIcfgContainer [2022-11-20 10:35:25,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:35:25,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:35:25,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:35:25,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:35:25,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:35:24" (1/3) ... [2022-11-20 10:35:25,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbb2d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:25, skipping insertion in model container [2022-11-20 10:35:25,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:24" (2/3) ... [2022-11-20 10:35:25,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbb2d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:25, skipping insertion in model container [2022-11-20 10:35:25,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:25" (3/3) ... [2022-11-20 10:35:25,258 INFO L112 eAbstractionObserver]: Analyzing ICFG partial_lesser_bound-1.i [2022-11-20 10:35:25,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:35:25,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 10:35:25,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:35:25,353 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;@7ddb3b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:35:25,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 10:35:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 10:35:25,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:25,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 10:35:25,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:25,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:25,376 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-11-20 10:35:25,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:25,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14955752] [2022-11-20 10:35:25,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:25,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:25,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:25,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:25,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14955752] [2022-11-20 10:35:25,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14955752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:25,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:25,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:25,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558175472] [2022-11-20 10:35:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:25,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:25,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:25,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:25,757 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:25,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:25,934 INFO L93 Difference]: Finished difference Result 71 states and 88 transitions. [2022-11-20 10:35:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 10:35:25,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:25,947 INFO L225 Difference]: With dead ends: 71 [2022-11-20 10:35:25,947 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 10:35:25,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:25,955 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:25,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 58 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 10:35:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2022-11-20 10:35:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-11-20 10:35:25,997 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 5 [2022-11-20 10:35:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:25,998 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-11-20 10:35:25,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-11-20 10:35:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 10:35:25,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:26,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-20 10:35:26,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:35:26,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:26,002 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-11-20 10:35:26,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:26,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309079823] [2022-11-20 10:35:26,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:35:26,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:26,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309079823] [2022-11-20 10:35:26,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309079823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:26,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:26,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:26,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365656675] [2022-11-20 10:35:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:26,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:26,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:26,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:26,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:26,090 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:26,153 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-20 10:35:26,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:26,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 10:35:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:26,155 INFO L225 Difference]: With dead ends: 30 [2022-11-20 10:35:26,155 INFO L226 Difference]: Without dead ends: 29 [2022-11-20 10:35:26,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:26,157 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:26,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 31 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-20 10:35:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-11-20 10:35:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-20 10:35:26,165 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 9 [2022-11-20 10:35:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:26,166 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-20 10:35:26,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-11-20 10:35:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 10:35:26,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:26,167 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-20 10:35:26,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:35:26,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-11-20 10:35:26,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:26,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874534423] [2022-11-20 10:35:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:26,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:26,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874534423] [2022-11-20 10:35:26,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874534423] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:26,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477007750] [2022-11-20 10:35:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:26,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:26,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:26,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:26,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:35:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:26,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:35:26,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:26,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:26,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477007750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:26,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:26,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 10:35:26,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486680] [2022-11-20 10:35:26,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:26,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:35:26,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:26,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:35:26,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:35:26,623 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:26,773 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-11-20 10:35:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:35:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 10:35:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:26,776 INFO L225 Difference]: With dead ends: 41 [2022-11-20 10:35:26,778 INFO L226 Difference]: Without dead ends: 40 [2022-11-20 10:35:26,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:35:26,781 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:26,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-20 10:35:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 24. [2022-11-20 10:35:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.3) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-20 10:35:26,804 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2022-11-20 10:35:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:26,805 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-20 10:35:26,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 10:35:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 10:35:26,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:26,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:26,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:27,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:27,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:27,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-11-20 10:35:27,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:27,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111980521] [2022-11-20 10:35:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:27,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:27,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111980521] [2022-11-20 10:35:27,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111980521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:27,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838480545] [2022-11-20 10:35:27,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:27,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:27,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:27,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:27,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:35:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:27,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:35:27,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:27,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:27,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838480545] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:27,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:27,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 10:35:27,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679630170] [2022-11-20 10:35:27,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:27,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:35:27,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:27,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:35:27,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:35:27,338 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:27,495 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2022-11-20 10:35:27,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:35:27,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 10:35:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:27,500 INFO L225 Difference]: With dead ends: 62 [2022-11-20 10:35:27,501 INFO L226 Difference]: Without dead ends: 45 [2022-11-20 10:35:27,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:35:27,505 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 89 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:27,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 70 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:27,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-20 10:35:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2022-11-20 10:35:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-11-20 10:35:27,526 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 11 [2022-11-20 10:35:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:27,527 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-11-20 10:35:27,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-11-20 10:35:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 10:35:27,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:27,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:27,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 10:35:27,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:27,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:27,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-11-20 10:35:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:27,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107728453] [2022-11-20 10:35:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:27,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 10:35:27,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:27,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107728453] [2022-11-20 10:35:27,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107728453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:27,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:27,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:27,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065839288] [2022-11-20 10:35:27,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:27,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:27,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:27,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:27,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:27,890 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:27,959 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2022-11-20 10:35:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:27,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-20 10:35:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:27,961 INFO L225 Difference]: With dead ends: 45 [2022-11-20 10:35:27,962 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 10:35:27,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:27,964 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:27,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 38 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:27,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 10:35:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2022-11-20 10:35:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-20 10:35:27,974 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 19 [2022-11-20 10:35:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:27,974 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-20 10:35:27,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:27,975 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-20 10:35:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 10:35:27,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:27,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:27,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:35:27,976 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-11-20 10:35:27,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:27,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376055876] [2022-11-20 10:35:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:27,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:35:28,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:28,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376055876] [2022-11-20 10:35:28,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376055876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:28,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:28,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:28,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075412912] [2022-11-20 10:35:28,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:28,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:28,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:28,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:28,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:28,100 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:28,180 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-11-20 10:35:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:28,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-20 10:35:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:28,183 INFO L225 Difference]: With dead ends: 36 [2022-11-20 10:35:28,184 INFO L226 Difference]: Without dead ends: 35 [2022-11-20 10:35:28,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:28,185 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:28,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-20 10:35:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2022-11-20 10:35:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-20 10:35:28,192 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2022-11-20 10:35:28,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:28,192 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-20 10:35:28,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-20 10:35:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 10:35:28,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:28,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:28,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:35:28,194 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:28,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-11-20 10:35:28,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:28,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83081769] [2022-11-20 10:35:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:28,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:28,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:28,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83081769] [2022-11-20 10:35:28,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83081769] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:28,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850209392] [2022-11-20 10:35:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:28,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:28,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:28,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:28,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:35:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:28,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:35:28,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:28,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:28,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850209392] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:28,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:28,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 10:35:28,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359795037] [2022-11-20 10:35:28,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:28,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:35:28,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:28,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:35:28,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:35:28,601 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:28,782 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2022-11-20 10:35:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:35:28,783 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-20 10:35:28,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:28,783 INFO L225 Difference]: With dead ends: 77 [2022-11-20 10:35:28,784 INFO L226 Difference]: Without dead ends: 58 [2022-11-20 10:35:28,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:35:28,785 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 92 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:28,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 51 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-20 10:35:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2022-11-20 10:35:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2022-11-20 10:35:28,793 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 24 [2022-11-20 10:35:28,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:28,793 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-11-20 10:35:28,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2022-11-20 10:35:28,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:35:28,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:28,795 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:28,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:29,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 10:35:29,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:29,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-11-20 10:35:29,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:29,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246900722] [2022-11-20 10:35:29,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:29,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246900722] [2022-11-20 10:35:29,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246900722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:29,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209444614] [2022-11-20 10:35:29,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:29,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:29,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:29,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:35:29,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:29,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:29,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 10:35:29,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:29,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:30,074 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:30,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209444614] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:30,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:30,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 10:35:30,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566169206] [2022-11-20 10:35:30,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:30,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 10:35:30,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:30,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 10:35:30,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:35:30,077 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:30,540 INFO L93 Difference]: Finished difference Result 109 states and 120 transitions. [2022-11-20 10:35:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:35:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-20 10:35:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:30,542 INFO L225 Difference]: With dead ends: 109 [2022-11-20 10:35:30,542 INFO L226 Difference]: Without dead ends: 90 [2022-11-20 10:35:30,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 10:35:30,544 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 177 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:30,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 44 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:30,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-20 10:35:30,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2022-11-20 10:35:30,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 81 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2022-11-20 10:35:30,555 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 40 [2022-11-20 10:35:30,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:30,555 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2022-11-20 10:35:30,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:30,556 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2022-11-20 10:35:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 10:35:30,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:30,558 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:30,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:30,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:30,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:30,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-11-20 10:35:30,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:30,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515564423] [2022-11-20 10:35:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:30,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:31,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:31,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515564423] [2022-11-20 10:35:31,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515564423] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:31,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752183738] [2022-11-20 10:35:31,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:35:31,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:31,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:31,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:31,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:35:32,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 10:35:32,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:32,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:35:32,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-20 10:35:32,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:32,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752183738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:32,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:35:32,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-11-20 10:35:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95653501] [2022-11-20 10:35:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:32,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:32,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=897, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 10:35:32,116 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:32,205 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2022-11-20 10:35:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-20 10:35:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:32,206 INFO L225 Difference]: With dead ends: 82 [2022-11-20 10:35:32,206 INFO L226 Difference]: Without dead ends: 81 [2022-11-20 10:35:32,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:35:32,208 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:32,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:32,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-20 10:35:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2022-11-20 10:35:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0526315789473684) internal successors, (80), 77 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2022-11-20 10:35:32,218 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 72 [2022-11-20 10:35:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:32,218 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2022-11-20 10:35:32,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2022-11-20 10:35:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:35:32,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:32,221 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:32,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:32,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:32,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:32,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:32,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1288761303, now seen corresponding path program 1 times [2022-11-20 10:35:32,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:32,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302076357] [2022-11-20 10:35:32,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:32,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-20 10:35:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302076357] [2022-11-20 10:35:32,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302076357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107061750] [2022-11-20 10:35:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:32,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:32,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:32,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:32,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:35:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:32,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 10:35:32,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:35:33,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:34,982 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:35:34,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107061750] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:34,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:34,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 66 [2022-11-20 10:35:34,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096678029] [2022-11-20 10:35:34,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:34,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 10:35:34,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:34,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 10:35:34,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3198, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 10:35:34,987 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand has 66 states, 66 states have (on average 2.257575757575758) internal successors, (149), 66 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:36,329 INFO L93 Difference]: Finished difference Result 172 states and 192 transitions. [2022-11-20 10:35:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-20 10:35:36,330 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.257575757575758) internal successors, (149), 66 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-20 10:35:36,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:36,333 INFO L225 Difference]: With dead ends: 172 [2022-11-20 10:35:36,333 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 10:35:36,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2600, Invalid=6712, Unknown=0, NotChecked=0, Total=9312 [2022-11-20 10:35:36,339 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:36,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 93 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:35:36,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 10:35:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2022-11-20 10:35:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.0277777777777777) internal successors, (148), 145 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2022-11-20 10:35:36,378 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 75 [2022-11-20 10:35:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:36,379 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2022-11-20 10:35:36,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.257575757575758) internal successors, (149), 66 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,382 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2022-11-20 10:35:36,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 10:35:36,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:36,390 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:36,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:36,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:35:36,596 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1340290157, now seen corresponding path program 2 times [2022-11-20 10:35:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:36,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240561051] [2022-11-20 10:35:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-11-20 10:35:36,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:36,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240561051] [2022-11-20 10:35:36,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240561051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:36,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:36,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:36,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366319185] [2022-11-20 10:35:36,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:36,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:36,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:36,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:36,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:36,819 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:36,868 INFO L93 Difference]: Finished difference Result 154 states and 156 transitions. [2022-11-20 10:35:36,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:36,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-11-20 10:35:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:36,871 INFO L225 Difference]: With dead ends: 154 [2022-11-20 10:35:36,871 INFO L226 Difference]: Without dead ends: 152 [2022-11-20 10:35:36,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:36,872 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:36,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-20 10:35:36,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-11-20 10:35:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0266666666666666) internal successors, (154), 151 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2022-11-20 10:35:36,906 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 143 [2022-11-20 10:35:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:36,908 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2022-11-20 10:35:36,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2022-11-20 10:35:36,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 10:35:36,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:36,915 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:36,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:35:36,915 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:36,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:36,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1113559704, now seen corresponding path program 1 times [2022-11-20 10:35:36,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:36,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941037691] [2022-11-20 10:35:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:36,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-11-20 10:35:37,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:37,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941037691] [2022-11-20 10:35:37,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941037691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:37,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:37,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:37,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315839293] [2022-11-20 10:35:37,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:37,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:37,125 INFO L87 Difference]: Start difference. First operand 152 states and 154 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:37,174 INFO L93 Difference]: Finished difference Result 152 states and 154 transitions. [2022-11-20 10:35:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:37,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-11-20 10:35:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:37,176 INFO L225 Difference]: With dead ends: 152 [2022-11-20 10:35:37,176 INFO L226 Difference]: Without dead ends: 151 [2022-11-20 10:35:37,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:37,177 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:37,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 24 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-20 10:35:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-20 10:35:37,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.02) internal successors, (153), 150 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:37,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 153 transitions. [2022-11-20 10:35:37,190 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 153 transitions. Word has length 149 [2022-11-20 10:35:37,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:37,191 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 153 transitions. [2022-11-20 10:35:37,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 153 transitions. [2022-11-20 10:35:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 10:35:37,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:37,201 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:37,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:35:37,202 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:37,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash -160612364, now seen corresponding path program 1 times [2022-11-20 10:35:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:37,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949278424] [2022-11-20 10:35:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:35:40,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:35:40,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949278424] [2022-11-20 10:35:40,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949278424] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:35:40,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853204574] [2022-11-20 10:35:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:40,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:40,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:40,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:35:40,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:35:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 10:35:41,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:41,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:35:41,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1903 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:35:45,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853204574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:45,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:35:45,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 10:35:45,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420536795] [2022-11-20 10:35:45,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:45,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 10:35:45,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:35:45,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 10:35:45,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 10:35:45,814 INFO L87 Difference]: Start difference. First operand 151 states and 153 transitions. Second operand has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:49,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:49,600 INFO L93 Difference]: Finished difference Result 303 states and 338 transitions. [2022-11-20 10:35:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-20 10:35:49,601 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2022-11-20 10:35:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:49,602 INFO L225 Difference]: With dead ends: 303 [2022-11-20 10:35:49,602 INFO L226 Difference]: Without dead ends: 279 [2022-11-20 10:35:49,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-11-20 10:35:49,611 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 699 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:49,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 82 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:35:49,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-20 10:35:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-11-20 10:35:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 1.0107913669064748) internal successors, (281), 278 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 281 transitions. [2022-11-20 10:35:49,626 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 281 transitions. Word has length 150 [2022-11-20 10:35:49,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:49,626 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 281 transitions. [2022-11-20 10:35:49,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:35:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 281 transitions. [2022-11-20 10:35:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-20 10:35:49,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:49,632 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:49,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:49,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:35:49,838 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:35:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash -893239180, now seen corresponding path program 2 times [2022-11-20 10:35:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:35:49,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350754614] [2022-11-20 10:35:49,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:49,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:35:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:36:00,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:00,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350754614] [2022-11-20 10:36:00,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350754614] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:36:00,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507557176] [2022-11-20 10:36:00,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:36:00,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:36:00,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:36:00,402 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:36:00,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:36:00,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:36:00,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:36:00,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-20 10:36:00,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:36:01,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:36:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:36:15,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507557176] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:36:15,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:36:15,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-11-20 10:36:15,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636285361] [2022-11-20 10:36:15,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:36:15,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-11-20 10:36:15,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-11-20 10:36:15,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-11-20 10:36:15,816 INFO L87 Difference]: Start difference. First operand 279 states and 281 transitions. Second operand has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:30,285 INFO L93 Difference]: Finished difference Result 559 states and 626 transitions. [2022-11-20 10:36:30,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2022-11-20 10:36:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2022-11-20 10:36:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:30,288 INFO L225 Difference]: With dead ends: 559 [2022-11-20 10:36:30,289 INFO L226 Difference]: Without dead ends: 535 [2022-11-20 10:36:30,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-11-20 10:36:30,299 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1340 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:30,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 145 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:36:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-20 10:36:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2022-11-20 10:36:30,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.0056179775280898) internal successors, (537), 534 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 537 transitions. [2022-11-20 10:36:30,322 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 537 transitions. Word has length 278 [2022-11-20 10:36:30,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:30,323 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 537 transitions. [2022-11-20 10:36:30,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,324 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 537 transitions. [2022-11-20 10:36:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-11-20 10:36:30,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:30,337 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:30,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:30,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 10:36:30,549 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 10:36:30,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:30,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1579925132, now seen corresponding path program 3 times [2022-11-20 10:36:30,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:30,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408485146] [2022-11-20 10:36:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:30,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:37:08,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:08,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408485146] [2022-11-20 10:37:08,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408485146] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:37:08,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305543814] [2022-11-20 10:37:08,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:37:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:08,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:37:08,735 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:37:08,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:37:08,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 10:37:08,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:08,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:37:08,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-11-20 10:37:09,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:09,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305543814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:09,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:37:09,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-11-20 10:37:09,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884284851] [2022-11-20 10:37:09,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:09,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:37:09,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:09,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:37:09,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16645, Invalid=50177, Unknown=0, NotChecked=0, Total=66822 [2022-11-20 10:37:09,305 INFO L87 Difference]: Start difference. First operand 535 states and 537 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:09,500 INFO L93 Difference]: Finished difference Result 535 states and 537 transitions. [2022-11-20 10:37:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:37:09,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 534 [2022-11-20 10:37:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:09,502 INFO L225 Difference]: With dead ends: 535 [2022-11-20 10:37:09,502 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:37:09,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=16649, Invalid=50691, Unknown=0, NotChecked=0, Total=67340 [2022-11-20 10:37:09,515 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:09,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 19 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:37:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:37:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:37:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:37:09,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 534 [2022-11-20 10:37:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:09,517 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:37:09,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:37:09,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:37:09,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-20 10:37:09,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-20 10:37:09,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-20 10:37:09,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-20 10:37:09,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-20 10:37:09,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-20 10:37:09,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:09,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:37:09,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:37:10,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-20 10:37:10,167 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 31 34) no Hoare annotation was computed. [2022-11-20 10:37:10,167 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2022-11-20 10:37:10,167 INFO L899 garLoopResultBuilder]: For program point L31-4(line 31) no Hoare annotation was computed. [2022-11-20 10:37:10,168 INFO L895 garLoopResultBuilder]: At program point L31-5(lines 31 34) the Hoare annotation is: (<= 0 (+ ~i~0 2147483648)) [2022-11-20 10:37:10,168 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 30) no Hoare annotation was computed. [2022-11-20 10:37:10,168 INFO L899 garLoopResultBuilder]: For program point L31-6(lines 31 34) no Hoare annotation was computed. [2022-11-20 10:37:10,168 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2022-11-20 10:37:10,169 INFO L899 garLoopResultBuilder]: For program point L27-4(line 27) no Hoare annotation was computed. [2022-11-20 10:37:10,169 INFO L895 garLoopResultBuilder]: At program point L27-5(lines 27 30) the Hoare annotation is: (<= 0 (+ ~i~0 2147483648)) [2022-11-20 10:37:10,169 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2022-11-20 10:37:10,170 INFO L899 garLoopResultBuilder]: For program point L27-6(lines 27 30) no Hoare annotation was computed. [2022-11-20 10:37:10,170 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-20 10:37:10,170 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-11-20 10:37:10,170 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 26) the Hoare annotation is: (or (<= 1 ~i~0) (= ~i~0 0)) [2022-11-20 10:37:10,170 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 26) no Hoare annotation was computed. [2022-11-20 10:37:10,171 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-20 10:37:10,171 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:37:10,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-20 10:37:10,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:37:10,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-20 10:37:10,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:37:10,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-20 10:37:10,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:37:10,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-20 10:37:10,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-20 10:37:10,173 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-11-20 10:37:10,173 INFO L895 garLoopResultBuilder]: At program point L14-2(lines 13 18) the Hoare annotation is: (and (<= 0 (+ ~i~0 2147483648)) (<= ~i~0 4999999)) [2022-11-20 10:37:10,173 INFO L902 garLoopResultBuilder]: At program point L35(lines 21 36) the Hoare annotation is: true [2022-11-20 10:37:10,177 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 10:37:10,180 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:37:10,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:37:10 BoogieIcfgContainer [2022-11-20 10:37:10,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:37:10,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:37:10,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:37:10,199 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:37:10,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:25" (3/4) ... [2022-11-20 10:37:10,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:37:10,216 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 10:37:10,216 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:37:10,216 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:37:10,216 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:37:10,269 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:37:10,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:37:10,270 INFO L158 Benchmark]: Toolchain (without parser) took 105670.49ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 99.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 661.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:10,271 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:10,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.42ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 88.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:37:10,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.87ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 86.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:10,273 INFO L158 Benchmark]: Boogie Preprocessor took 24.28ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 85.8MB in the end (delta: 970.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:37:10,274 INFO L158 Benchmark]: RCFGBuilder took 305.02ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 75.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:37:10,275 INFO L158 Benchmark]: TraceAbstraction took 104970.01ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 74.6MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 633.9MB. Max. memory is 16.1GB. [2022-11-20 10:37:10,275 INFO L158 Benchmark]: Witness Printer took 71.52ms. Allocated memory is still 2.1GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:37:10,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.42ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 88.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.87ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 86.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.28ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 85.8MB in the end (delta: 970.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.02ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 75.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 104970.01ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 74.6MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 633.9MB. Max. memory is 16.1GB. * Witness Printer took 71.52ms. Allocated memory is still 2.1GB. Free memory was 1.3GB in the beginning and 1.3GB 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 104.9s, OverallIterations: 15, TraceHistogramMax: 127, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2776 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2776 mSDsluCounter, 797 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 581 mSDsCounter, 315 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2106 IncrementalHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 315 mSolverCounterUnsat, 216 mSDtfsCounter, 2106 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2554 GetRequests, 1491 SyntacticMatches, 0 SemanticMatches, 1063 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59951 ImplicationChecksByTransitivity, 64.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=535occurred in iteration=14, InterpolantAutomatonStates: 543, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 82 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 140 NumberOfFragments, 27 HoareAnnotationTreeSize, 5 FomulaSimplifications, 3028 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 5 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 77.8s InterpolantComputationTime, 2736 NumberOfCodeBlocks, 2172 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3284 ConstructedInterpolants, 0 QuantifiedInterpolants, 7338 SizeOfPredicates, 124 NumberOfNonLiveVariables, 1943 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 36970/100030 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 6 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && i <= 4999999 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 10:37:10,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12c63f8f-09dc-49a3-b7f5-73910b509fb7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE