./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c --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_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/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_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/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_e160c961-4abe-421c-8406-de7924563f35/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 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c --- 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 17:04:26,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:04:26,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:04:26,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:04:26,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:04:26,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:04:26,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:04:26,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:04:26,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:04:26,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:04:26,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:04:26,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:04:26,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:04:26,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:04:26,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:04:26,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:04:26,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:04:26,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:04:26,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:04:26,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:04:26,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:04:26,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:04:26,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:04:26,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:04:26,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:04:26,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:04:26,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:04:26,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:04:26,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:04:26,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:04:26,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:04:26,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:04:26,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:04:26,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:04:26,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:04:26,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:04:26,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:04:26,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:04:26,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:04:26,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:04:26,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:04:26,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:04:26,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:04:26,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:04:26,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:04:26,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:04:26,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:04:26,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:04:26,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:04:26,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:04:26,538 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:04:26,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:04:26,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:04:26,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:04:26,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:04:26,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:04:26,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:04:26,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:04:26,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:04:26,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:04:26,540 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:04:26,540 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:04:26,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:04:26,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:04:26,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:04:26,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:04:26,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:04:26,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:04:26,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:04:26,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:04:26,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:04:26,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:04:26,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:04:26,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:04:26,543 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:04:26,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:04:26,543 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:04:26,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:04:26,544 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_e160c961-4abe-421c-8406-de7924563f35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c [2022-11-25 17:04:26,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:04:26,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:04:26,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:04:26,905 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:04:26,905 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:04:26,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2022-11-25 17:04:30,005 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:04:30,200 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:04:30,201 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2022-11-25 17:04:30,208 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/data/4c513341d/2bdf3042258d43c79677c2e7dac95768/FLAG4e31c0f8b [2022-11-25 17:04:30,225 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/data/4c513341d/2bdf3042258d43c79677c2e7dac95768 [2022-11-25 17:04:30,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:04:30,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:04:30,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:04:30,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:04:30,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:04:30,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd96a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30, skipping insertion in model container [2022-11-25 17:04:30,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:04:30,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:04:30,464 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_e160c961-4abe-421c-8406-de7924563f35/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2022-11-25 17:04:30,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:04:30,487 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:04:30,510 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_e160c961-4abe-421c-8406-de7924563f35/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2022-11-25 17:04:30,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:04:30,528 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:04:30,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30 WrapperNode [2022-11-25 17:04:30,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:04:30,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:04:30,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:04:30,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:04:30,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,568 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-25 17:04:30,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:04:30,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:04:30,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:04:30,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:04:30,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:04:30,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:04:30,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:04:30,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:04:30,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (1/1) ... [2022-11-25 17:04:30,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:04:30,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:30,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:04:30,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:04:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:04:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:04:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:04:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-25 17:04:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-25 17:04:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:04:30,789 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:04:30,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:04:31,034 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:04:31,042 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:04:31,042 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:04:31,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:31 BoogieIcfgContainer [2022-11-25 17:04:31,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:04:31,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:04:31,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:04:31,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:04:31,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:04:30" (1/3) ... [2022-11-25 17:04:31,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f83885f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:04:31, skipping insertion in model container [2022-11-25 17:04:31,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:30" (2/3) ... [2022-11-25 17:04:31,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f83885f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:04:31, skipping insertion in model container [2022-11-25 17:04:31,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:31" (3/3) ... [2022-11-25 17:04:31,071 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_15x0-2.c [2022-11-25 17:04:31,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:04:31,110 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:04:31,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:04:31,210 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;@7a141346, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:04:31,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 17:04:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:04:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 17:04:31,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:31,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:04:31,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:31,246 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-11-25 17:04:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:31,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441462856] [2022-11-25 17:04:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:31,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:31,519 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 17:04:31,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:31,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441462856] [2022-11-25 17:04:31,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441462856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:31,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:31,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:04:31,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618316336] [2022-11-25 17:04:31,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:31,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:04:31,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:04:31,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:04:31,572 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:31,780 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2022-11-25 17:04:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:04:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 17:04:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:31,790 INFO L225 Difference]: With dead ends: 61 [2022-11-25 17:04:31,790 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 17:04:31,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:04:31,797 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 30 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:31,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 72 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:04:31,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 17:04:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2022-11-25 17:04:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:04:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-11-25 17:04:31,855 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 6 [2022-11-25 17:04:31,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:31,856 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-11-25 17:04:31,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-11-25 17:04:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:04:31,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:31,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:31,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:04:31,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:31,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:31,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1836678861, now seen corresponding path program 1 times [2022-11-25 17:04:31,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:31,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515951431] [2022-11-25 17:04:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:32,020 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 17:04:32,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:32,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515951431] [2022-11-25 17:04:32,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515951431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:32,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:32,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:04:32,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528430183] [2022-11-25 17:04:32,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:32,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:04:32,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:04:32,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:04:32,025 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:32,123 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-11-25 17:04:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:04:32,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 17:04:32,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:32,125 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:04:32,125 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 17:04:32,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:04:32,127 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 33 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:32,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 24 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:04:32,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 17:04:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-25 17:04:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:04:32,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-25 17:04:32,136 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 7 [2022-11-25 17:04:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:32,137 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-25 17:04:32,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-25 17:04:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:04:32,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:32,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:32,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:04:32,139 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:32,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1102469906, now seen corresponding path program 1 times [2022-11-25 17:04:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:32,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062303834] [2022-11-25 17:04:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:32,249 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 17:04:32,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:32,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062303834] [2022-11-25 17:04:32,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062303834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:32,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:32,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:04:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381907518] [2022-11-25 17:04:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:32,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:04:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:04:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:04:32,253 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:32,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:32,343 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-11-25 17:04:32,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:04:32,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 17:04:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:32,346 INFO L225 Difference]: With dead ends: 37 [2022-11-25 17:04:32,349 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 17:04:32,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:04:32,351 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 16 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:32,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 68 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:04:32,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 17:04:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-25 17:04:32,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:04:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-25 17:04:32,373 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 8 [2022-11-25 17:04:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:32,373 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-25 17:04:32,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:32,374 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-25 17:04:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:04:32,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:32,375 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:32,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:04:32,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:32,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:32,376 INFO L85 PathProgramCache]: Analyzing trace with hash -881410885, now seen corresponding path program 1 times [2022-11-25 17:04:32,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:32,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592401318] [2022-11-25 17:04:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:32,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:32,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:32,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:32,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592401318] [2022-11-25 17:04:32,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592401318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:32,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411087388] [2022-11-25 17:04:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:32,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:32,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:32,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:32,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:04:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:32,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:04:32,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:32,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:32,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411087388] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:32,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:32,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-11-25 17:04:32,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879182007] [2022-11-25 17:04:32,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:32,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:04:32,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:32,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:04:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:04:32,858 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:33,114 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2022-11-25 17:04:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:04:33,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 17:04:33,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:33,117 INFO L225 Difference]: With dead ends: 88 [2022-11-25 17:04:33,117 INFO L226 Difference]: Without dead ends: 72 [2022-11-25 17:04:33,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:04:33,119 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 102 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:33,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 121 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:04:33,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-25 17:04:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2022-11-25 17:04:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 52 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:04:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2022-11-25 17:04:33,147 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 13 [2022-11-25 17:04:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:33,147 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2022-11-25 17:04:33,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2022-11-25 17:04:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:04:33,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:33,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:33,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:33,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:33,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:33,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:33,359 INFO L85 PathProgramCache]: Analyzing trace with hash -927147459, now seen corresponding path program 1 times [2022-11-25 17:04:33,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:33,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344536070] [2022-11-25 17:04:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:33,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:33,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344536070] [2022-11-25 17:04:33,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344536070] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:33,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027892016] [2022-11-25 17:04:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:33,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:33,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:33,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:33,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:04:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:33,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:04:33,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:33,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:04:33,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027892016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:33,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:04:33,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-25 17:04:33,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010546738] [2022-11-25 17:04:33,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:33,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:04:33,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:33,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:04:33,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:04:33,657 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 7 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:33,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:33,745 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-11-25 17:04:33,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:04:33,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-25 17:04:33,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:33,747 INFO L225 Difference]: With dead ends: 64 [2022-11-25 17:04:33,747 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 17:04:33,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:04:33,749 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:33,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 41 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:04:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 17:04:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-25 17:04:33,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:04:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-11-25 17:04:33,759 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 15 [2022-11-25 17:04:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:33,760 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-11-25 17:04:33,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:33,760 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-11-25 17:04:33,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:04:33,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:33,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:33,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:33,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:33,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1323199908, now seen corresponding path program 1 times [2022-11-25 17:04:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:33,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932368147] [2022-11-25 17:04:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:34,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:34,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932368147] [2022-11-25 17:04:34,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932368147] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:34,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796122762] [2022-11-25 17:04:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:34,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:34,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:34,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:34,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:04:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:34,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:04:34,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:34,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:34,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:34,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:34,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796122762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:34,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:34,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-25 17:04:34,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717655679] [2022-11-25 17:04:34,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:34,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 17:04:34,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 17:04:34,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:04:34,332 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:34,522 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2022-11-25 17:04:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:04:34,524 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 17:04:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:34,529 INFO L225 Difference]: With dead ends: 66 [2022-11-25 17:04:34,529 INFO L226 Difference]: Without dead ends: 65 [2022-11-25 17:04:34,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:04:34,531 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:34,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 165 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:04:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-25 17:04:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2022-11-25 17:04:34,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 51 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 17:04:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2022-11-25 17:04:34,551 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 16 [2022-11-25 17:04:34,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:34,551 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2022-11-25 17:04:34,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2022-11-25 17:04:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 17:04:34,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:34,553 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-25 17:04:34,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 17:04:34,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:04:34,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1208760848, now seen corresponding path program 2 times [2022-11-25 17:04:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:34,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98043260] [2022-11-25 17:04:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:35,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:35,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98043260] [2022-11-25 17:04:35,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98043260] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:35,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241427397] [2022-11-25 17:04:35,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:04:35,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:35,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:35,071 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:35,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:04:35,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:04:35,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:35,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:04:35,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:35,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:35,497 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:35,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241427397] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:35,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:35,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2022-11-25 17:04:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588821973] [2022-11-25 17:04:35,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:35,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 17:04:35,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:35,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 17:04:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:04:35,506 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:35,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:35,917 INFO L93 Difference]: Finished difference Result 155 states and 167 transitions. [2022-11-25 17:04:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 17:04:35,919 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-25 17:04:35,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:35,922 INFO L225 Difference]: With dead ends: 155 [2022-11-25 17:04:35,922 INFO L226 Difference]: Without dead ends: 131 [2022-11-25 17:04:35,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:04:35,929 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 218 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:35,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 302 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:04:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-25 17:04:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2022-11-25 17:04:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:04:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 130 transitions. [2022-11-25 17:04:35,968 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 130 transitions. Word has length 34 [2022-11-25 17:04:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:35,968 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 130 transitions. [2022-11-25 17:04:35,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 130 transitions. [2022-11-25 17:04:35,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 17:04:35,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:35,970 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-25 17:04:35,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:36,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:36,170 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:36,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1193440303, now seen corresponding path program 2 times [2022-11-25 17:04:36,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:36,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248818465] [2022-11-25 17:04:36,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:36,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:36,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:36,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248818465] [2022-11-25 17:04:36,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248818465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:36,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370572831] [2022-11-25 17:04:36,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:04:36,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:36,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:36,381 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:36,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:04:36,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:04:36,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:36,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:04:36,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:36,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:36,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370572831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:36,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:36,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2022-11-25 17:04:36,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086988887] [2022-11-25 17:04:36,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:36,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-25 17:04:36,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-25 17:04:36,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2022-11-25 17:04:36,887 INFO L87 Difference]: Start difference. First operand 123 states and 130 transitions. Second operand has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:37,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:37,288 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2022-11-25 17:04:37,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 17:04:37,289 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-25 17:04:37,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:37,290 INFO L225 Difference]: With dead ends: 126 [2022-11-25 17:04:37,290 INFO L226 Difference]: Without dead ends: 125 [2022-11-25 17:04:37,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 17:04:37,292 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 158 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:37,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 357 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:04:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-25 17:04:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2022-11-25 17:04:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 99 states have internal predecessors, (100), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:04:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2022-11-25 17:04:37,307 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 37 [2022-11-25 17:04:37,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:37,308 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2022-11-25 17:04:37,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2022-11-25 17:04:37,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 17:04:37,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:37,311 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-11-25 17:04:37,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 17:04:37,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:37,519 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash -448735504, now seen corresponding path program 3 times [2022-11-25 17:04:37,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:37,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855608345] [2022-11-25 17:04:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:38,134 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:38,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:38,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855608345] [2022-11-25 17:04:38,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855608345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:38,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945507611] [2022-11-25 17:04:38,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:04:38,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:38,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:38,137 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:38,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:04:38,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 17:04:38,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:38,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:04:38,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-11-25 17:04:38,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:04:38,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945507611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:38,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:04:38,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2022-11-25 17:04:38,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192616352] [2022-11-25 17:04:38,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:38,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:04:38,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:38,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:04:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2022-11-25 17:04:38,365 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:38,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:38,481 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2022-11-25 17:04:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:04:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 17:04:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:38,485 INFO L225 Difference]: With dead ends: 125 [2022-11-25 17:04:38,486 INFO L226 Difference]: Without dead ends: 124 [2022-11-25 17:04:38,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2022-11-25 17:04:38,493 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:38,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 46 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:04:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-25 17:04:38,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2022-11-25 17:04:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 95 states have (on average 1.0421052631578946) internal successors, (99), 98 states have internal predecessors, (99), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:04:38,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2022-11-25 17:04:38,522 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 76 [2022-11-25 17:04:38,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:38,525 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2022-11-25 17:04:38,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2022-11-25 17:04:38,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 17:04:38,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:38,538 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:38,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:38,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:38,739 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:38,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:38,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1025898680, now seen corresponding path program 1 times [2022-11-25 17:04:38,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:38,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117849480] [2022-11-25 17:04:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:38,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:39,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:39,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117849480] [2022-11-25 17:04:39,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117849480] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:39,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956478491] [2022-11-25 17:04:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:39,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:39,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:39,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:39,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:04:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:39,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 17:04:39,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:40,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:41,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956478491] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:41,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:41,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 58 [2022-11-25 17:04:41,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321172912] [2022-11-25 17:04:41,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:41,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-25 17:04:41,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:41,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-25 17:04:41,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=434, Invalid=2872, Unknown=0, NotChecked=0, Total=3306 [2022-11-25 17:04:41,165 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 58 states, 55 states have (on average 2.8545454545454545) internal successors, (157), 32 states have internal predecessors, (157), 27 states have call successors, (27), 26 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:42,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:42,651 INFO L93 Difference]: Finished difference Result 219 states and 230 transitions. [2022-11-25 17:04:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-25 17:04:42,652 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 55 states have (on average 2.8545454545454545) internal successors, (157), 32 states have internal predecessors, (157), 27 states have call successors, (27), 26 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-25 17:04:42,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:42,654 INFO L225 Difference]: With dead ends: 219 [2022-11-25 17:04:42,654 INFO L226 Difference]: Without dead ends: 177 [2022-11-25 17:04:42,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 107 SyntacticMatches, 14 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2013 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1265, Invalid=5875, Unknown=0, NotChecked=0, Total=7140 [2022-11-25 17:04:42,659 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 530 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:42,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 646 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:04:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-25 17:04:42,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 171. [2022-11-25 17:04:42,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 135 states have (on average 1.0518518518518518) internal successors, (142), 137 states have internal predecessors, (142), 17 states have call successors, (17), 16 states have call predecessors, (17), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-25 17:04:42,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 176 transitions. [2022-11-25 17:04:42,683 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 176 transitions. Word has length 77 [2022-11-25 17:04:42,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:42,683 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 176 transitions. [2022-11-25 17:04:42,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 55 states have (on average 2.8545454545454545) internal successors, (157), 32 states have internal predecessors, (157), 27 states have call successors, (27), 26 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:42,684 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 176 transitions. [2022-11-25 17:04:42,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 17:04:42,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:42,686 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1] [2022-11-25 17:04:42,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:42,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:04:42,892 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:42,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:42,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1027550660, now seen corresponding path program 3 times [2022-11-25 17:04:42,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:42,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318940657] [2022-11-25 17:04:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:42,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:43,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:43,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318940657] [2022-11-25 17:04:43,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318940657] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:43,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513350271] [2022-11-25 17:04:43,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:04:43,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:43,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:43,577 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:43,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:04:43,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-25 17:04:43,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:43,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-25 17:04:43,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:43,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:44,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513350271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:44,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:44,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 54 [2022-11-25 17:04:44,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122054030] [2022-11-25 17:04:44,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:44,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-25 17:04:44,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-25 17:04:44,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=2260, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 17:04:44,782 INFO L87 Difference]: Start difference. First operand 171 states and 176 transitions. Second operand has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:46,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:46,018 INFO L93 Difference]: Finished difference Result 291 states and 314 transitions. [2022-11-25 17:04:46,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-25 17:04:46,019 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-25 17:04:46,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:46,021 INFO L225 Difference]: With dead ends: 291 [2022-11-25 17:04:46,021 INFO L226 Difference]: Without dead ends: 290 [2022-11-25 17:04:46,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1636, Invalid=4526, Unknown=0, NotChecked=0, Total=6162 [2022-11-25 17:04:46,026 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 814 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:46,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 532 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:04:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-25 17:04:46,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 279. [2022-11-25 17:04:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 225 states have (on average 1.0933333333333333) internal successors, (246), 227 states have internal predecessors, (246), 26 states have call successors, (26), 25 states have call predecessors, (26), 25 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-25 17:04:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 298 transitions. [2022-11-25 17:04:46,055 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 298 transitions. Word has length 86 [2022-11-25 17:04:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:46,057 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 298 transitions. [2022-11-25 17:04:46,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:46,057 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 298 transitions. [2022-11-25 17:04:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 17:04:46,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:46,063 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:46,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:46,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:04:46,270 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:46,270 INFO L85 PathProgramCache]: Analyzing trace with hash -779338179, now seen corresponding path program 2 times [2022-11-25 17:04:46,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:46,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155151600] [2022-11-25 17:04:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:47,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:47,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155151600] [2022-11-25 17:04:47,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155151600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:47,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9393206] [2022-11-25 17:04:47,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:04:47,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:47,295 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:47,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:04:47,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:04:47,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:47,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-25 17:04:47,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:47,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:49,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9393206] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:49,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:49,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 73 [2022-11-25 17:04:49,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456615176] [2022-11-25 17:04:49,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:49,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-11-25 17:04:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:49,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-11-25 17:04:49,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=4178, Unknown=0, NotChecked=0, Total=5402 [2022-11-25 17:04:49,169 INFO L87 Difference]: Start difference. First operand 279 states and 298 transitions. Second operand has 74 states, 70 states have (on average 2.8714285714285714) internal successors, (201), 41 states have internal predecessors, (201), 34 states have call successors, (34), 33 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:51,819 INFO L93 Difference]: Finished difference Result 398 states and 438 transitions. [2022-11-25 17:04:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-11-25 17:04:51,820 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 70 states have (on average 2.8714285714285714) internal successors, (201), 41 states have internal predecessors, (201), 34 states have call successors, (34), 33 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 17:04:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:51,823 INFO L225 Difference]: With dead ends: 398 [2022-11-25 17:04:51,823 INFO L226 Difference]: Without dead ends: 396 [2022-11-25 17:04:51,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3697 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3543, Invalid=11709, Unknown=0, NotChecked=0, Total=15252 [2022-11-25 17:04:51,829 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 1471 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:51,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 551 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 17:04:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-25 17:04:51,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 362. [2022-11-25 17:04:51,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 295 states have (on average 1.0610169491525423) internal successors, (313), 296 states have internal predecessors, (313), 33 states have call successors, (33), 32 states have call predecessors, (33), 32 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-11-25 17:04:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 379 transitions. [2022-11-25 17:04:51,855 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 379 transitions. Word has length 112 [2022-11-25 17:04:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:51,855 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 379 transitions. [2022-11-25 17:04:51,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 70 states have (on average 2.8714285714285714) internal successors, (201), 41 states have internal predecessors, (201), 34 states have call successors, (34), 33 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:51,856 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 379 transitions. [2022-11-25 17:04:51,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-25 17:04:51,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:51,858 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:51,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:52,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:04:52,064 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:52,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1000681952, now seen corresponding path program 1 times [2022-11-25 17:04:52,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:52,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723804589] [2022-11-25 17:04:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:52,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:04:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2022-11-25 17:04:52,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:52,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723804589] [2022-11-25 17:04:52,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723804589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:52,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:52,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:04:52,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887068549] [2022-11-25 17:04:52,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:52,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:04:52,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:52,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:04:52,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:52,530 INFO L87 Difference]: Start difference. First operand 362 states and 379 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:04:52,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:52,549 INFO L93 Difference]: Finished difference Result 362 states and 379 transitions. [2022-11-25 17:04:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:04:52,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 162 [2022-11-25 17:04:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:52,556 INFO L225 Difference]: With dead ends: 362 [2022-11-25 17:04:52,556 INFO L226 Difference]: Without dead ends: 228 [2022-11-25 17:04:52,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:52,562 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:52,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:04:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-25 17:04:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 227. [2022-11-25 17:04:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 194 states have (on average 1.0051546391752577) internal successors, (195), 194 states have internal predecessors, (195), 32 states have call successors, (32), 32 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 227 transitions. [2022-11-25 17:04:52,580 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 227 transitions. Word has length 162 [2022-11-25 17:04:52,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:52,582 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 227 transitions. [2022-11-25 17:04:52,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:04:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 227 transitions. [2022-11-25 17:04:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-25 17:04:52,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:52,587 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 31, 31, 1, 1, 1, 1] [2022-11-25 17:04:52,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:04:52,588 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:04:52,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1376118276, now seen corresponding path program 4 times [2022-11-25 17:04:52,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:52,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141659159] [2022-11-25 17:04:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:52,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 2537 proven. 0 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2022-11-25 17:04:53,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141659159] [2022-11-25 17:04:53,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141659159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:53,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:53,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-11-25 17:04:53,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84975521] [2022-11-25 17:04:53,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:53,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 17:04:53,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 17:04:53,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 17:04:53,853 INFO L87 Difference]: Start difference. First operand 227 states and 227 transitions. Second operand has 35 states, 34 states have (on average 2.9705882352941178) internal successors, (101), 19 states have internal predecessors, (101), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:54,363 INFO L93 Difference]: Finished difference Result 227 states and 227 transitions. [2022-11-25 17:04:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-25 17:04:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.9705882352941178) internal successors, (101), 19 states have internal predecessors, (101), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-11-25 17:04:54,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:54,364 INFO L225 Difference]: With dead ends: 227 [2022-11-25 17:04:54,364 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:04:54,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=731, Invalid=1819, Unknown=0, NotChecked=0, Total=2550 [2022-11-25 17:04:54,366 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 91 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:54,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 229 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:04:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:04:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:04:54,367 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 17:04:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:04:54,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2022-11-25 17:04:54,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:54,368 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:04:54,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.9705882352941178) internal successors, (101), 19 states have internal predecessors, (101), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:04:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:04:54,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:04:54,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-25 17:04:54,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-25 17:04:54,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 17:04:54,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 17:04:54,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 17:04:54,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 17:04:54,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 17:04:54,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 17:04:54,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:04:54,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:04:55,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-25 17:04:55,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:04:55,560 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:04:55,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-25 17:04:55,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:04:55,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:04:55,561 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-25 17:04:55,561 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-25 17:04:55,562 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~a~0#1| 15) (= |ULTIMATE.start_main_~b~0#1| 0) (<= 15 |ULTIMATE.start_main_~a~0#1|)) [2022-11-25 17:04:55,562 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-25 17:04:55,562 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-25 17:04:55,562 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-25 17:04:55,563 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-11-25 17:04:55,563 INFO L899 garLoopResultBuilder]: For program point sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-25 17:04:55,563 INFO L899 garLoopResultBuilder]: For program point sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-25 17:04:55,563 INFO L899 garLoopResultBuilder]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2022-11-25 17:04:55,563 INFO L899 garLoopResultBuilder]: For program point sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,564 INFO L899 garLoopResultBuilder]: For program point sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,564 INFO L899 garLoopResultBuilder]: For program point sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,564 INFO L899 garLoopResultBuilder]: For program point sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,564 INFO L902 garLoopResultBuilder]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2022-11-25 17:04:55,564 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,565 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,565 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-25 17:04:55,565 INFO L899 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,565 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 10) no Hoare annotation was computed. [2022-11-25 17:04:55,565 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-25 17:04:55,566 INFO L899 garLoopResultBuilder]: For program point L9-3(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,567 INFO L895 garLoopResultBuilder]: At program point L9-4(line 9) the Hoare annotation is: (let ((.cse0 (not (<= 1 |sum_#in~m|))) (.cse2 (not (<= 0 |sum_#in~n|))) (.cse1 (<= 1 sum_~m))) (and (or .cse0 (not (<= |sum_#in~n| 11)) (and (<= sum_~m 4) .cse1 (<= 11 sum_~n) (<= sum_~n 11)) (not (<= |sum_#in~m| 4)) (not (<= 11 |sum_#in~n|))) (or (and (<= sum_~n 15) (<= 15 sum_~n) (= sum_~m 0)) (not (= |sum_#in~m| 0)) (not (<= 15 |sum_#in~n|)) (not (<= |sum_#in~n| 15))) (or .cse0 (not (<= |sum_#in~m| 9)) (not (<= |sum_#in~n| 6)) (not (<= 6 |sum_#in~n|)) (and .cse1 (<= sum_~m 9) (<= 6 sum_~n) (<= sum_~n 6))) (or .cse0 (not (<= |sum_#in~m| 6)) (not (<= 9 |sum_#in~n|)) (not (<= |sum_#in~n| 9)) (and (<= sum_~n 9) .cse1 (<= sum_~m 6) (<= 9 sum_~n))) (or .cse0 (and (<= sum_~m 2) (<= sum_~n 13) .cse1 (<= 13 sum_~n)) (not (<= |sum_#in~n| 13)) (not (<= |sum_#in~m| 2)) (not (<= 13 |sum_#in~n|))) (or .cse0 (not (<= |sum_#in~m| 7)) (not (<= 8 |sum_#in~n|)) (and (<= 8 sum_~n) (<= sum_~n 8) .cse1 (<= sum_~m 7)) (not (<= |sum_#in~n| 8))) (or .cse0 (not (<= |sum_#in~n| 5)) (not (<= |sum_#in~m| 10)) (and (<= 5 sum_~n) (<= sum_~n 5) .cse1 (<= sum_~m 10)) (not (<= 5 |sum_#in~n|))) (or .cse0 (not (<= |sum_#in~m| 15)) (not (<= |sum_#in~n| 0)) .cse2) (or .cse0 (not (<= |sum_#in~m| 3)) (not (<= |sum_#in~n| 12)) (and (<= sum_~m 3) .cse1 (<= sum_~n 12) (<= 12 sum_~n)) (not (<= 12 |sum_#in~n|))) (or .cse0 (and (<= sum_~n 2) .cse1 (<= sum_~m 13) (< 1 sum_~n)) (not (< 1 |sum_#in~n|)) (not (<= |sum_#in~n| 2)) (not (<= |sum_#in~m| 13))) (or .cse0 (not (<= |sum_#in~n| 10)) (not (<= |sum_#in~m| 5)) (not (<= 10 |sum_#in~n|)) (and .cse1 (<= 10 sum_~n) (<= sum_~n 10) (<= sum_~m 5))) (or .cse0 (not (<= |sum_#in~n| 3)) (not (< 2 |sum_#in~n|)) (and (< 2 sum_~n) (<= sum_~n 3) .cse1 (<= sum_~m 12)) (not (<= |sum_#in~m| 12))) (or .cse0 (not (<= |sum_#in~m| 11)) (and (< 3 sum_~n) (<= sum_~n 4) .cse1 (<= sum_~m 11)) (not (<= |sum_#in~n| 4)) (not (< 3 |sum_#in~n|))) (or .cse0 (not (<= |sum_#in~m| 1)) (not (<= |sum_#in~n| 14)) (and .cse1 (<= sum_~n 14) (<= sum_~m 1) (<= 14 sum_~n)) (not (<= 14 |sum_#in~n|))) (or .cse0 (and (<= 7 sum_~n) .cse1 (<= sum_~m 8) (<= sum_~n 7)) (not (<= 7 |sum_#in~n|)) (not (<= |sum_#in~n| 7)) (not (<= |sum_#in~m| 8))) (or .cse0 .cse2 (and (<= sum_~m 14) (<= sum_~n 1) .cse1 (< 0 sum_~n)) (not (<= |sum_#in~n| 1)) (not (<= |sum_#in~m| 14))))) [2022-11-25 17:04:55,567 INFO L899 garLoopResultBuilder]: For program point L9-5(line 9) no Hoare annotation was computed. [2022-11-25 17:04:55,568 INFO L899 garLoopResultBuilder]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2022-11-25 17:04:55,572 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1] [2022-11-25 17:04:55,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:04:55,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:04:55 BoogieIcfgContainer [2022-11-25 17:04:55,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:04:55,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:04:55,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:04:55,580 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:04:55,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:31" (3/4) ... [2022-11-25 17:04:55,584 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:04:55,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2022-11-25 17:04:55,597 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-25 17:04:55,597 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 17:04:55,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:04:55,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:04:55,657 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:04:55,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:04:55,658 INFO L158 Benchmark]: Toolchain (without parser) took 25428.14ms. Allocated memory was 125.8MB in the beginning and 272.6MB in the end (delta: 146.8MB). Free memory was 87.6MB in the beginning and 222.7MB in the end (delta: -135.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-25 17:04:55,661 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:04:55,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.83ms. Allocated memory is still 125.8MB. Free memory was 87.1MB in the beginning and 77.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:04:55,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.28ms. Allocated memory is still 125.8MB. Free memory was 77.3MB in the beginning and 76.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:04:55,663 INFO L158 Benchmark]: Boogie Preprocessor took 37.22ms. Allocated memory is still 125.8MB. Free memory was 76.1MB in the beginning and 75.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:04:55,664 INFO L158 Benchmark]: RCFGBuilder took 436.50ms. Allocated memory is still 125.8MB. Free memory was 75.0MB in the beginning and 64.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:04:55,666 INFO L158 Benchmark]: TraceAbstraction took 24531.63ms. Allocated memory was 125.8MB in the beginning and 272.6MB in the end (delta: 146.8MB). Free memory was 64.0MB in the beginning and 225.9MB in the end (delta: -161.8MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. [2022-11-25 17:04:55,666 INFO L158 Benchmark]: Witness Printer took 77.21ms. Allocated memory is still 272.6MB. Free memory was 225.9MB in the beginning and 222.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:04:55,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.83ms. Allocated memory is still 125.8MB. Free memory was 87.1MB in the beginning and 77.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.28ms. Allocated memory is still 125.8MB. Free memory was 77.3MB in the beginning and 76.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.22ms. Allocated memory is still 125.8MB. Free memory was 76.1MB in the beginning and 75.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 436.50ms. Allocated memory is still 125.8MB. Free memory was 75.0MB in the beginning and 64.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 24531.63ms. Allocated memory was 125.8MB in the beginning and 272.6MB in the end (delta: 146.8MB). Free memory was 64.0MB in the beginning and 225.9MB in the end (delta: -161.8MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. * Witness Printer took 77.21ms. Allocated memory is still 272.6MB. Free memory was 225.9MB in the beginning and 222.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 24.4s, OverallIterations: 14, TraceHistogramMax: 32, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3634 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3617 mSDsluCounter, 3188 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2787 mSDsCounter, 748 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3362 IncrementalHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 748 mSolverCounterUnsat, 401 mSDtfsCounter, 3362 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1216 GetRequests, 721 SyntacticMatches, 14 SemanticMatches, 481 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8230 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=12, InterpolantAutomatonStates: 311, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 77 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 65 PreInvPairs, 65 NumberOfFragments, 472 HoareAnnotationTreeSize, 65 FomulaSimplifications, 682 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1214 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1341 NumberOfCodeBlocks, 1278 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1686 ConstructedInterpolants, 0 QuantifiedInterpolants, 4372 SizeOfPredicates, 58 NumberOfNonLiveVariables, 1102 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 30 InterpolantComputations, 7 PerfectInterpolantSequences, 4891/10256 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:04:55,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e160c961-4abe-421c-8406-de7924563f35/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