./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2c85aee86c4b142223e11d6ae03fc30f95f303d54efdd7315c1aab75b140c6a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:29:41,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:29:41,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:29:41,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:29:41,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:29:41,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:29:41,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:29:41,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:29:41,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:29:41,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:29:41,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:29:41,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:29:41,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:29:41,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:29:41,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:29:41,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:29:41,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:29:41,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:29:41,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:29:41,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:29:41,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:29:41,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:29:41,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:29:41,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:29:41,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:29:41,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:29:41,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:29:41,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:29:41,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:29:41,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:29:41,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:29:41,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:29:41,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:29:41,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:29:41,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:29:41,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:29:41,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:29:41,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:29:41,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:29:41,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:29:41,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:29:41,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:29:41,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:29:41,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:29:41,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:29:41,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:29:41,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:29:41,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:29:41,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:29:41,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:29:41,611 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:29:41,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:29:41,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:29:41,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:29:41,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:29:41,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:29:41,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:29:41,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:29:41,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:29:41,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:29:41,615 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:29:41,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:29:41,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:29:41,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:29:41,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:29:41,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:29:41,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:29:41,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:29:41,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:29:41,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:29:41,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:29:41,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:29:41,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:29:41,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:29:41,620 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:29:41,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:29:41,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:29:41,621 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_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2c85aee86c4b142223e11d6ae03fc30f95f303d54efdd7315c1aab75b140c6a [2022-11-20 12:29:41,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:29:41,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:29:41,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:29:41,974 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:29:41,975 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:29:41,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2022-11-20 12:29:45,184 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:29:45,392 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:29:45,393 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2022-11-20 12:29:45,398 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/data/a7403a0ca/17dd123c36f54a5ca8a2b48205c99a88/FLAGd821d0862 [2022-11-20 12:29:45,413 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/data/a7403a0ca/17dd123c36f54a5ca8a2b48205c99a88 [2022-11-20 12:29:45,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:29:45,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:29:45,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:29:45,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:29:45,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:29:45,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28704e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45, skipping insertion in model container [2022-11-20 12:29:45,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:29:45,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:29:45,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/sv-benchmarks/c/recursive-simple/sum_2x3-1.c[479,492] [2022-11-20 12:29:45,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:29:45,588 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:29:45,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/sv-benchmarks/c/recursive-simple/sum_2x3-1.c[479,492] [2022-11-20 12:29:45,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:29:45,618 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:29:45,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45 WrapperNode [2022-11-20 12:29:45,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:29:45,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:29:45,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:29:45,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:29:45,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,651 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-20 12:29:45,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:29:45,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:29:45,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:29:45,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:29:45,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,669 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:29:45,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:29:45,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:29:45,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:29:45,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (1/1) ... [2022-11-20 12:29:45,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:29:45,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:45,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:29:45,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:29:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:29:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:29:45,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:29:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-20 12:29:45,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-20 12:29:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:29:45,830 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:29:45,832 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:29:45,978 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:29:45,986 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:29:45,986 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:29:45,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:29:45 BoogieIcfgContainer [2022-11-20 12:29:45,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:29:45,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:29:45,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:29:45,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:29:45,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:29:45" (1/3) ... [2022-11-20 12:29:45,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af55dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:29:45, skipping insertion in model container [2022-11-20 12:29:45,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:45" (2/3) ... [2022-11-20 12:29:45,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af55dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:29:45, skipping insertion in model container [2022-11-20 12:29:45,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:29:45" (3/3) ... [2022-11-20 12:29:45,999 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_2x3-1.c [2022-11-20 12:29:46,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:29:46,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 12:29:46,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:29:46,136 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;@3667251a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:29:46,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 12:29:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:29:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 12:29:46,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:46,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:29:46,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:46,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-11-20 12:29:46,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:46,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672722826] [2022-11-20 12:29:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:46,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:46,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:46,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672722826] [2022-11-20 12:29:46,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672722826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:46,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:46,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:46,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459354276] [2022-11-20 12:29:46,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:29:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:29:46,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:29:46,495 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:46,633 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2022-11-20 12:29:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:29:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 12:29:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:46,656 INFO L225 Difference]: With dead ends: 61 [2022-11-20 12:29:46,657 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 12:29:46,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:46,663 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 28 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:46,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 74 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:29:46,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 12:29:46,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-11-20 12:29:46,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.434782608695652) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:29:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-11-20 12:29:46,705 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 6 [2022-11-20 12:29:46,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:46,706 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-20 12:29:46,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-11-20 12:29:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:29:46,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:46,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:46,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:29:46,708 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1102469906, now seen corresponding path program 1 times [2022-11-20 12:29:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:46,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667619800] [2022-11-20 12:29:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:46,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:46,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667619800] [2022-11-20 12:29:46,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667619800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:46,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:46,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:29:46,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097309378] [2022-11-20 12:29:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:46,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:29:46,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:46,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:29:46,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:29:46,799 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:46,902 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2022-11-20 12:29:46,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:29:46,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 12:29:46,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:46,904 INFO L225 Difference]: With dead ends: 38 [2022-11-20 12:29:46,904 INFO L226 Difference]: Without dead ends: 36 [2022-11-20 12:29:46,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:46,906 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:46,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 72 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:29:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-20 12:29:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-20 12:29:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:29:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-11-20 12:29:46,914 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 8 [2022-11-20 12:29:46,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:46,915 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-11-20 12:29:46,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-11-20 12:29:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:29:46,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:46,916 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:46,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:29:46,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:46,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:46,918 INFO L85 PathProgramCache]: Analyzing trace with hash -881410885, now seen corresponding path program 1 times [2022-11-20 12:29:46,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:46,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781821418] [2022-11-20 12:29:46,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:46,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:47,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:47,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781821418] [2022-11-20 12:29:47,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781821418] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:47,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489650909] [2022-11-20 12:29:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:47,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:47,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:47,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:47,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:29:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:47,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:29:47,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:47,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:29:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:47,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489650909] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:29:47,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:29:47,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-20 12:29:47,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442969094] [2022-11-20 12:29:47,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:29:47,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:29:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:29:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:29:47,495 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:47,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:47,812 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2022-11-20 12:29:47,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:29:47,813 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 12:29:47,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:47,820 INFO L225 Difference]: With dead ends: 64 [2022-11-20 12:29:47,820 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 12:29:47,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:29:47,827 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 83 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:47,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 138 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:29:47,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 12:29:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2022-11-20 12:29:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 35 states have internal predecessors, (38), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:29:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-11-20 12:29:47,860 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 13 [2022-11-20 12:29:47,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:47,862 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-11-20 12:29:47,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-11-20 12:29:47,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:29:47,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:47,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:47,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:48,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:48,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:48,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:48,073 INFO L85 PathProgramCache]: Analyzing trace with hash -881410725, now seen corresponding path program 1 times [2022-11-20 12:29:48,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:48,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679995084] [2022-11-20 12:29:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:48,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:48,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:48,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679995084] [2022-11-20 12:29:48,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679995084] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:48,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729757630] [2022-11-20 12:29:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:48,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:48,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:48,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:48,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:29:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:48,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:29:48,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:48,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:48,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729757630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:48,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:29:48,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 12:29:48,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444399381] [2022-11-20 12:29:48,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:48,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:29:48,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:48,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:29:48,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:29:48,320 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:48,395 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-11-20 12:29:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:29:48,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 12:29:48,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:48,398 INFO L225 Difference]: With dead ends: 43 [2022-11-20 12:29:48,398 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 12:29:48,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:29:48,406 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 49 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:48,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 40 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:29:48,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 12:29:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-20 12:29:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.2) internal successors, (36), 34 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:29:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-20 12:29:48,424 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 13 [2022-11-20 12:29:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:48,424 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-20 12:29:48,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-11-20 12:29:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 12:29:48,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:48,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:48,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:48,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:48,632 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:48,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1323199908, now seen corresponding path program 1 times [2022-11-20 12:29:48,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:48,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362344965] [2022-11-20 12:29:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:48,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362344965] [2022-11-20 12:29:48,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362344965] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137629492] [2022-11-20 12:29:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:48,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:48,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:48,742 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:48,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:29:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:48,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:29:48,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:48,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:48,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137629492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:48,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:29:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 12:29:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348468579] [2022-11-20 12:29:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:48,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:29:48,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:29:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:29:48,878 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:48,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:48,956 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2022-11-20 12:29:48,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:29:48,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 12:29:48,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:48,957 INFO L225 Difference]: With dead ends: 42 [2022-11-20 12:29:48,958 INFO L226 Difference]: Without dead ends: 41 [2022-11-20 12:29:48,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:29:48,959 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 43 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:48,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 44 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:29:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-20 12:29:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-20 12:29:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 33 states have internal predecessors, (34), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:29:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2022-11-20 12:29:48,966 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2022-11-20 12:29:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:48,966 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2022-11-20 12:29:48,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2022-11-20 12:29:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 12:29:48,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:48,967 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:29:48,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:49,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:49,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:49,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:49,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1190657936, now seen corresponding path program 2 times [2022-11-20 12:29:49,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:49,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297068776] [2022-11-20 12:29:49,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:49,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:49,318 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:49,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:49,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297068776] [2022-11-20 12:29:49,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297068776] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:49,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96889062] [2022-11-20 12:29:49,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:29:49,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:49,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:49,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:49,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:29:49,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:29:49,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:29:49,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:29:49,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:49,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:29:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:49,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96889062] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:29:49,660 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:29:49,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2022-11-20 12:29:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450345385] [2022-11-20 12:29:49,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:29:49,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 12:29:49,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:49,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 12:29:49,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2022-11-20 12:29:49,664 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 22 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 15 states have internal predecessors, (42), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:50,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:50,099 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2022-11-20 12:29:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 12:29:50,100 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 15 states have internal predecessors, (42), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-20 12:29:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:50,103 INFO L225 Difference]: With dead ends: 89 [2022-11-20 12:29:50,104 INFO L226 Difference]: Without dead ends: 87 [2022-11-20 12:29:50,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=272, Invalid=988, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 12:29:50,106 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 246 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:50,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 126 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:29:50,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-20 12:29:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2022-11-20 12:29:50,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.15) internal successors, (69), 62 states have internal predecessors, (69), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 12:29:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2022-11-20 12:29:50,133 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 83 transitions. Word has length 20 [2022-11-20 12:29:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:50,133 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 83 transitions. [2022-11-20 12:29:50,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 15 states have internal predecessors, (42), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2022-11-20 12:29:50,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:29:50,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:50,135 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:50,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 12:29:50,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:50,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:50,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:50,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1744309704, now seen corresponding path program 1 times [2022-11-20 12:29:50,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:50,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042703509] [2022-11-20 12:29:50,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:50,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:50,472 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:50,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:50,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042703509] [2022-11-20 12:29:50,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042703509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:50,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123354167] [2022-11-20 12:29:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:50,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:50,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:50,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:29:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:50,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:29:50,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:50,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:50,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123354167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:50,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:29:50,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 14 [2022-11-20 12:29:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686487101] [2022-11-20 12:29:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:50,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:29:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:50,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:29:50,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:29:50,711 INFO L87 Difference]: Start difference. First operand 76 states and 83 transitions. Second operand has 10 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:50,902 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2022-11-20 12:29:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:29:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 12:29:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:50,908 INFO L225 Difference]: With dead ends: 84 [2022-11-20 12:29:50,908 INFO L226 Difference]: Without dead ends: 83 [2022-11-20 12:29:50,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:29:50,910 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 70 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:50,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 51 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:29:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-20 12:29:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2022-11-20 12:29:50,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 61 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 12:29:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2022-11-20 12:29:50,932 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 21 [2022-11-20 12:29:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:50,932 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2022-11-20 12:29:50,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2022-11-20 12:29:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 12:29:50,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:50,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:50,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:51,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:51,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash 339491756, now seen corresponding path program 1 times [2022-11-20 12:29:51,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:51,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764006904] [2022-11-20 12:29:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:51,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:29:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:29:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:29:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 12:29:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:51,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764006904] [2022-11-20 12:29:51,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764006904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:51,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:51,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:29:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500274366] [2022-11-20 12:29:51,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:51,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:51,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:51,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:51,292 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:29:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:51,303 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2022-11-20 12:29:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:51,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-11-20 12:29:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:51,305 INFO L225 Difference]: With dead ends: 75 [2022-11-20 12:29:51,305 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 12:29:51,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:51,307 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:51,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:29:51,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 12:29:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2022-11-20 12:29:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2022-11-20 12:29:51,324 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 31 [2022-11-20 12:29:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:51,325 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2022-11-20 12:29:51,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:29:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2022-11-20 12:29:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 12:29:51,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:51,329 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1] [2022-11-20 12:29:51,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:29:51,330 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 12:29:51,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:51,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1790293757, now seen corresponding path program 1 times [2022-11-20 12:29:51,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:51,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472656367] [2022-11-20 12:29:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:51,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 56 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 12:29:51,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:51,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472656367] [2022-11-20 12:29:51,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472656367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:51,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219457871] [2022-11-20 12:29:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:51,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:51,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:51,536 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:51,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:29:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:51,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:29:51,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 12:29:51,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:51,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219457871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:51,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:29:51,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 12 [2022-11-20 12:29:51,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762938948] [2022-11-20 12:29:51,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:51,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:29:51,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:51,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:29:51,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:29:51,687 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:51,767 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2022-11-20 12:29:51,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:29:51,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-20 12:29:51,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:51,768 INFO L225 Difference]: With dead ends: 44 [2022-11-20 12:29:51,768 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:29:51,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:29:51,770 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:51,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 34 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:29:51,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:29:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:29:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:29:51,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-11-20 12:29:51,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:51,772 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:29:51,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:29:51,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:29:51,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-20 12:29:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-20 12:29:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-20 12:29:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-20 12:29:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-20 12:29:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-20 12:29:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-20 12:29:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-20 12:29:51,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 12:29:51,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:51,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:29:52,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 12:29:52,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:29:52,137 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:29:52,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 12:29:52,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:29:52,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:29:52,138 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-20 12:29:52,138 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-20 12:29:52,139 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (and (= 3 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|)) [2022-11-20 12:29:52,139 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-20 12:29:52,139 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-20 12:29:52,139 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-20 12:29:52,139 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-11-20 12:29:52,140 INFO L899 garLoopResultBuilder]: For program point sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-20 12:29:52,140 INFO L899 garLoopResultBuilder]: For program point sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-20 12:29:52,140 INFO L899 garLoopResultBuilder]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2022-11-20 12:29:52,140 INFO L899 garLoopResultBuilder]: For program point sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,140 INFO L899 garLoopResultBuilder]: For program point sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,140 INFO L899 garLoopResultBuilder]: For program point sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,141 INFO L899 garLoopResultBuilder]: For program point sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,141 INFO L902 garLoopResultBuilder]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2022-11-20 12:29:52,141 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,141 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,142 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-20 12:29:52,142 INFO L899 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,142 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 10) no Hoare annotation was computed. [2022-11-20 12:29:52,142 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-20 12:29:52,142 INFO L899 garLoopResultBuilder]: For program point L9-3(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,144 INFO L895 garLoopResultBuilder]: At program point L9-4(line 9) the Hoare annotation is: (and (or (not (<= |sum_#in~n| 0)) (not (<= |sum_#in~m| 5)) (not (<= 5 |sum_#in~m|)) (not (<= 0 |sum_#in~n|))) (or (and (= sum_~m 3) (= sum_~n 2)) (not (= 2 |sum_#in~n|)) (not (= 3 |sum_#in~m|))) (or (not (<= 1 |sum_#in~n|)) (not (<= |sum_#in~m| 4)) (not (<= 4 |sum_#in~m|)) (and (<= sum_~m 4) (<= 4 sum_~m) (<= sum_~n 1) (<= 1 sum_~n)) (not (<= |sum_#in~n| 1)))) [2022-11-20 12:29:52,144 INFO L899 garLoopResultBuilder]: For program point L9-5(line 9) no Hoare annotation was computed. [2022-11-20 12:29:52,144 INFO L899 garLoopResultBuilder]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2022-11-20 12:29:52,148 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:52,152 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:29:52,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:29:52 BoogieIcfgContainer [2022-11-20 12:29:52,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:29:52,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:29:52,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:29:52,158 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:29:52,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:29:45" (3/4) ... [2022-11-20 12:29:52,163 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:29:52,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2022-11-20 12:29:52,173 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 12:29:52,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 12:29:52,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:29:52,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:29:52,220 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:29:52,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:29:52,221 INFO L158 Benchmark]: Toolchain (without parser) took 6803.31ms. Allocated memory is still 190.8MB. Free memory was 145.3MB in the beginning and 133.5MB in the end (delta: 11.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-20 12:29:52,221 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory was 88.3MB in the beginning and 88.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:29:52,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.04ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 134.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:29:52,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.61ms. Allocated memory is still 190.8MB. Free memory was 134.8MB in the beginning and 133.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:29:52,223 INFO L158 Benchmark]: Boogie Preprocessor took 19.25ms. Allocated memory is still 190.8MB. Free memory was 133.5MB in the beginning and 132.7MB in the end (delta: 721.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:29:52,223 INFO L158 Benchmark]: RCFGBuilder took 316.03ms. Allocated memory is still 190.8MB. Free memory was 132.7MB in the beginning and 122.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:29:52,223 INFO L158 Benchmark]: TraceAbstraction took 6166.53ms. Allocated memory is still 190.8MB. Free memory was 121.6MB in the beginning and 135.6MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:29:52,224 INFO L158 Benchmark]: Witness Printer took 62.36ms. Allocated memory is still 190.8MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:29:52,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory was 88.3MB in the beginning and 88.2MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.04ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 134.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.61ms. Allocated memory is still 190.8MB. Free memory was 134.8MB in the beginning and 133.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.25ms. Allocated memory is still 190.8MB. Free memory was 133.5MB in the beginning and 132.7MB in the end (delta: 721.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.03ms. Allocated memory is still 190.8MB. Free memory was 132.7MB in the beginning and 122.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6166.53ms. Allocated memory is still 190.8MB. Free memory was 121.6MB in the beginning and 135.6MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.36ms. Allocated memory is still 190.8MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: 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, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 555 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 613 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 463 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 718 IncrementalHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 150 mSDtfsCounter, 718 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 132 SyntacticMatches, 5 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=6, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 27 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 72 HoareAnnotationTreeSize, 13 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 832 SizeOfPredicates, 17 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 219/287 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:29:52,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c30d7ee2-67b5-483b-b074-1fc965d8bdfb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE