./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro --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 4fa401c700a21fa1f98a1481c8e8ba1555a45c0429555dc041a1c04ce1059991 --- 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-8393723 [2022-11-18 20:02:50,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:02:50,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:02:50,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:02:50,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:02:50,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:02:50,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:02:50,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:02:50,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:02:50,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:02:50,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:02:50,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:02:50,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:02:50,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:02:50,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:02:50,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:02:50,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:02:50,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:02:50,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:02:50,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:02:50,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:02:50,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:02:50,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:02:50,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:02:50,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:02:50,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:02:50,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:02:50,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:02:50,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:02:50,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:02:50,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:02:50,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:02:50,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:02:50,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:02:50,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:02:50,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:02:50,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:02:50,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:02:50,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:02:50,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:02:50,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:02:50,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:02:50,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:02:50,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:02:50,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:02:50,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:02:50,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:02:50,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:02:50,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:02:50,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:02:50,717 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:02:50,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:02:50,719 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:02:50,719 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:02:50,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:02:50,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:02:50,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:02:50,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:02:50,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:02:50,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:02:50,720 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:02:50,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:02:50,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:02:50,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:02:50,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:02:50,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:02:50,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:02:50,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:02:50,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:50,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:02:50,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:02:50,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:02:50,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:02:50,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:02:50,725 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:02:50,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:02:50,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:02:50,725 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_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fa401c700a21fa1f98a1481c8e8ba1555a45c0429555dc041a1c04ce1059991 [2022-11-18 20:02:51,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:02:51,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:02:51,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:02:51,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:02:51,055 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:02:51,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2022-11-18 20:02:51,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/data/f1aa80548/6fc6a7f1b4c5417a8f162a26ef8de37b/FLAG959a82d78 [2022-11-18 20:02:51,677 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:02:51,678 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2022-11-18 20:02:51,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/data/f1aa80548/6fc6a7f1b4c5417a8f162a26ef8de37b/FLAG959a82d78 [2022-11-18 20:02:52,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/data/f1aa80548/6fc6a7f1b4c5417a8f162a26ef8de37b [2022-11-18 20:02:52,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:02:52,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:02:52,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:52,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:02:52,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:02:52,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3360350a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52, skipping insertion in model container [2022-11-18 20:02:52,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:02:52,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:02:52,383 WARN L234 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_3b56ea0f-2614-483f-8203-c816f77377dd/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c[421,434] [2022-11-18 20:02:52,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:52,410 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:02:52,424 WARN L234 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_3b56ea0f-2614-483f-8203-c816f77377dd/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c[421,434] [2022-11-18 20:02:52,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:02:52,448 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:02:52,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52 WrapperNode [2022-11-18 20:02:52,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:02:52,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:52,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:02:52,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:02:52,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,489 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-18 20:02:52,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:02:52,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:02:52,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:02:52,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:02:52,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:02:52,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:02:52,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:02:52,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:02:52,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (1/1) ... [2022-11-18 20:02:52,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:02:52,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:52,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:02:52,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:02:52,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:02:52,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:02:52,605 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:02:52,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:02:52,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:02:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:02:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:02:52,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:02:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:02:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:02:52,697 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:02:52,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:02:52,894 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:02:52,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:02:52,900 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:02:52,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:52 BoogieIcfgContainer [2022-11-18 20:02:52,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:02:52,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:02:52,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:02:52,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:02:52,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:02:52" (1/3) ... [2022-11-18 20:02:52,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ed220a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:52, skipping insertion in model container [2022-11-18 20:02:52,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:02:52" (2/3) ... [2022-11-18 20:02:52,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ed220a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:02:52, skipping insertion in model container [2022-11-18 20:02:52,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:52" (3/3) ... [2022-11-18 20:02:52,912 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2022-11-18 20:02:52,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:02:52,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-18 20:02:52,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:02:52,996 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;@3c5c50da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:02:52,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 20:02:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 41 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:02:53,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:53,012 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:53,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:53,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash 134155656, now seen corresponding path program 1 times [2022-11-18 20:02:53,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:53,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303373220] [2022-11-18 20:02:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:53,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:53,146 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:53,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027497702] [2022-11-18 20:02:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:53,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:53,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:53,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:53,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:02:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:02:53,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:53,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:02:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:53,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303373220] [2022-11-18 20:02:53,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:53,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027497702] [2022-11-18 20:02:53,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027497702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:53,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:53,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:53,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54120482] [2022-11-18 20:02:53,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:53,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:02:53,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:02:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:02:53,411 INFO L87 Difference]: Start difference. First operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 41 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:53,450 INFO L93 Difference]: Finished difference Result 85 states and 106 transitions. [2022-11-18 20:02:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:02:53,453 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-18 20:02:53,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:53,470 INFO L225 Difference]: With dead ends: 85 [2022-11-18 20:02:53,470 INFO L226 Difference]: Without dead ends: 39 [2022-11-18 20:02:53,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:02:53,481 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:53,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:02:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-18 20:02:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-18 20:02:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.625) internal successors, (39), 36 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-18 20:02:53,541 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2022-11-18 20:02:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:53,543 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-18 20:02:53,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:53,544 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-18 20:02:53,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:02:53,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:53,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:53,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:53,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 20:02:53,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:53,754 INFO L85 PathProgramCache]: Analyzing trace with hash 134155284, now seen corresponding path program 1 times [2022-11-18 20:02:53,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:53,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482587243] [2022-11-18 20:02:53,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:53,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:53,768 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:53,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742291389] [2022-11-18 20:02:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:53,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:53,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:53,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:02:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:53,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:02:53,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:53,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:02:53,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:53,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482587243] [2022-11-18 20:02:53,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:53,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742291389] [2022-11-18 20:02:53,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742291389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:53,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:53,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:53,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686176979] [2022-11-18 20:02:53,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:53,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:53,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:53,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:53,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:53,938 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:54,033 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-11-18 20:02:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:54,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-18 20:02:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:54,035 INFO L225 Difference]: With dead ends: 68 [2022-11-18 20:02:54,035 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 20:02:54,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:54,037 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:54,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 44 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:02:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 20:02:54,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2022-11-18 20:02:54,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 40 states have (on average 1.65) internal successors, (66), 51 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2022-11-18 20:02:54,047 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 15 [2022-11-18 20:02:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:54,048 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2022-11-18 20:02:54,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2022-11-18 20:02:54,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:02:54,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:54,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:54,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:54,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:54,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:54,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:54,256 INFO L85 PathProgramCache]: Analyzing trace with hash 134155335, now seen corresponding path program 1 times [2022-11-18 20:02:54,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:54,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242924594] [2022-11-18 20:02:54,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:54,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:54,267 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:54,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747493342] [2022-11-18 20:02:54,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:54,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:54,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:54,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:54,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:02:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:54,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:02:54,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:54,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:02:54,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:54,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242924594] [2022-11-18 20:02:54,412 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:54,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747493342] [2022-11-18 20:02:54,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747493342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:54,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:54,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:02:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606823025] [2022-11-18 20:02:54,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:54,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:02:54,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:54,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:02:54,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:54,416 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:54,574 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2022-11-18 20:02:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:02:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-18 20:02:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:54,576 INFO L225 Difference]: With dead ends: 90 [2022-11-18 20:02:54,576 INFO L226 Difference]: Without dead ends: 86 [2022-11-18 20:02:54,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:54,577 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 69 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:54,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 41 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:02:54,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-18 20:02:54,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 65. [2022-11-18 20:02:54,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.6) internal successors, (80), 61 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:54,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-18 20:02:54,587 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 15 [2022-11-18 20:02:54,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:54,588 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-18 20:02:54,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-18 20:02:54,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 20:02:54,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:54,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:54,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:54,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:54,790 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:54,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash -136153425, now seen corresponding path program 1 times [2022-11-18 20:02:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:54,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927719876] [2022-11-18 20:02:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:54,802 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:54,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974577739] [2022-11-18 20:02:54,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:54,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:54,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:54,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:54,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:02:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:54,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:02:54,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:54,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:02:54,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:54,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927719876] [2022-11-18 20:02:54,891 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:54,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974577739] [2022-11-18 20:02:54,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974577739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:54,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:54,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:02:54,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376668165] [2022-11-18 20:02:54,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:54,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:02:54,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:02:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:54,894 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:54,932 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2022-11-18 20:02:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-18 20:02:54,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:54,934 INFO L225 Difference]: With dead ends: 65 [2022-11-18 20:02:54,934 INFO L226 Difference]: Without dead ends: 63 [2022-11-18 20:02:54,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:02:54,936 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 26 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:54,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:02:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-18 20:02:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-18 20:02:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2022-11-18 20:02:54,946 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 16 [2022-11-18 20:02:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:54,946 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2022-11-18 20:02:54,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2022-11-18 20:02:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 20:02:54,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:54,948 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:54,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:55,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:55,154 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:55,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash -136151855, now seen corresponding path program 1 times [2022-11-18 20:02:55,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:55,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165544787] [2022-11-18 20:02:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:55,163 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:55,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545386913] [2022-11-18 20:02:55,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:55,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:55,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:55,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:55,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:02:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:55,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:02:55,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:55,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:02:55,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165544787] [2022-11-18 20:02:55,264 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:55,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545386913] [2022-11-18 20:02:55,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545386913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:02:55,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:02:55,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:02:55,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847799353] [2022-11-18 20:02:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:02:55,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:02:55,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:55,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:02:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:55,267 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:55,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:55,319 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2022-11-18 20:02:55,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:02:55,320 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-18 20:02:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:55,321 INFO L225 Difference]: With dead ends: 63 [2022-11-18 20:02:55,321 INFO L226 Difference]: Without dead ends: 59 [2022-11-18 20:02:55,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:55,322 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:55,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:02:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-18 20:02:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-18 20:02:55,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.36) internal successors, (68), 55 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2022-11-18 20:02:55,335 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 16 [2022-11-18 20:02:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:55,335 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2022-11-18 20:02:55,335 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2022-11-18 20:02:55,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:02:55,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:55,336 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:55,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:55,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:55,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1697513813, now seen corresponding path program 1 times [2022-11-18 20:02:55,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:55,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400171562] [2022-11-18 20:02:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:55,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:55,546 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:55,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086045054] [2022-11-18 20:02:55,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:55,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:55,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:55,548 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:55,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:02:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:55,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:02:55,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:55,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:55,705 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:55,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:55,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400171562] [2022-11-18 20:02:55,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:55,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086045054] [2022-11-18 20:02:55,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086045054] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:55,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:55,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-18 20:02:55,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671791413] [2022-11-18 20:02:55,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:55,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:55,708 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:02:55,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:55,844 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2022-11-18 20:02:55,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:02:55,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2022-11-18 20:02:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:55,863 INFO L225 Difference]: With dead ends: 135 [2022-11-18 20:02:55,863 INFO L226 Difference]: Without dead ends: 133 [2022-11-18 20:02:55,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:55,864 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 194 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:55,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 75 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:02:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-18 20:02:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 113. [2022-11-18 20:02:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 104 states have (on average 1.375) internal successors, (143), 109 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2022-11-18 20:02:55,877 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 19 [2022-11-18 20:02:55,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:55,877 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2022-11-18 20:02:55,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:02:55,877 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2022-11-18 20:02:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:02:55,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:55,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:55,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:56,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:56,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:56,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:56,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1697513762, now seen corresponding path program 1 times [2022-11-18 20:02:56,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:56,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27898517] [2022-11-18 20:02:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:56,120 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:56,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739265] [2022-11-18 20:02:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:56,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:56,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:56,135 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:56,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:02:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:56,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:02:56,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:56,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:56,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:56,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27898517] [2022-11-18 20:02:56,260 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:56,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739265] [2022-11-18 20:02:56,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739265] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:56,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:56,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-11-18 20:02:56,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535575565] [2022-11-18 20:02:56,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:56,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:02:56,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:56,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:02:56,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:02:56,262 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:56,388 INFO L93 Difference]: Finished difference Result 323 states and 422 transitions. [2022-11-18 20:02:56,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:02:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-11-18 20:02:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:56,393 INFO L225 Difference]: With dead ends: 323 [2022-11-18 20:02:56,393 INFO L226 Difference]: Without dead ends: 231 [2022-11-18 20:02:56,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:02:56,396 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:56,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 94 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:02:56,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-18 20:02:56,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 190. [2022-11-18 20:02:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 181 states have (on average 1.3370165745856353) internal successors, (242), 186 states have internal predecessors, (242), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 246 transitions. [2022-11-18 20:02:56,440 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 246 transitions. Word has length 19 [2022-11-18 20:02:56,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:56,440 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 246 transitions. [2022-11-18 20:02:56,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 246 transitions. [2022-11-18 20:02:56,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:02:56,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:56,442 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:56,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:02:56,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:02:56,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:56,648 INFO L85 PathProgramCache]: Analyzing trace with hash 367063445, now seen corresponding path program 1 times [2022-11-18 20:02:56,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:56,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386757808] [2022-11-18 20:02:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:56,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:56,658 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:56,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343071890] [2022-11-18 20:02:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:56,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:56,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:56,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:56,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:02:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:56,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:02:56,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:56,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:56,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:56,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386757808] [2022-11-18 20:02:56,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:56,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343071890] [2022-11-18 20:02:56,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343071890] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:56,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:56,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-18 20:02:56,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637864535] [2022-11-18 20:02:56,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:56,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:02:56,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:02:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:02:56,862 INFO L87 Difference]: Start difference. First operand 190 states and 246 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:02:57,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:57,219 INFO L93 Difference]: Finished difference Result 250 states and 316 transitions. [2022-11-18 20:02:57,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:02:57,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2022-11-18 20:02:57,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:57,221 INFO L225 Difference]: With dead ends: 250 [2022-11-18 20:02:57,221 INFO L226 Difference]: Without dead ends: 246 [2022-11-18 20:02:57,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:02:57,223 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 214 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:57,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 51 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:02:57,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-18 20:02:57,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 208. [2022-11-18 20:02:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 199 states have (on average 1.306532663316583) internal successors, (260), 204 states have internal predecessors, (260), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:57,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 264 transitions. [2022-11-18 20:02:57,263 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 264 transitions. Word has length 20 [2022-11-18 20:02:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:57,264 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 264 transitions. [2022-11-18 20:02:57,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:02:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 264 transitions. [2022-11-18 20:02:57,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:02:57,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:57,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:57,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:57,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:57,472 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:57,473 INFO L85 PathProgramCache]: Analyzing trace with hash -131527095, now seen corresponding path program 1 times [2022-11-18 20:02:57,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:57,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704009473] [2022-11-18 20:02:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:57,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:57,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:57,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285647424] [2022-11-18 20:02:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:57,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:57,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:57,488 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:57,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:02:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:57,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:02:57,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:57,616 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:57,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:02:57,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:57,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704009473] [2022-11-18 20:02:57,670 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:57,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285647424] [2022-11-18 20:02:57,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285647424] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:57,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:57,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-18 20:02:57,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316221556] [2022-11-18 20:02:57,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:57,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:02:57,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:57,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:02:57,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:02:57,673 INFO L87 Difference]: Start difference. First operand 208 states and 264 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:57,882 INFO L93 Difference]: Finished difference Result 652 states and 844 transitions. [2022-11-18 20:02:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:02:57,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-18 20:02:57,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:57,885 INFO L225 Difference]: With dead ends: 652 [2022-11-18 20:02:57,886 INFO L226 Difference]: Without dead ends: 650 [2022-11-18 20:02:57,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:02:57,887 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 162 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:57,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 95 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:02:57,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-18 20:02:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 490. [2022-11-18 20:02:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 481 states have (on average 1.3014553014553014) internal successors, (626), 486 states have internal predecessors, (626), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 630 transitions. [2022-11-18 20:02:57,924 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 630 transitions. Word has length 27 [2022-11-18 20:02:57,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:57,924 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 630 transitions. [2022-11-18 20:02:57,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:57,925 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 630 transitions. [2022-11-18 20:02:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:02:57,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:57,926 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:57,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:58,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:02:58,132 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:58,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash 143327600, now seen corresponding path program 2 times [2022-11-18 20:02:58,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:58,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168149717] [2022-11-18 20:02:58,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:58,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:58,146 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:58,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515541756] [2022-11-18 20:02:58,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:02:58,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:58,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:58,154 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:02:58,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:02:58,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:02:58,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:02:58,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-18 20:02:58,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-18 20:02:58,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:58,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168149717] [2022-11-18 20:02:58,316 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:58,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515541756] [2022-11-18 20:02:58,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515541756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:58,317 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:58,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2022-11-18 20:02:58,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070808073] [2022-11-18 20:02:58,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:58,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:02:58,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:58,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:02:58,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:02:58,321 INFO L87 Difference]: Start difference. First operand 490 states and 630 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:58,419 INFO L93 Difference]: Finished difference Result 491 states and 631 transitions. [2022-11-18 20:02:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:02:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-11-18 20:02:58,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:58,424 INFO L225 Difference]: With dead ends: 491 [2022-11-18 20:02:58,424 INFO L226 Difference]: Without dead ends: 452 [2022-11-18 20:02:58,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:02:58,426 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 46 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:58,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:02:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-18 20:02:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 207. [2022-11-18 20:02:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 200 states have (on average 1.235) internal successors, (247), 203 states have internal predecessors, (247), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2022-11-18 20:02:58,447 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 31 [2022-11-18 20:02:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:58,449 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2022-11-18 20:02:58,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:02:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2022-11-18 20:02:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 20:02:58,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:58,453 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:58,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:58,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:58,669 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash -337560089, now seen corresponding path program 1 times [2022-11-18 20:02:58,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:58,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865319974] [2022-11-18 20:02:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:58,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:58,687 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:58,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113280597] [2022-11-18 20:02:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:58,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:58,689 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:58,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:02:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:02:58,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:02:58,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 20:02:58,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 20:02:58,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:58,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865319974] [2022-11-18 20:02:58,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:58,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113280597] [2022-11-18 20:02:58,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113280597] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:58,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:58,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-18 20:02:58,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173506988] [2022-11-18 20:02:58,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:58,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:02:58,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:58,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:02:58,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:02:58,891 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:02:59,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:02:59,257 INFO L93 Difference]: Finished difference Result 566 states and 709 transitions. [2022-11-18 20:02:59,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:02:59,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-11-18 20:02:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:02:59,260 INFO L225 Difference]: With dead ends: 566 [2022-11-18 20:02:59,260 INFO L226 Difference]: Without dead ends: 564 [2022-11-18 20:02:59,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=180, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:02:59,262 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 409 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:02:59,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 54 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:02:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-11-18 20:02:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 295. [2022-11-18 20:02:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 288 states have (on average 1.2430555555555556) internal successors, (358), 291 states have internal predecessors, (358), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:02:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 362 transitions. [2022-11-18 20:02:59,302 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 362 transitions. Word has length 33 [2022-11-18 20:02:59,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:02:59,302 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 362 transitions. [2022-11-18 20:02:59,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:02:59,303 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 362 transitions. [2022-11-18 20:02:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 20:02:59,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:02:59,304 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:02:59,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:02:59,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:59,509 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:02:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:02:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash -424045652, now seen corresponding path program 2 times [2022-11-18 20:02:59,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:02:59,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871680909] [2022-11-18 20:02:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:02:59,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:02:59,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:02:59,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534970456] [2022-11-18 20:02:59,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:02:59,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:02:59,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:02:59,522 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:02:59,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:02:59,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:02:59,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:02:59,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:02:59,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:02:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 20:02:59,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:02:59,868 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-18 20:02:59,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:02:59,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871680909] [2022-11-18 20:02:59,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:02:59,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534970456] [2022-11-18 20:02:59,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534970456] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:02:59,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:02:59,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-18 20:02:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49013715] [2022-11-18 20:02:59,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:02:59,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:02:59,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:02:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:02:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:02:59,872 INFO L87 Difference]: Start difference. First operand 295 states and 362 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:03:00,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:00,633 INFO L93 Difference]: Finished difference Result 816 states and 998 transitions. [2022-11-18 20:03:00,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:03:00,633 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-18 20:03:00,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:00,636 INFO L225 Difference]: With dead ends: 816 [2022-11-18 20:03:00,636 INFO L226 Difference]: Without dead ends: 559 [2022-11-18 20:03:00,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=828, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:03:00,638 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 484 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:00,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 67 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:03:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-18 20:03:00,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 274. [2022-11-18 20:03:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 267 states have (on average 1.1835205992509363) internal successors, (316), 270 states have internal predecessors, (316), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:03:00,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2022-11-18 20:03:00,671 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 34 [2022-11-18 20:03:00,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:00,672 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2022-11-18 20:03:00,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:03:00,672 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2022-11-18 20:03:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:03:00,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:00,674 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:00,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:00,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:03:00,879 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:03:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:00,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1312474388, now seen corresponding path program 3 times [2022-11-18 20:03:00,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:00,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553939601] [2022-11-18 20:03:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:00,893 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:03:00,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525585814] [2022-11-18 20:03:00,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:03:00,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:00,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:00,895 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:00,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:03:00,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 20:03:00,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:03:00,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:03:00,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 20:03:01,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:03:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 20:03:01,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553939601] [2022-11-18 20:03:01,206 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:03:01,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525585814] [2022-11-18 20:03:01,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525585814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:03:01,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:03:01,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-18 20:03:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817161547] [2022-11-18 20:03:01,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:03:01,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:03:01,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:01,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:03:01,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:03:01,209 INFO L87 Difference]: Start difference. First operand 274 states and 320 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:03:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:01,465 INFO L93 Difference]: Finished difference Result 571 states and 661 transitions. [2022-11-18 20:03:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:03:01,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2022-11-18 20:03:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:01,468 INFO L225 Difference]: With dead ends: 571 [2022-11-18 20:03:01,468 INFO L226 Difference]: Without dead ends: 567 [2022-11-18 20:03:01,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:03:01,470 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 89 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:01,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 47 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:03:01,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-18 20:03:01,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 373. [2022-11-18 20:03:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 366 states have (on average 1.1530054644808743) internal successors, (422), 369 states have internal predecessors, (422), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:03:01,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 426 transitions. [2022-11-18 20:03:01,515 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 426 transitions. Word has length 44 [2022-11-18 20:03:01,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:01,516 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 426 transitions. [2022-11-18 20:03:01,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:03:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 426 transitions. [2022-11-18 20:03:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-18 20:03:01,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:01,517 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:01,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:01,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:03:01,724 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:03:01,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:01,724 INFO L85 PathProgramCache]: Analyzing trace with hash -888680217, now seen corresponding path program 4 times [2022-11-18 20:03:01,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:01,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784441450] [2022-11-18 20:03:01,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:01,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:01,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:03:01,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110369743] [2022-11-18 20:03:01,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:03:01,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:01,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:01,744 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:01,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:03:01,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:03:01,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:03:01,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:03:01,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 20:03:01,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:03:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 20:03:02,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:02,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784441450] [2022-11-18 20:03:02,130 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:03:02,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110369743] [2022-11-18 20:03:02,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110369743] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:03:02,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:03:02,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-18 20:03:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569087674] [2022-11-18 20:03:02,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:03:02,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:03:02,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:03:02,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:03:02,132 INFO L87 Difference]: Start difference. First operand 373 states and 426 transitions. Second operand has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:03:03,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:03,157 INFO L93 Difference]: Finished difference Result 1538 states and 1780 transitions. [2022-11-18 20:03:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-18 20:03:03,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2022-11-18 20:03:03,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:03,163 INFO L225 Difference]: With dead ends: 1538 [2022-11-18 20:03:03,163 INFO L226 Difference]: Without dead ends: 1536 [2022-11-18 20:03:03,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=532, Invalid=874, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 20:03:03,165 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1321 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:03,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 61 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:03:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-11-18 20:03:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 722. [2022-11-18 20:03:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 715 states have (on average 1.172027972027972) internal successors, (838), 718 states have internal predecessors, (838), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:03:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 842 transitions. [2022-11-18 20:03:03,264 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 842 transitions. Word has length 63 [2022-11-18 20:03:03,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:03,266 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 842 transitions. [2022-11-18 20:03:03,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:03:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 842 transitions. [2022-11-18 20:03:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-18 20:03:03,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:03,269 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:03,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:03,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:03:03,475 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:03:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1380788791, now seen corresponding path program 1 times [2022-11-18 20:03:03,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:03,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698916171] [2022-11-18 20:03:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:03,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:03,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:03:03,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462004438] [2022-11-18 20:03:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:03,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:03,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:03,501 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:03,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:03:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:03,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:03:03,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 184 proven. 57 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-18 20:03:03,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:03:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 159 proven. 82 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-18 20:03:03,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:03,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698916171] [2022-11-18 20:03:03,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:03:03,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462004438] [2022-11-18 20:03:03,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462004438] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:03:03,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:03:03,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-18 20:03:03,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784678393] [2022-11-18 20:03:03,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:03:03,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:03:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:03:03,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:03:03,837 INFO L87 Difference]: Start difference. First operand 722 states and 842 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:03:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:04,223 INFO L93 Difference]: Finished difference Result 932 states and 1065 transitions. [2022-11-18 20:03:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:03:04,224 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2022-11-18 20:03:04,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:04,227 INFO L225 Difference]: With dead ends: 932 [2022-11-18 20:03:04,227 INFO L226 Difference]: Without dead ends: 718 [2022-11-18 20:03:04,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:03:04,231 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 87 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:04,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 177 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:03:04,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-11-18 20:03:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 684. [2022-11-18 20:03:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 677 states have (on average 1.1432791728212703) internal successors, (774), 680 states have internal predecessors, (774), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:03:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 778 transitions. [2022-11-18 20:03:04,309 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 778 transitions. Word has length 75 [2022-11-18 20:03:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:04,310 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 778 transitions. [2022-11-18 20:03:04,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:03:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 778 transitions. [2022-11-18 20:03:04,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:03:04,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:04,312 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:04,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:04,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:03:04,518 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:03:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash 641176167, now seen corresponding path program 5 times [2022-11-18 20:03:04,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:04,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906856000] [2022-11-18 20:03:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:04,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:04,533 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:03:04,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391396730] [2022-11-18 20:03:04,533 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:03:04,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:04,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:04,535 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:04,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 20:03:04,846 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-18 20:03:04,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:03:04,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:03:04,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 225 proven. 122 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-18 20:03:05,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:03:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 173 proven. 174 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-18 20:03:05,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:05,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906856000] [2022-11-18 20:03:05,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:03:05,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391396730] [2022-11-18 20:03:05,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391396730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:03:05,200 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:03:05,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-18 20:03:05,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464691756] [2022-11-18 20:03:05,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:03:05,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:03:05,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:03:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:03:05,202 INFO L87 Difference]: Start difference. First operand 684 states and 778 transitions. Second operand has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:03:05,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:05,689 INFO L93 Difference]: Finished difference Result 1763 states and 1974 transitions. [2022-11-18 20:03:05,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:03:05,690 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2022-11-18 20:03:05,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:05,694 INFO L225 Difference]: With dead ends: 1763 [2022-11-18 20:03:05,694 INFO L226 Difference]: Without dead ends: 1124 [2022-11-18 20:03:05,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 146 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:03:05,697 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 133 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:05,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 180 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:03:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-11-18 20:03:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1000. [2022-11-18 20:03:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 993 states have (on average 1.108761329305136) internal successors, (1101), 996 states have internal predecessors, (1101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:03:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1105 transitions. [2022-11-18 20:03:05,822 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1105 transitions. Word has length 83 [2022-11-18 20:03:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:05,822 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1105 transitions. [2022-11-18 20:03:05,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:03:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1105 transitions. [2022-11-18 20:03:05,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:03:05,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:05,824 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:05,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:06,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:03:06,032 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-18 20:03:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:06,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1067011381, now seen corresponding path program 6 times [2022-11-18 20:03:06,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:06,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860203393] [2022-11-18 20:03:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:06,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:06,052 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:03:06,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489225578] [2022-11-18 20:03:06,052 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:03:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:06,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:06,054 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:06,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:03:06,142 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-18 20:03:06,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:03:06,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 20:03:06,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-18 20:03:06,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:03:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-18 20:03:06,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:06,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860203393] [2022-11-18 20:03:06,874 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:03:06,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489225578] [2022-11-18 20:03:06,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489225578] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:03:06,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:03:06,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-18 20:03:06,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130494676] [2022-11-18 20:03:06,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:03:06,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:03:06,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:06,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:03:06,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:03:06,877 INFO L87 Difference]: Start difference. First operand 1000 states and 1105 transitions. Second operand has 15 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:03:07,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:07,218 INFO L93 Difference]: Finished difference Result 1000 states and 1105 transitions. [2022-11-18 20:03:07,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:03:07,219 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 93 [2022-11-18 20:03:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:07,220 INFO L225 Difference]: With dead ends: 1000 [2022-11-18 20:03:07,220 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:03:07,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:03:07,222 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 134 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:07,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 41 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:03:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:03:07,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:03:07,223 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) [2022-11-18 20:03:07,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:03:07,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2022-11-18 20:03:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:07,224 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:03:07,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:03:07,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:03:07,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:03:07,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-18 20:03:07,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-18 20:03:07,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-18 20:03:07,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-18 20:03:07,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-18 20:03:07,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-18 20:03:07,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-18 20:03:07,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-18 20:03:07,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-18 20:03:07,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-18 20:03:07,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-18 20:03:07,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-18 20:03:07,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:07,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:03:07,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:03:21,367 WARN L233 SmtUtils]: Spent 13.92s on a formula simplification. DAG size of input: 450 DAG size of output: 404 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:03:47,867 WARN L233 SmtUtils]: Spent 22.90s on a formula simplification. DAG size of input: 227 DAG size of output: 220 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:04:15,036 WARN L233 SmtUtils]: Spent 27.16s on a formula simplification. DAG size of input: 457 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:04:25,510 INFO L895 garLoopResultBuilder]: At program point L31(line 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~s~0#1| 2147483647) (<= |ULTIMATE.start_main_~q~0#1| 2147483647) (<= |ULTIMATE.start_main_~j~0#1| 0)) [2022-11-18 20:04:25,510 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-11-18 20:04:25,510 INFO L895 garLoopResultBuilder]: At program point L31-1(line 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~q~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~s~0#1| 2147483647) (<= |ULTIMATE.start_main_~j~0#1| 0)) [2022-11-18 20:04:25,511 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-18 20:04:25,511 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 51) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~s~0#1| 3) (< (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483650) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) (<= |ULTIMATE.start_main_~j~0#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 .cse1 (<= |ULTIMATE.start_main_~q~0#1| 2147483647) (< (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~q~0#1|) 2147483650)) (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~s~0#1| 1499) (<= |ULTIMATE.start_main_~q~0#1| 999) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~i~0#1| 998)))) [2022-11-18 20:04:25,511 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2022-11-18 20:04:25,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-18 20:04:25,511 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-11-18 20:04:25,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-11-18 20:04:25,511 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 39) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~s~0#1| 2) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 2) (<= |ULTIMATE.start_main_~q~0#1| 2147483647)) (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~s~0#1| 1499) (<= |ULTIMATE.start_main_~q~0#1| 999) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~i~0#1| 998)))) [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2022-11-18 20:04:25,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-11-18 20:04:25,513 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 53) the Hoare annotation is: (let ((.cse11 (< |ULTIMATE.start_main_~i~0#1| 2147483648)) (.cse1 (not (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~s~0#1|))) (.cse4 (<= |ULTIMATE.start_main_~i~0#1| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse7 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~q~0#1| 2147483647)) (.cse9 (<= |ULTIMATE.start_main_~j~0#1| 0))) (let ((.cse0 (or (and .cse6 .cse11 .cse7 .cse1 .cse10 (< (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~q~0#1|) 2147483650)) (and .cse4 (< (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483650) .cse6 .cse7 .cse10 .cse9))) (.cse2 (<= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (<= |ULTIMATE.start_main_~s~0#1| 1499)) (.cse5 (<= |ULTIMATE.start_main_~q~0#1| 999)) (.cse8 (<= |ULTIMATE.start_main_~n~0#1| 1500))) (or (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 3) .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (<= |ULTIMATE.start_main_~s~0#1| 2) .cse9) (and (<= |ULTIMATE.start_main_~s~0#1| 0) .cse6 .cse7 .cse10 .cse9) (and .cse2 .cse3 (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) .cse5 .cse6 .cse11 .cse7 .cse8 .cse1)))) [2022-11-18 20:04:25,514 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-18 20:04:25,514 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 53) no Hoare annotation was computed. [2022-11-18 20:04:25,514 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2022-11-18 20:04:25,514 INFO L895 garLoopResultBuilder]: At program point L9-2(lines 8 13) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~s~0#1| 1499) (<= |ULTIMATE.start_main_~q~0#1| 999) .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~i~0#1| 998) (<= |ULTIMATE.start_main_~j~0#1| 1498)) (and (<= |ULTIMATE.start_main_~s~0#1| 3) (< (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483650) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 2) (< (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~q~0#1|) 2147483649) (<= |ULTIMATE.start_main_~q~0#1| 2147483647)))) [2022-11-18 20:04:25,514 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-18 20:04:25,514 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-18 20:04:25,515 INFO L895 garLoopResultBuilder]: At program point L34-1(lines 32 41) the Hoare annotation is: (let ((.cse6 (<= |ULTIMATE.start_main_~j~0#1| 0)) (.cse0 (<= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (<= |ULTIMATE.start_main_~s~0#1| 1499)) (.cse2 (<= |ULTIMATE.start_main_~q~0#1| 999)) (.cse5 (<= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse3 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse8 (< |ULTIMATE.start_main_~i~0#1| 2147483648)) (.cse4 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse9 (not (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~s~0#1|))) (.cse7 (<= |ULTIMATE.start_main_~q~0#1| 2147483647))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6) (and (<= |ULTIMATE.start_main_~s~0#1| 0) .cse3 .cse4 .cse7 .cse6) (and .cse0 .cse1 (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) .cse2 .cse3 .cse8 .cse4 .cse5 .cse9) (and .cse3 .cse8 .cse4 (<= |ULTIMATE.start_main_~j~0#1| 2) .cse9 .cse7))) [2022-11-18 20:04:25,515 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 41) no Hoare annotation was computed. [2022-11-18 20:04:25,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-11-18 20:04:25,515 INFO L902 garLoopResultBuilder]: At program point L55(lines 17 57) the Hoare annotation is: true [2022-11-18 20:04:25,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-18 20:04:25,515 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-11-18 20:04:25,515 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-11-18 20:04:25,515 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-18 20:04:25,515 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-18 20:04:25,516 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-11-18 20:04:25,516 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-18 20:04:25,521 INFO L444 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:04:25,526 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:04:25,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:04:25 BoogieIcfgContainer [2022-11-18 20:04:25,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:04:25,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:04:25,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:04:25,572 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:04:25,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:02:52" (3/4) ... [2022-11-18 20:04:25,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:04:25,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-18 20:04:25,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 20:04:25,597 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:04:25,597 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:04:25,597 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:04:25,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:04:25,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:04:25,656 INFO L158 Benchmark]: Toolchain (without parser) took 93499.27ms. Allocated memory was 123.7MB in the beginning and 654.3MB in the end (delta: 530.6MB). Free memory was 90.5MB in the beginning and 389.4MB in the end (delta: -298.9MB). Peak memory consumption was 231.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,656 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:04:25,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.63ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 99.9MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.51ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 98.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,658 INFO L158 Benchmark]: Boogie Preprocessor took 28.11ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 96.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,658 INFO L158 Benchmark]: RCFGBuilder took 383.82ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 84.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,658 INFO L158 Benchmark]: TraceAbstraction took 92666.38ms. Allocated memory was 123.7MB in the beginning and 654.3MB in the end (delta: 530.6MB). Free memory was 83.4MB in the beginning and 392.5MB in the end (delta: -309.1MB). Peak memory consumption was 382.7MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,659 INFO L158 Benchmark]: Witness Printer took 83.58ms. Allocated memory is still 654.3MB. Free memory was 392.5MB in the beginning and 389.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:04:25,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.63ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 99.9MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.51ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 98.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.11ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 96.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.82ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 84.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 92666.38ms. Allocated memory was 123.7MB in the beginning and 654.3MB in the end (delta: 530.6MB). Free memory was 83.4MB in the beginning and 392.5MB in the end (delta: -309.1MB). Peak memory consumption was 382.7MB. Max. memory is 16.1GB. * Witness Printer took 83.58ms. Allocated memory is still 654.3MB. Free memory was 392.5MB in the beginning and 389.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 92.6s, OverallIterations: 17, TraceHistogramMax: 15, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 78.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3489 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3475 mSDsluCounter, 1159 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 765 mSDsCounter, 838 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2232 IncrementalHoareTripleChecker+Invalid, 3070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 838 mSolverCounterUnsat, 394 mSDtfsCounter, 2232 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1208 GetRequests, 1016 SyntacticMatches, 12 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1000occurred in iteration=16, InterpolantAutomatonStates: 164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 2256 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 426 NumberOfFragments, 495 HoareAnnotationTreeSize, 11 FomulaSimplifications, 111528 FormulaSimplificationTreeSizeReduction, 70.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1087499 FormulaSimplificationTreeSizeReductionInter, 7.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 618 NumberOfCodeBlocks, 513 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1130 ConstructedInterpolants, 0 QuantifiedInterpolants, 3831 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1784 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 29 InterpolantComputations, 5 PerfectInterpolantSequences, 1724/3212 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 12 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((((((s <= 3 && q + s < 2147483650) && i + s < 2147483649) && j <= 3) && i <= 2147483646) && 0 <= j) && 0 <= i) && q <= 2147483647) && j + q < 2147483650) || (((((((m <= 1000 && s <= 1499) && q <= 999) && i + j <= 2147483647) && 0 <= j) && 0 <= i) && n <= 1500) && i <= 998) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((m <= 1000 && s <= 1499) && i <= 0) && q <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 0) || ((((s <= 0 && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) || ((((((((m <= 1000 && s <= 1499) && i + s < 2147483649) && q <= 999) && 0 <= j) && i < 2147483648) && 0 <= i) && n <= 1500) && !(j < s))) || (((((0 <= j && i < 2147483648) && 0 <= i) && j <= 2) && !(j < s)) && q <= 2147483647) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((((((((0 <= j && i < 2147483648) && 0 <= i) && !(j < s)) && q <= 2147483647) && j + q < 2147483650) || (((((i <= 0 && q + s < 2147483650) && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) && j <= 3) && !(j < s)) || (((((((m <= 1000 && s <= 1499) && i <= 0) && q <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 0)) || ((((((((0 <= j && i < 2147483648) && 0 <= i) && !(j < s)) && q <= 2147483647) && j + q < 2147483650) || (((((i <= 0 && q + s < 2147483650) && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) && s <= 2) && j <= 0)) || ((((s <= 0 && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) || ((((((((m <= 1000 && s <= 1499) && i + s < 2147483649) && q <= 999) && 0 <= j) && i < 2147483648) && 0 <= i) && n <= 1500) && !(j < s)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: (((((((m <= 1000 && s <= 1499) && q <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && i <= 998) && j <= 1498) || (((((((((s <= 3 && q + s < 2147483650) && i + s < 2147483649) && i <= 2147483646) && i + j <= 2147483647) && 0 <= j) && 0 <= i) && j <= 2) && j + q < 2147483649) && q <= 2147483647) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((s <= 2 && i <= 2147483646) && 0 <= j) && 0 <= i) && j <= 2) && q <= 2147483647) || (((((((m <= 1000 && s <= 1499) && q <= 999) && i + j <= 2147483647) && 0 <= j) && 0 <= i) && n <= 1500) && i <= 998) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:04:25,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b56ea0f-2614-483f-8203-c816f77377dd/bin/uautomizer-TMbwUNV5ro/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