./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/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_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/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_56e386df-2298-4e92-b9c5-a9a806468b8d/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 eb589a592aff310a2662d7a22b89559cebd75929901bc5e2cc7816fe45d47c92 --- 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 15:44:46,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:44:46,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:44:46,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:44:46,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:44:46,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:44:46,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:44:46,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:44:46,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:44:46,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:44:46,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:44:46,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:44:46,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:44:46,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:44:46,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:44:46,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:44:46,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:44:46,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:44:46,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:44:46,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:44:46,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:44:46,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:44:46,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:44:46,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:44:46,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:44:46,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:44:46,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:44:46,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:44:46,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:44:46,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:44:46,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:44:46,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:44:46,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:44:46,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:44:46,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:44:46,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:44:46,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:44:46,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:44:46,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:44:46,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:44:46,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:44:46,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:44:46,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:44:46,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:44:46,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:44:46,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:44:46,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:44:46,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:44:46,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:44:46,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:44:46,616 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:44:46,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:44:46,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:44:46,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:44:46,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:44:46,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:44:46,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:44:46,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:44:46,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:44:46,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:44:46,620 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:44:46,620 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:44:46,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:44:46,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:44:46,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:44:46,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:44:46,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:44:46,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:44:46,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:44:46,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:44:46,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:44:46,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:44:46,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:44:46,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:44:46,661 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:44:46,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:44:46,662 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:44:46,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:44:46,662 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_56e386df-2298-4e92-b9c5-a9a806468b8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb589a592aff310a2662d7a22b89559cebd75929901bc5e2cc7816fe45d47c92 [2022-11-25 15:44:46,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:44:47,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:44:47,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:44:47,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:44:47,036 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:44:47,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c [2022-11-25 15:44:50,137 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:44:50,331 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:44:50,331 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength.c [2022-11-25 15:44:50,338 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/data/1108f628d/f922643f6fa649f9af2aa488a9db2409/FLAGdeb885c00 [2022-11-25 15:44:50,353 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/data/1108f628d/f922643f6fa649f9af2aa488a9db2409 [2022-11-25 15:44:50,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:44:50,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:44:50,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:44:50,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:44:50,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:44:50,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508223f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50, skipping insertion in model container [2022-11-25 15:44:50,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:44:50,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:44:50,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:44:50,634 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:44:50,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:44:50,670 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:44:50,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50 WrapperNode [2022-11-25 15:44:50,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:44:50,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:44:50,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:44:50,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:44:50,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,722 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-11-25 15:44:50,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:44:50,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:44:50,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:44:50,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:44:50,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:44:50,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:44:50,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:44:50,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:44:50,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (1/1) ... [2022-11-25 15:44:50,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:44:50,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:50,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:44:50,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:44:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:44:50,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:44:50,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:44:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:44:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:44:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:44:50,983 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:44:50,985 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:44:51,244 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:44:51,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:44:51,252 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 15:44:51,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:51 BoogieIcfgContainer [2022-11-25 15:44:51,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:44:51,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:44:51,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:44:51,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:44:51,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:44:50" (1/3) ... [2022-11-25 15:44:51,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37556742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:44:51, skipping insertion in model container [2022-11-25 15:44:51,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:50" (2/3) ... [2022-11-25 15:44:51,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37556742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:44:51, skipping insertion in model container [2022-11-25 15:44:51,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:51" (3/3) ... [2022-11-25 15:44:51,292 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength.c [2022-11-25 15:44:51,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:44:51,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 15:44:51,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:44:51,483 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;@490f86c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:44:51,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:44:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 15:44:51,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:51,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:44:51,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:51,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:51,531 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-11-25 15:44:51,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:51,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580718292] [2022-11-25 15:44:51,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:51,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:51,895 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 15:44:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:51,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580718292] [2022-11-25 15:44:51,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580718292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:51,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:51,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:44:51,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271126689] [2022-11-25 15:44:51,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:51,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:44:51,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:44:51,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:44:51,986 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 15:44:52,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:52,123 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2022-11-25 15:44:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:44:52,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 15:44:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:52,136 INFO L225 Difference]: With dead ends: 101 [2022-11-25 15:44:52,136 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 15:44:52,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:44:52,144 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 62 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:52,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 65 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:44:52,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 15:44:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 26. [2022-11-25 15:44:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 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 15:44:52,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-25 15:44:52,185 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 6 [2022-11-25 15:44:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:52,186 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-25 15:44:52,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 15:44:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-25 15:44:52,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 15:44:52,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:52,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:52,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:44:52,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:52,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:52,190 INFO L85 PathProgramCache]: Analyzing trace with hash 269484748, now seen corresponding path program 1 times [2022-11-25 15:44:52,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:52,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908369505] [2022-11-25 15:44:52,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:52,289 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 15:44:52,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:52,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908369505] [2022-11-25 15:44:52,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908369505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:52,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:52,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:44:52,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143179988] [2022-11-25 15:44:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:52,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:44:52,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:52,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:44:52,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:44:52,296 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15:44:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:52,354 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2022-11-25 15:44:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:44:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 15:44:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:52,356 INFO L225 Difference]: With dead ends: 40 [2022-11-25 15:44:52,356 INFO L226 Difference]: Without dead ends: 38 [2022-11-25 15:44:52,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:44:52,359 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:52,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:44:52,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-25 15:44:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2022-11-25 15:44:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 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 15:44:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-11-25 15:44:52,368 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 8 [2022-11-25 15:44:52,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:52,368 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-25 15:44:52,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15:44:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-11-25 15:44:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 15:44:52,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:52,370 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:52,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:44:52,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:52,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1131599168, now seen corresponding path program 1 times [2022-11-25 15:44:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:52,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198752620] [2022-11-25 15:44:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:52,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:52,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:44:52,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:52,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198752620] [2022-11-25 15:44:52,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198752620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:52,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:52,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:44:52,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619794934] [2022-11-25 15:44:52,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:52,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:44:52,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:52,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:44:52,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:44:52,485 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 15:44:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:52,532 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-11-25 15:44:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:44:52,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 15:44:52,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:52,535 INFO L225 Difference]: With dead ends: 53 [2022-11-25 15:44:52,535 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 15:44:52,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:44:52,537 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:52,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 58 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:44:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 15:44:52,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2022-11-25 15:44:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 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 15:44:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-25 15:44:52,547 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 13 [2022-11-25 15:44:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:52,548 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-25 15:44:52,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 15:44:52,548 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-25 15:44:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 15:44:52,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:52,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:52,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:44:52,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:52,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash 804002367, now seen corresponding path program 1 times [2022-11-25 15:44:52,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:52,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683272016] [2022-11-25 15:44:52,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:52,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:52,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:52,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:52,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683272016] [2022-11-25 15:44:52,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683272016] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773328830] [2022-11-25 15:44:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:52,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:52,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:52,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:44:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:52,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:44:52,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:52,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:52,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773328830] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:52,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:52,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-25 15:44:52,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034064931] [2022-11-25 15:44:52,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:52,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:44:52,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:44:52,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:44:52,851 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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 15:44:52,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:52,953 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2022-11-25 15:44:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:44:52,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-25 15:44:52,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:52,955 INFO L225 Difference]: With dead ends: 69 [2022-11-25 15:44:52,955 INFO L226 Difference]: Without dead ends: 60 [2022-11-25 15:44:52,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:44:52,957 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 56 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:52,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 101 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:44:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-25 15:44:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-11-25 15:44:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 49 states have internal predecessors, (58), 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 15:44:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-25 15:44:52,965 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 15 [2022-11-25 15:44:52,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:52,965 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-25 15:44:52,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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 15:44:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-25 15:44:52,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 15:44:52,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:52,967 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 15:44:52,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:44:53,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:53,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:53,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash 838475520, now seen corresponding path program 1 times [2022-11-25 15:44:53,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:53,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545520120] [2022-11-25 15:44:53,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:53,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:53,369 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 15:44:53,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:53,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545520120] [2022-11-25 15:44:53,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545520120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:53,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914638359] [2022-11-25 15:44:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:53,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:53,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:53,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:44:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:53,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:44:53,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:53,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:53,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914638359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:53,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:53,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-25 15:44:53,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726872353] [2022-11-25 15:44:53,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:53,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:44:53,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:44:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:44:53,632 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:53,785 INFO L93 Difference]: Finished difference Result 88 states and 101 transitions. [2022-11-25 15:44:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:44:53,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-25 15:44:53,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:53,786 INFO L225 Difference]: With dead ends: 88 [2022-11-25 15:44:53,787 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 15:44:53,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:44:53,788 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 56 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:53,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:44:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 15:44:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2022-11-25 15:44:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 48 states have internal predecessors, (54), 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 15:44:53,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-25 15:44:53,797 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 15 [2022-11-25 15:44:53,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:53,797 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-25 15:44:53,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-25 15:44:53,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 15:44:53,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:53,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:53,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:54,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:54,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash -140543044, now seen corresponding path program 1 times [2022-11-25 15:44:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:54,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11651779] [2022-11-25 15:44:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:54,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:44:54,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:54,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11651779] [2022-11-25 15:44:54,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11651779] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:54,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561204192] [2022-11-25 15:44:54,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:54,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:54,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:54,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:54,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:44:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:54,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 15:44:54,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:54,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:44:54,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561204192] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:54,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:54,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 15 [2022-11-25 15:44:54,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435738257] [2022-11-25 15:44:54,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:54,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 15:44:54,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:54,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 15:44:54,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:44:54,419 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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 15:44:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:54,775 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-11-25 15:44:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 15:44:54,775 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 15:44:54,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:54,776 INFO L225 Difference]: With dead ends: 87 [2022-11-25 15:44:54,776 INFO L226 Difference]: Without dead ends: 52 [2022-11-25 15:44:54,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-11-25 15:44:54,778 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 152 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:54,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 91 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:44:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-25 15:44:54,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2022-11-25 15:44:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.146341463414634) internal successors, (47), 44 states have internal predecessors, (47), 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 15:44:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-11-25 15:44:54,785 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 17 [2022-11-25 15:44:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:54,785 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-11-25 15:44:54,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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 15:44:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-11-25 15:44:54,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 15:44:54,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:54,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 15:44:54,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 15:44:54,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:54,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:54,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:54,993 INFO L85 PathProgramCache]: Analyzing trace with hash -745131094, now seen corresponding path program 1 times [2022-11-25 15:44:54,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:54,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930668499] [2022-11-25 15:44:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:44:55,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:55,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930668499] [2022-11-25 15:44:55,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930668499] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:55,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584657683] [2022-11-25 15:44:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:55,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:55,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:55,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:55,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:44:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:55,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:44:55,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:44:55,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:44:55,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584657683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:55,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:55,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 15:44:55,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974109460] [2022-11-25 15:44:55,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:55,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:44:55,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:44:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:44:55,274 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:55,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:55,384 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2022-11-25 15:44:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:44:55,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-25 15:44:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:55,387 INFO L225 Difference]: With dead ends: 103 [2022-11-25 15:44:55,388 INFO L226 Difference]: Without dead ends: 102 [2022-11-25 15:44:55,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:44:55,389 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 88 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:55,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 128 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:44:55,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-25 15:44:55,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 57. [2022-11-25 15:44:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.169811320754717) internal successors, (62), 56 states have internal predecessors, (62), 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 15:44:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-11-25 15:44:55,399 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 29 [2022-11-25 15:44:55,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:55,399 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-11-25 15:44:55,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-11-25 15:44:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 15:44:55,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:55,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 15:44:55,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:55,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 15:44:55,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:55,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1138935030, now seen corresponding path program 1 times [2022-11-25 15:44:55,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:55,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232408475] [2022-11-25 15:44:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:55,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:44:55,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:55,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232408475] [2022-11-25 15:44:55,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232408475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:55,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79086528] [2022-11-25 15:44:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:55,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:55,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:55,879 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:55,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:44:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:55,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 15:44:55,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:44:56,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:44:56,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79086528] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:56,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:56,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 21 [2022-11-25 15:44:56,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114408840] [2022-11-25 15:44:56,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:56,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 15:44:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:56,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 15:44:56,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-11-25 15:44:56,263 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 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 15:44:56,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:56,820 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2022-11-25 15:44:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 15:44:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-25 15:44:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:56,824 INFO L225 Difference]: With dead ends: 126 [2022-11-25 15:44:56,824 INFO L226 Difference]: Without dead ends: 90 [2022-11-25 15:44:56,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 15:44:56,826 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 133 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:56,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 138 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:44:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-25 15:44:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2022-11-25 15:44:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 81 states have internal predecessors, (90), 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 15:44:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-11-25 15:44:56,846 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 31 [2022-11-25 15:44:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:56,846 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-11-25 15:44:56,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 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 15:44:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-11-25 15:44:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 15:44:56,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:56,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:56,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:57,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 15:44:57,058 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:57,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:57,058 INFO L85 PathProgramCache]: Analyzing trace with hash -941132989, now seen corresponding path program 1 times [2022-11-25 15:44:57,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:57,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523591419] [2022-11-25 15:44:57,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:57,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:57,131 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 15:44:57,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:57,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523591419] [2022-11-25 15:44:57,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523591419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:57,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:57,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:44:57,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029627253] [2022-11-25 15:44:57,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:57,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:44:57,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:57,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:44:57,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:44:57,134 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:57,174 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2022-11-25 15:44:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:44:57,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-25 15:44:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:57,176 INFO L225 Difference]: With dead ends: 89 [2022-11-25 15:44:57,176 INFO L226 Difference]: Without dead ends: 87 [2022-11-25 15:44:57,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:44:57,177 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:57,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 42 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:44:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-25 15:44:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-25 15:44:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.144578313253012) internal successors, (95), 86 states have internal predecessors, (95), 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 15:44:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2022-11-25 15:44:57,187 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 41 [2022-11-25 15:44:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:57,188 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2022-11-25 15:44:57,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:44:57,188 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2022-11-25 15:44:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 15:44:57,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:57,189 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 15:44:57,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:44:57,190 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:57,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:57,191 INFO L85 PathProgramCache]: Analyzing trace with hash 909367990, now seen corresponding path program 2 times [2022-11-25 15:44:57,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:57,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823725586] [2022-11-25 15:44:57,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:57,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 15:44:57,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:57,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823725586] [2022-11-25 15:44:57,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823725586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:57,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386313528] [2022-11-25 15:44:57,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:44:57,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:57,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:57,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:57,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:44:57,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:44:57,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:44:57,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:44:57,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 15:44:57,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 15:44:57,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386313528] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:57,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:57,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 16 [2022-11-25 15:44:57,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664181825] [2022-11-25 15:44:57,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:57,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 15:44:57,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:57,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 15:44:57,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:44:57,628 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 17 states, 16 states have (on average 3.6875) internal successors, (59), 17 states have internal predecessors, (59), 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 15:44:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:58,002 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2022-11-25 15:44:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 15:44:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.6875) internal successors, (59), 17 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-25 15:44:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:58,003 INFO L225 Difference]: With dead ends: 101 [2022-11-25 15:44:58,004 INFO L226 Difference]: Without dead ends: 100 [2022-11-25 15:44:58,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=877, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 15:44:58,005 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 210 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:58,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 90 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:44:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-25 15:44:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 64. [2022-11-25 15:44:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 61 states have (on average 1.098360655737705) internal successors, (67), 63 states have internal predecessors, (67), 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 15:44:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2022-11-25 15:44:58,017 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 41 [2022-11-25 15:44:58,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:58,017 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2022-11-25 15:44:58,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.6875) internal successors, (59), 17 states have internal predecessors, (59), 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 15:44:58,018 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2022-11-25 15:44:58,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 15:44:58,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:58,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:58,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:58,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:44:58,224 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash -985384863, now seen corresponding path program 1 times [2022-11-25 15:44:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:58,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375741089] [2022-11-25 15:44:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:58,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:44:58,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:58,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375741089] [2022-11-25 15:44:58,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375741089] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:58,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912097735] [2022-11-25 15:44:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:58,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:58,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:58,485 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:58,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:44:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:58,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:44:58,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:44:58,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:44:58,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912097735] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:58,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:44:58,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 20 [2022-11-25 15:44:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912141260] [2022-11-25 15:44:58,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:58,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 15:44:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 15:44:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-25 15:44:58,792 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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 15:44:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:58,999 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2022-11-25 15:44:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 15:44:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-25 15:44:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:59,001 INFO L225 Difference]: With dead ends: 124 [2022-11-25 15:44:59,001 INFO L226 Difference]: Without dead ends: 110 [2022-11-25 15:44:59,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=494, Unknown=0, NotChecked=0, Total=702 [2022-11-25 15:44:59,003 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 75 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:59,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 91 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:44:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-25 15:44:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-11-25 15:44:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.0841121495327102) internal successors, (116), 109 states have internal predecessors, (116), 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 15:44:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2022-11-25 15:44:59,017 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 46 [2022-11-25 15:44:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:59,018 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2022-11-25 15:44:59,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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 15:44:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2022-11-25 15:44:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 15:44:59,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:59,020 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-11-25 15:44:59,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:59,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 15:44:59,226 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:44:59,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:59,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1158365178, now seen corresponding path program 2 times [2022-11-25 15:44:59,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:44:59,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377946754] [2022-11-25 15:44:59,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:59,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:44:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 302 proven. 25 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-25 15:44:59,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:44:59,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377946754] [2022-11-25 15:44:59,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377946754] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:44:59,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922335878] [2022-11-25 15:44:59,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:44:59,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:44:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:44:59,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:44:59,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:44:59,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:44:59,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:44:59,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:44:59,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-25 15:44:59,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:59,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922335878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:59,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:44:59,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 16 [2022-11-25 15:44:59,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517144201] [2022-11-25 15:44:59,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:59,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:44:59,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:44:59,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:44:59,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:44:59,968 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 15:45:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:00,008 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2022-11-25 15:45:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:45:00,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-11-25 15:45:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:00,009 INFO L225 Difference]: With dead ends: 110 [2022-11-25 15:45:00,010 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 15:45:00,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:45:00,011 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:00,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:45:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 15:45:00,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-25 15:45:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 107 states have (on average 1.074766355140187) internal successors, (115), 108 states have internal predecessors, (115), 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 15:45:00,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2022-11-25 15:45:00,026 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 95 [2022-11-25 15:45:00,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:00,026 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2022-11-25 15:45:00,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 15:45:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2022-11-25 15:45:00,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 15:45:00,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:00,028 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:00,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:00,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:45:00,235 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:45:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:00,235 INFO L85 PathProgramCache]: Analyzing trace with hash 422353761, now seen corresponding path program 2 times [2022-11-25 15:45:00,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:45:00,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902862289] [2022-11-25 15:45:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:00,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:45:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 308 proven. 25 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-25 15:45:00,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:45:00,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902862289] [2022-11-25 15:45:00,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902862289] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:45:00,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420478872] [2022-11-25 15:45:00,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:45:00,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:45:00,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:45:00,871 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:45:00,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 15:45:01,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:45:01,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:45:01,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 15:45:01,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 285 proven. 42 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-11-25 15:45:01,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:45:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 285 proven. 42 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-11-25 15:45:01,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420478872] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:45:01,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:45:01,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2022-11-25 15:45:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030793147] [2022-11-25 15:45:01,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:45:01,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 15:45:01,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:45:01,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 15:45:01,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-11-25 15:45:01,533 INFO L87 Difference]: Start difference. First operand 109 states and 115 transitions. Second operand has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 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 15:45:02,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:02,383 INFO L93 Difference]: Finished difference Result 204 states and 218 transitions. [2022-11-25 15:45:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 15:45:02,384 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-11-25 15:45:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:02,385 INFO L225 Difference]: With dead ends: 204 [2022-11-25 15:45:02,385 INFO L226 Difference]: Without dead ends: 140 [2022-11-25 15:45:02,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 191 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=375, Invalid=1881, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 15:45:02,388 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 86 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:02,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 94 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:45:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-25 15:45:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2022-11-25 15:45:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.065040650406504) internal successors, (131), 124 states have internal predecessors, (131), 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 15:45:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 131 transitions. [2022-11-25 15:45:02,412 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 131 transitions. Word has length 106 [2022-11-25 15:45:02,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:02,412 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 131 transitions. [2022-11-25 15:45:02,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 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 15:45:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 131 transitions. [2022-11-25 15:45:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 15:45:02,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:02,422 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:02,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:02,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:45:02,631 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:45:02,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:02,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1222319201, now seen corresponding path program 3 times [2022-11-25 15:45:02,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:45:02,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451296394] [2022-11-25 15:45:02,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:02,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:45:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 336 proven. 64 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-11-25 15:45:03,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:45:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451296394] [2022-11-25 15:45:03,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451296394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:45:03,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239829006] [2022-11-25 15:45:03,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:45:03,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:45:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:45:03,283 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:45:03,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 15:45:03,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:45:03,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:45:03,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:45:03,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-11-25 15:45:03,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:03,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239829006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:03,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:45:03,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-11-25 15:45:03,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449712124] [2022-11-25 15:45:03,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:03,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:45:03,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:45:03,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:45:03,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:45:03,438 INFO L87 Difference]: Start difference. First operand 125 states and 131 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 15:45:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:03,480 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2022-11-25 15:45:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:45:03,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-11-25 15:45:03,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:03,481 INFO L225 Difference]: With dead ends: 125 [2022-11-25 15:45:03,481 INFO L226 Difference]: Without dead ends: 124 [2022-11-25 15:45:03,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:45:03,482 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:03,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:45:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-25 15:45:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-25 15:45:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.056910569105691) internal successors, (130), 123 states have internal predecessors, (130), 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 15:45:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2022-11-25 15:45:03,524 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 122 [2022-11-25 15:45:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:03,526 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2022-11-25 15:45:03,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 15:45:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2022-11-25 15:45:03,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 15:45:03,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:03,529 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:03,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:03,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:45:03,735 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:45:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash -762810342, now seen corresponding path program 1 times [2022-11-25 15:45:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:45:03,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685025075] [2022-11-25 15:45:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:45:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-11-25 15:45:03,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:45:03,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685025075] [2022-11-25 15:45:03,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685025075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:03,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:03,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:45:03,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55446680] [2022-11-25 15:45:03,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:03,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:45:03,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:45:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:45:03,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:45:03,902 INFO L87 Difference]: Start difference. First operand 124 states and 130 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:45:03,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:03,938 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2022-11-25 15:45:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:45:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-11-25 15:45:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:03,939 INFO L225 Difference]: With dead ends: 124 [2022-11-25 15:45:03,939 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:45:03,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:45:03,940 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:03,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:45:03,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:45:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:45:03,942 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 15:45:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:45:03,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2022-11-25 15:45:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:03,942 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:45:03,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:45:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:45:03,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:45:03,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 15:45:03,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 15:45:03,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 15:45:03,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 15:45:03,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 15:45:03,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 15:45:03,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 15:45:03,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 15:45:04,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 15:45:04,689 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-25 15:45:04,689 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 15:45:04,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-11-25 15:45:04,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 15:45:04,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-25 15:45:04,690 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-25 15:45:04,691 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 29) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 99) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (not (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|)) (<= 1 |ULTIMATE.start_foo_~i~0#1|)) [2022-11-25 15:45:04,691 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 29) no Hoare annotation was computed. [2022-11-25 15:45:04,691 INFO L895 garLoopResultBuilder]: At program point L17(lines 12 18) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_main_~i~1#1| 100)) (.cse2 (not (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|))) (.cse1 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (.cse3 (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|))) (or (and (<= |ULTIMATE.start_foo_~i~0#1| 98) .cse0 (<= 2 |ULTIMATE.start_foo_~size#1|) .cse1 .cse2 .cse3) (and .cse0 (< |ULTIMATE.start_foo_~i~0#1| 2147483647) .cse1 .cse2 (<= 3 |ULTIMATE.start_main_~i~1#1|) .cse3) (and (= |ULTIMATE.start_main_~i~1#1| 0) (= |ULTIMATE.start_foo_~i~0#1| 0) .cse3) (and (<= |ULTIMATE.start_foo_~i~0#1| 1) (<= |ULTIMATE.start_main_~i~1#1| 1) .cse1 (<= 1 |ULTIMATE.start_foo_~i~0#1|) .cse3))) [2022-11-25 15:45:04,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 15:45:04,691 INFO L902 garLoopResultBuilder]: At program point L30(lines 20 31) the Hoare annotation is: true [2022-11-25 15:45:04,691 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 28) no Hoare annotation was computed. [2022-11-25 15:45:04,691 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-11-25 15:45:04,691 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-11-25 15:45:04,692 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-11-25 15:45:04,692 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 24) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_foo_~i~0#1|))) (or (and (<= |ULTIMATE.start_foo_~size#1| |ULTIMATE.start_foo_~i~0#1|) (<= |ULTIMATE.start_main_~i~1#1| 1) (<= 1 |ULTIMATE.start_main_~i~1#1|) (= |ULTIMATE.start_foo_~i~0#1| 0)) (= |ULTIMATE.start_main_~i~1#1| 0) (and (<= 2 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_foo_~size#1| 1) (<= |ULTIMATE.start_foo_~i~0#1| 1) .cse0) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 99) (not (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|)) (<= 3 |ULTIMATE.start_main_~i~1#1|) .cse0))) [2022-11-25 15:45:04,692 INFO L899 garLoopResultBuilder]: For program point L22-6(lines 22 24) no Hoare annotation was computed. [2022-11-25 15:45:04,692 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2022-11-25 15:45:04,692 INFO L899 garLoopResultBuilder]: For program point L14-3(line 14) no Hoare annotation was computed. [2022-11-25 15:45:04,692 INFO L899 garLoopResultBuilder]: For program point L14-4(line 14) no Hoare annotation was computed. [2022-11-25 15:45:04,692 INFO L895 garLoopResultBuilder]: At program point L14-5(lines 14 16) the Hoare annotation is: (let ((.cse4 (<= 3 |ULTIMATE.start_main_~i~1#1|)) (.cse0 (<= |ULTIMATE.start_foo_~size#1| 2)) (.cse3 (= |ULTIMATE.start_foo_~i~0#1| 0)) (.cse5 (<= |ULTIMATE.start_main_~i~1#1| 1)) (.cse1 (<= 1 |ULTIMATE.start_foo_~i~0#1|)) (.cse2 (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|))) (or (and (<= |ULTIMATE.start_foo_~i~0#1| 98) .cse0 (<= 2 |ULTIMATE.start_foo_~size#1|) .cse1 .cse2) (and (<= |ULTIMATE.start_main_~i~1#1| 99) .cse3 .cse4 .cse2) (and .cse5 .cse3 (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|) .cse2) (and (= |ULTIMATE.start_foo_~size#1| 0) .cse3 .cse2) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 99) .cse4 .cse1 .cse2) (and .cse0 .cse3 .cse2 (<= (+ |ULTIMATE.start_foo_~i~0#1| 2) |ULTIMATE.start_main_~i~1#1|)) (and (<= |ULTIMATE.start_foo_~i~0#1| 1) .cse5 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse1 .cse2))) [2022-11-25 15:45:04,692 INFO L899 garLoopResultBuilder]: For program point L14-6(lines 14 16) no Hoare annotation was computed. [2022-11-25 15:45:04,697 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:04,699 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:45:04,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:45:04 BoogieIcfgContainer [2022-11-25 15:45:04,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:45:04,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:45:04,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:45:04,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:45:04,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:51" (3/4) ... [2022-11-25 15:45:04,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:45:04,733 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 15:45:04,734 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 15:45:04,734 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:45:04,734 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:45:04,775 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:45:04,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:45:04,776 INFO L158 Benchmark]: Toolchain (without parser) took 14418.96ms. Allocated memory was 130.0MB in the beginning and 302.0MB in the end (delta: 172.0MB). Free memory was 65.2MB in the beginning and 139.4MB in the end (delta: -74.2MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2022-11-25 15:45:04,776 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:45:04,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.63ms. Allocated memory was 130.0MB in the beginning and 209.7MB in the end (delta: 79.7MB). Free memory was 65.0MB in the beginning and 172.9MB in the end (delta: -107.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-25 15:45:04,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.63ms. Allocated memory is still 209.7MB. Free memory was 172.9MB in the beginning and 171.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:45:04,778 INFO L158 Benchmark]: Boogie Preprocessor took 53.79ms. Allocated memory is still 209.7MB. Free memory was 171.3MB in the beginning and 170.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:45:04,778 INFO L158 Benchmark]: RCFGBuilder took 476.23ms. Allocated memory is still 209.7MB. Free memory was 170.3MB in the beginning and 159.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:45:04,779 INFO L158 Benchmark]: TraceAbstraction took 13461.64ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 158.2MB in the beginning and 142.5MB in the end (delta: 15.7MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2022-11-25 15:45:04,780 INFO L158 Benchmark]: Witness Printer took 55.98ms. Allocated memory is still 302.0MB. Free memory was 142.5MB in the beginning and 139.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:45:04,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.63ms. Allocated memory was 130.0MB in the beginning and 209.7MB in the end (delta: 79.7MB). Free memory was 65.0MB in the beginning and 172.9MB in the end (delta: -107.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.63ms. Allocated memory is still 209.7MB. Free memory was 172.9MB in the beginning and 171.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.79ms. Allocated memory is still 209.7MB. Free memory was 171.3MB in the beginning and 170.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 476.23ms. Allocated memory is still 209.7MB. Free memory was 170.3MB in the beginning and 159.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13461.64ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 158.2MB in the beginning and 142.5MB in the end (delta: 15.7MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. * Witness Printer took 55.98ms. Allocated memory is still 302.0MB. Free memory was 142.5MB in the beginning and 139.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 15, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 988 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 988 mSDsluCounter, 1101 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 878 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1830 IncrementalHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 223 mSDtfsCounter, 1830 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1007 GetRequests, 740 SyntacticMatches, 18 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1593 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=13, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 181 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 48 NumberOfFragments, 234 HoareAnnotationTreeSize, 5 FomulaSimplifications, 487 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 2516 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 1225 NumberOfCodeBlocks, 1003 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1492 ConstructedInterpolants, 0 QuantifiedInterpolants, 3191 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1284 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 33 InterpolantComputations, 7 PerfectInterpolantSequences, 4484/4953 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((size <= i && i <= 1) && 1 <= i) && i == 0) || i == 0) || (((2 <= i && size <= 1) && i <= 1) && 1 <= i)) || ((((i < 2147483647 && size <= 99) && !(i < size)) && 3 <= i) && 1 <= i) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((((((i <= 98 && i < 100) && 2 <= size) && 1 <= i) && !(i < size)) && i == size) || (((((i < 100 && i < 2147483647) && 1 <= i) && !(i < size)) && 3 <= i) && i == size)) || ((i == 0 && i == 0) && i == size)) || ((((i <= 1 && i <= 1) && 1 <= i) && 1 <= i) && i == size) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((i <= 98 && size <= 2) && 2 <= size) && 1 <= i) && i == size) || (((i <= 99 && i == 0) && 3 <= i) && i == size)) || (((i <= 1 && i == 0) && i < size) && i == size)) || ((size == 0 && i == 0) && i == size)) || ((((i < 2147483647 && size <= 99) && 3 <= i) && 1 <= i) && i == size)) || (((size <= 2 && i == 0) && i == size) && i + 2 <= i)) || ((((i <= 1 && i <= 1) && 1 <= i) && 1 <= i) && i == size) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((i < 2147483647 && size <= 99) && 0 <= i + 2147483648) && !(i < size)) && 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-25 15:45:04,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e386df-2298-4e92-b9c5-a9a806468b8d/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