./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R --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 866342b97e5be917007cb97e07a0644c7c9d2aa9b428c32cf026d727d672a191 --- 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-38b53e6 [2022-11-25 18:33:02,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:33:02,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:33:02,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:33:02,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:33:02,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:33:02,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:33:02,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:33:02,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:33:02,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:33:02,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:33:02,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:33:02,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:33:02,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:33:02,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:33:02,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:33:02,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:33:02,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:33:02,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:33:02,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:33:02,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:33:02,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:33:02,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:33:02,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:33:02,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:33:02,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:33:02,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:33:02,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:33:02,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:33:02,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:33:02,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:33:02,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:33:02,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:33:02,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:33:02,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:33:02,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:33:02,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:33:02,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:33:02,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:33:02,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:33:02,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:33:02,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:33:02,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:33:02,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:33:02,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:33:02,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:33:02,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:33:02,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:33:02,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:33:02,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:33:02,610 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:33:02,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:33:02,611 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:33:02,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:33:02,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:33:02,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:33:02,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:33:02,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:33:02,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:33:02,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:33:02,613 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:33:02,613 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:33:02,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:33:02,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:33:02,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:33:02,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:33:02,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:33:02,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:33:02,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:02,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:33:02,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:33:02,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:33:02,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:33:02,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:33:02,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:33:02,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:33:02,616 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:33:02,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:33:02,616 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 866342b97e5be917007cb97e07a0644c7c9d2aa9b428c32cf026d727d672a191 [2022-11-25 18:33:02,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:33:03,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:33:03,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:33:03,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:33:03,022 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:33:03,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/loop-acceleration/array_2-2.i [2022-11-25 18:33:06,366 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:33:06,618 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:33:06,619 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/sv-benchmarks/c/loop-acceleration/array_2-2.i [2022-11-25 18:33:06,625 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/data/edf2daa6b/0a63cc61fb944afd8f836ffe861f6f00/FLAG300ad5ae1 [2022-11-25 18:33:06,641 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/data/edf2daa6b/0a63cc61fb944afd8f836ffe861f6f00 [2022-11-25 18:33:06,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:33:06,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:33:06,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:06,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:33:06,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:33:06,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d358a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06, skipping insertion in model container [2022-11-25 18:33:06,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:33:06,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:33:06,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/sv-benchmarks/c/loop-acceleration/array_2-2.i[849,862] [2022-11-25 18:33:06,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:06,855 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:33:06,864 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_29478bc2-9bd2-436d-92f6-fbcbde8937ee/sv-benchmarks/c/loop-acceleration/array_2-2.i[849,862] [2022-11-25 18:33:06,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:06,881 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:33:06,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06 WrapperNode [2022-11-25 18:33:06,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:06,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:06,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:33:06,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:33:06,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,914 INFO L138 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-11-25 18:33:06,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:06,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:33:06,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:33:06,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:33:06,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:33:06,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:33:06,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:33:06,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:33:06,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (1/1) ... [2022-11-25 18:33:06,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:06,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:06,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:33:06,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:33:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:33:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:33:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:33:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:33:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:33:07,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:33:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:33:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:33:07,099 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:33:07,101 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:33:07,258 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:33:07,264 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:33:07,265 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:33:07,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:07 BoogieIcfgContainer [2022-11-25 18:33:07,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:33:07,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:33:07,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:33:07,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:33:07,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:33:06" (1/3) ... [2022-11-25 18:33:07,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4119b76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:07, skipping insertion in model container [2022-11-25 18:33:07,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:06" (2/3) ... [2022-11-25 18:33:07,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4119b76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:07, skipping insertion in model container [2022-11-25 18:33:07,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:07" (3/3) ... [2022-11-25 18:33:07,280 INFO L112 eAbstractionObserver]: Analyzing ICFG array_2-2.i [2022-11-25 18:33:07,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:33:07,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 18:33:07,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:33:07,398 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;@61325a92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:33:07,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 18:33:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:33:07,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:07,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:33:07,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:07,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:07,421 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-11-25 18:33:07,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:07,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579759388] [2022-11-25 18:33:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:07,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:07,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:07,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579759388] [2022-11-25 18:33:07,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579759388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:07,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:07,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:33:07,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055797821] [2022-11-25 18:33:07,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:07,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:33:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:07,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:33:07,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:33:07,765 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:07,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:07,841 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2022-11-25 18:33:07,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:07,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 18:33:07,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:07,852 INFO L225 Difference]: With dead ends: 48 [2022-11-25 18:33:07,852 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 18:33:07,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:33:07,859 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:07,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 18:33:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2022-11-25 18:33:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-25 18:33:07,900 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2022-11-25 18:33:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:07,902 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-25 18:33:07,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:07,902 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-25 18:33:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 18:33:07,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:07,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 18:33:07,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:33:07,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:07,905 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-11-25 18:33:07,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:07,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976672419] [2022-11-25 18:33:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:07,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:08,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:08,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976672419] [2022-11-25 18:33:08,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976672419] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:33:08,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35840006] [2022-11-25 18:33:08,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:08,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:08,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:08,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:08,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:33:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:08,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:33:08,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:33:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:08,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:33:08,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35840006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:08,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:33:08,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-25 18:33:08,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454404188] [2022-11-25 18:33:08,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:33:08,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:08,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:33:08,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:33:08,443 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:08,489 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-25 18:33:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 18:33:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:08,491 INFO L225 Difference]: With dead ends: 25 [2022-11-25 18:33:08,491 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 18:33:08,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:33:08,493 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:08,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 18:33:08,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2022-11-25 18:33:08,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-25 18:33:08,499 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-11-25 18:33:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:08,500 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-25 18:33:08,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-25 18:33:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 18:33:08,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:08,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-25 18:33:08,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:33:08,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:08,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-11-25 18:33:08,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:08,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060121201] [2022-11-25 18:33:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:33:08,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060121201] [2022-11-25 18:33:08,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060121201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:08,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:08,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:33:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380907799] [2022-11-25 18:33:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:08,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:33:08,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:08,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:33:08,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:33:08,795 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:08,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:08,837 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-25 18:33:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:08,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 18:33:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:08,839 INFO L225 Difference]: With dead ends: 19 [2022-11-25 18:33:08,839 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 18:33:08,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:33:08,841 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:08,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 18:33:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2022-11-25 18:33:08,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 18:33:08,847 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2022-11-25 18:33:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:08,848 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 18:33:08,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-25 18:33:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 18:33:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:33:08,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:08,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:08,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:33:08,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:08,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-11-25 18:33:08,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:08,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004084828] [2022-11-25 18:33:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:08,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:08,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:08,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:08,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004084828] [2022-11-25 18:33:08,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004084828] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:33:08,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520307128] [2022-11-25 18:33:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:08,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:08,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:08,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:08,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:33:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:09,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:33:09,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:33:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:09,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:33:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:09,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520307128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:33:09,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:33:09,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-25 18:33:09,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828847313] [2022-11-25 18:33:09,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:33:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:33:09,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:33:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:33:09,162 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:09,264 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-11-25 18:33:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:33:09,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 18:33:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:09,266 INFO L225 Difference]: With dead ends: 35 [2022-11-25 18:33:09,268 INFO L226 Difference]: Without dead ends: 28 [2022-11-25 18:33:09,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:33:09,270 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 26 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:09,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:33:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-25 18:33:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2022-11-25 18:33:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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) [2022-11-25 18:33:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-25 18:33:09,283 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2022-11-25 18:33:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:09,283 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-25 18:33:09,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-25 18:33:09,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 18:33:09,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:09,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:09,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 18:33:09,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:09,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:09,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:09,492 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-11-25 18:33:09,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:09,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894234640] [2022-11-25 18:33:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 18:33:09,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:09,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894234640] [2022-11-25 18:33:09,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894234640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:09,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:09,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:33:09,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879522874] [2022-11-25 18:33:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:09,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:33:09,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:33:09,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:33:09,625 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:09,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:09,665 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-25 18:33:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:09,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 18:33:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:09,669 INFO L225 Difference]: With dead ends: 28 [2022-11-25 18:33:09,669 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 18:33:09,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:33:09,673 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:09,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 18:33:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-25 18:33:09,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-11-25 18:33:09,685 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2022-11-25 18:33:09,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:09,686 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-11-25 18:33:09,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-11-25 18:33:09,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 18:33:09,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:09,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:33:09,688 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:09,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:09,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-11-25 18:33:09,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:09,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160283030] [2022-11-25 18:33:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:09,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:09,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:09,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160283030] [2022-11-25 18:33:09,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160283030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:33:09,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861789475] [2022-11-25 18:33:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:09,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:09,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:09,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 18:33:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:10,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:33:10,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:33:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:10,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:33:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:10,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861789475] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:33:10,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:33:10,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-25 18:33:10,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047193120] [2022-11-25 18:33:10,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:33:10,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 18:33:10,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:10,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 18:33:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-25 18:33:10,263 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:10,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:10,436 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-11-25 18:33:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:33:10,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-25 18:33:10,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:10,439 INFO L225 Difference]: With dead ends: 53 [2022-11-25 18:33:10,440 INFO L226 Difference]: Without dead ends: 42 [2022-11-25 18:33:10,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:33:10,443 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 45 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:10,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 42 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:33:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-25 18:33:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-25 18:33:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.075) internal successors, (43), 41 states have internal predecessors, (43), 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) [2022-11-25 18:33:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2022-11-25 18:33:10,458 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 23 [2022-11-25 18:33:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:10,459 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2022-11-25 18:33:10,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2022-11-25 18:33:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 18:33:10,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:10,461 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:10,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:33:10,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:10,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:10,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:10,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1327043278, now seen corresponding path program 2 times [2022-11-25 18:33:10,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:10,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492508832] [2022-11-25 18:33:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:10,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:11,105 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:11,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:11,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492508832] [2022-11-25 18:33:11,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492508832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:33:11,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787859623] [2022-11-25 18:33:11,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:33:11,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:11,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:11,108 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:11,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 18:33:11,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:33:11,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:33:11,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 18:33:11,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:33:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:11,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:33:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:11,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787859623] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:33:11,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:33:11,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-25 18:33:11,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329377333] [2022-11-25 18:33:11,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:33:11,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 18:33:11,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:11,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 18:33:11,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:33:11,680 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:12,057 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2022-11-25 18:33:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-25 18:33:12,058 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-25 18:33:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:12,059 INFO L225 Difference]: With dead ends: 85 [2022-11-25 18:33:12,059 INFO L226 Difference]: Without dead ends: 74 [2022-11-25 18:33:12,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 18:33:12,061 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 89 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:12,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 64 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:33:12,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-25 18:33:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-25 18:33:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.0416666666666667) internal successors, (75), 73 states have internal predecessors, (75), 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) [2022-11-25 18:33:12,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2022-11-25 18:33:12,068 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 39 [2022-11-25 18:33:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:12,069 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2022-11-25 18:33:12,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2022-11-25 18:33:12,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 18:33:12,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:12,071 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:12,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:33:12,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 18:33:12,276 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:12,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:12,277 INFO L85 PathProgramCache]: Analyzing trace with hash -753838418, now seen corresponding path program 3 times [2022-11-25 18:33:12,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:12,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222057444] [2022-11-25 18:33:12,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:12,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:33:13,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222057444] [2022-11-25 18:33:13,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222057444] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:33:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203583130] [2022-11-25 18:33:13,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:33:13,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:13,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:13,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:13,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:33:13,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 18:33:13,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:33:13,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:33:13,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:33:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-25 18:33:13,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:33:13,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203583130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:13,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:33:13,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2022-11-25 18:33:13,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166595365] [2022-11-25 18:33:13,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:13,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:33:13,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:13,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:33:13,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 18:33:13,537 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:13,588 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2022-11-25 18:33:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:13,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-25 18:33:13,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:13,595 INFO L225 Difference]: With dead ends: 74 [2022-11-25 18:33:13,595 INFO L226 Difference]: Without dead ends: 73 [2022-11-25 18:33:13,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 18:33:13,597 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:13,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-25 18:33:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-25 18:33:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 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) [2022-11-25 18:33:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2022-11-25 18:33:13,619 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 71 [2022-11-25 18:33:13,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:13,620 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2022-11-25 18:33:13,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:13,620 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2022-11-25 18:33:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 18:33:13,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:13,625 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:13,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:33:13,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 18:33:13,831 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 18:33:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 1 times [2022-11-25 18:33:13,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:13,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133641323] [2022-11-25 18:33:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:13,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-11-25 18:33:13,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133641323] [2022-11-25 18:33:13,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133641323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:13,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:13,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:33:13,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146471385] [2022-11-25 18:33:13,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:13,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:33:13,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:13,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:33:13,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:33:13,984 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:14,016 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2022-11-25 18:33:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:14,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-25 18:33:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:14,019 INFO L225 Difference]: With dead ends: 73 [2022-11-25 18:33:14,019 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:33:14,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:33:14,022 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:14,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:33:14,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:33:14,024 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) [2022-11-25 18:33:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:33:14,024 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2022-11-25 18:33:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:14,025 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:33:14,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:14,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:33:14,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:33:14,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 18:33:14,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 18:33:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 18:33:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 18:33:14,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:33:14,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:33:14,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 18:33:14,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:33:14,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-25 18:33:14,055 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 32) no Hoare annotation was computed. [2022-11-25 18:33:14,056 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2022-11-25 18:33:14,057 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2022-11-25 18:33:14,057 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 32) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2022-11-25 18:33:14,057 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 28) no Hoare annotation was computed. [2022-11-25 18:33:14,057 INFO L899 garLoopResultBuilder]: For program point L29-6(lines 29 32) no Hoare annotation was computed. [2022-11-25 18:33:14,057 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-25 18:33:14,058 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-25 18:33:14,058 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2022-11-25 18:33:14,058 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 28) no Hoare annotation was computed. [2022-11-25 18:33:14,058 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-11-25 18:33:14,058 INFO L902 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2022-11-25 18:33:14,059 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:33:14,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 18:33:14,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-25 18:33:14,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:33:14,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:33:14,059 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 34) no Hoare annotation was computed. [2022-11-25 18:33:14,060 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-25 18:33:14,063 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-11-25 18:33:14,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:33:14,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:33:14 BoogieIcfgContainer [2022-11-25 18:33:14,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:33:14,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:33:14,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:33:14,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:33:14,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:07" (3/4) ... [2022-11-25 18:33:14,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:33:14,094 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 18:33:14,094 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 18:33:14,094 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 18:33:14,095 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:33:14,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:33:14,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:33:14,147 INFO L158 Benchmark]: Toolchain (without parser) took 7501.21ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 105.3MB in the beginning and 63.6MB in the end (delta: 41.7MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2022-11-25 18:33:14,147 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 66.2MB in the end (delta: 244.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:33:14,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.89ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 94.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:33:14,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.81ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 93.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:14,148 INFO L158 Benchmark]: Boogie Preprocessor took 22.30ms. Allocated memory is still 136.3MB. Free memory was 93.2MB in the beginning and 92.3MB in the end (delta: 902.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:14,148 INFO L158 Benchmark]: RCFGBuilder took 329.21ms. Allocated memory is still 136.3MB. Free memory was 91.9MB in the beginning and 81.5MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:33:14,149 INFO L158 Benchmark]: TraceAbstraction took 6805.71ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 80.7MB in the beginning and 66.8MB in the end (delta: 14.0MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-11-25 18:33:14,149 INFO L158 Benchmark]: Witness Printer took 67.11ms. Allocated memory is still 172.0MB. Free memory was 66.8MB in the beginning and 63.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:33:14,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 66.2MB in the end (delta: 244.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.89ms. Allocated memory is still 136.3MB. Free memory was 104.9MB in the beginning and 94.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.81ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 93.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.30ms. Allocated memory is still 136.3MB. Free memory was 93.2MB in the beginning and 92.3MB in the end (delta: 902.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.21ms. Allocated memory is still 136.3MB. Free memory was 91.9MB in the beginning and 81.5MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6805.71ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 80.7MB in the beginning and 66.8MB in the end (delta: 14.0MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Witness Printer took 67.11ms. Allocated memory is still 172.0MB. Free memory was 66.8MB in the beginning and 63.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 76 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 329 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=7, InterpolantAutomatonStates: 77, 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, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 21 NumberOfFragments, 11 HoareAnnotationTreeSize, 3 FomulaSimplifications, 164 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 412 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 942 SizeOfPredicates, 13 NumberOfNonLiveVariables, 617 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 920/1679 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 RESULT: Ultimate proved your program to be correct! [2022-11-25 18:33:14,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29478bc2-9bd2-436d-92f6-fbcbde8937ee/bin/uautomizer-ZsLfNo2U6R/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