./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/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_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/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 64bit --witnessprinter.graph.data.programhash cad2c6f6e8ebe2adcd550e4a56b83be37e52f812ae33bfb645236c6925734dbf --- 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 15:32:32,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:32:32,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:32:32,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:32:32,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:32:32,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:32:32,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:32:32,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:32:32,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:32:32,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:32:32,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:32:32,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:32:32,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:32:32,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:32:32,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:32:32,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:32:32,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:32:32,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:32:32,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:32:32,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:32:32,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:32:32,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:32:32,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:32:32,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:32:32,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:32:32,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:32:32,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:32:32,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:32:32,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:32:32,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:32:32,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:32:32,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:32:32,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:32:32,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:32:32,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:32:32,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:32:32,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:32:32,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:32:32,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:32:32,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:32:32,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:32:32,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:32:32,747 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:32:32,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:32:32,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:32:32,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:32:32,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:32:32,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:32:32,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:32:32,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:32:32,750 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:32:32,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:32:32,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:32:32,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:32:32,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:32:32,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:32:32,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:32:32,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:32:32,753 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:32:32,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:32:32,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:32:32,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:32:32,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:32:32,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:32:32,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:32:32,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:32:32,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:32:32,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:32:32,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:32:32,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:32:32,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:32:32,756 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:32:32,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:32:32,757 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:32:32,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:32:32,757 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_7cef2674-e5df-4d74-b415-75493b0e0520/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad2c6f6e8ebe2adcd550e4a56b83be37e52f812ae33bfb645236c6925734dbf [2022-11-25 15:32:33,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:32:33,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:32:33,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:32:33,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:32:33,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:32:33,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c [2022-11-25 15:32:36,216 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:32:36,430 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:32:36,430 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c [2022-11-25 15:32:36,436 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/data/fc994078d/f99a33031a5a4b36bd2a7f1cb7ee9315/FLAG569e1dafc [2022-11-25 15:32:36,451 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/data/fc994078d/f99a33031a5a4b36bd2a7f1cb7ee9315 [2022-11-25 15:32:36,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:32:36,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:32:36,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:32:36,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:32:36,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:32:36,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5406b615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36, skipping insertion in model container [2022-11-25 15:32:36,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:32:36,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:32:36,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:32:36,628 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:32:36,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:32:36,661 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:32:36,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36 WrapperNode [2022-11-25 15:32:36,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:32:36,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:32:36,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:32:36,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:32:36,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,693 INFO L138 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-11-25 15:32:36,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:32:36,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:32:36,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:32:36,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:32:36,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:32:36,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:32:36,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:32:36,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:32:36,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (1/1) ... [2022-11-25 15:32:36,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:32:36,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:36,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:32:36,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:32:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:32:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:32:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:32:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:32:36,874 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:32:36,876 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:32:37,047 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:32:37,053 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:32:37,054 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:32:37,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:32:37 BoogieIcfgContainer [2022-11-25 15:32:37,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:32:37,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:32:37,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:32:37,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:32:37,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:32:36" (1/3) ... [2022-11-25 15:32:37,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a909a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:32:37, skipping insertion in model container [2022-11-25 15:32:37,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:36" (2/3) ... [2022-11-25 15:32:37,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a909a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:32:37, skipping insertion in model container [2022-11-25 15:32:37,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:32:37" (3/3) ... [2022-11-25 15:32:37,073 INFO L112 eAbstractionObserver]: Analyzing ICFG Arrays01-EquivalentConstantIndices-1.c [2022-11-25 15:32:37,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:32:37,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 15:32:37,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:32:37,183 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;@6eb60a32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:32:37,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 15:32:37,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 15:32:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 15:32:37,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:37,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:32:37,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:37,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-11-25 15:32:37,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:37,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722130204] [2022-11-25 15:32:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:37,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:37,446 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 15:32:37,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:37,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722130204] [2022-11-25 15:32:37,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722130204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:32:37,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:32:37,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:32:37,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993411726] [2022-11-25 15:32:37,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:32:37,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:32:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:37,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:32:37,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:32:37,490 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:37,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:37,585 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-11-25 15:32:37,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:32:37,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 15:32:37,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:37,596 INFO L225 Difference]: With dead ends: 34 [2022-11-25 15:32:37,596 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 15:32:37,599 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 15:32:37,603 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:37,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:37,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 15:32:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 15:32:37,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-25 15:32:37,638 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2022-11-25 15:32:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:37,655 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-25 15:32:37,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-25 15:32:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 15:32:37,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:37,657 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 15:32:37,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:32:37,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-11-25 15:32:37,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:37,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855715131] [2022-11-25 15:32:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:37,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:37,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:37,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855715131] [2022-11-25 15:32:37,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855715131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:32:37,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905428820] [2022-11-25 15:32:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:37,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:37,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:37,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:37,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:32:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:38,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:32:38,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:38,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:32:38,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905428820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:32:38,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:32:38,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 15:32:38,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415315631] [2022-11-25 15:32:38,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:32:38,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:32:38,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:38,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:32:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:32:38,102 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:38,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:38,148 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-25 15:32:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:32:38,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 15:32:38,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:38,150 INFO L225 Difference]: With dead ends: 18 [2022-11-25 15:32:38,150 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 15:32:38,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:32:38,152 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:38,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 16 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 15:32:38,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 15:32:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 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 15:32:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-25 15:32:38,158 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2022-11-25 15:32:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:38,159 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-25 15:32:38,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-25 15:32:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 15:32:38,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:38,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:38,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:38,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-25 15:32:38,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1607296535, now seen corresponding path program 1 times [2022-11-25 15:32:38,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502140696] [2022-11-25 15:32:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:38,522 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 15:32:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:38,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502140696] [2022-11-25 15:32:38,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502140696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:32:38,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117122833] [2022-11-25 15:32:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:38,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:38,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:38,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:38,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:32:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:38,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:32:38,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:38,666 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 15:32:38,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:32:38,729 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 15:32:38,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117122833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:32:38,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:32:38,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-25 15:32:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423302322] [2022-11-25 15:32:38,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:32:38,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:32:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:32:38,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:32:38,738 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 15:32:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:38,834 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-25 15:32:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:32:38,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 15:32:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:38,838 INFO L225 Difference]: With dead ends: 29 [2022-11-25 15:32:38,838 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 15:32:38,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:32:38,840 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 37 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 15:32:38,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 37 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 15:32:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 15:32:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-25 15:32:38,845 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2022-11-25 15:32:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:38,846 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-25 15:32:38,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 15:32:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-25 15:32:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 15:32:38,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:38,847 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1] [2022-11-25 15:32:38,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:39,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:39,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:39,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1053425458, now seen corresponding path program 1 times [2022-11-25 15:32:39,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:39,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069262946] [2022-11-25 15:32:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:39,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 15:32:39,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:39,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069262946] [2022-11-25 15:32:39,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069262946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:32:39,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:32:39,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:32:39,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561854910] [2022-11-25 15:32:39,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:32:39,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:32:39,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:39,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:32:39,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:32:39,182 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:39,211 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-25 15:32:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:32:39,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 15:32:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:39,213 INFO L225 Difference]: With dead ends: 22 [2022-11-25 15:32:39,214 INFO L226 Difference]: Without dead ends: 21 [2022-11-25 15:32:39,215 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 15:32:39,219 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:39,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-25 15:32:39,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-25 15:32:39,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:39,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-25 15:32:39,228 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2022-11-25 15:32:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:39,229 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-25 15:32:39,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:39,229 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-25 15:32:39,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 15:32:39,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:39,230 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:39,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:32:39,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:39,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1100938783, now seen corresponding path program 2 times [2022-11-25 15:32:39,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:39,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078783727] [2022-11-25 15:32:39,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:39,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:32:39,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:39,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078783727] [2022-11-25 15:32:39,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078783727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:32:39,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:32:39,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:32:39,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922498226] [2022-11-25 15:32:39,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:32:39,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:32:39,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:39,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:32:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:32:39,315 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:39,331 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-25 15:32:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:32:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 15:32:39,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:39,334 INFO L225 Difference]: With dead ends: 21 [2022-11-25 15:32:39,335 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 15:32:39,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:32:39,337 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:39,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:39,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 15:32:39,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-25 15:32:39,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 15:32:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-25 15:32:39,346 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 18 [2022-11-25 15:32:39,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:39,348 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-25 15:32:39,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-25 15:32:39,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 15:32:39,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:39,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:39,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:32:39,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:39,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:39,353 INFO L85 PathProgramCache]: Analyzing trace with hash -230636033, now seen corresponding path program 1 times [2022-11-25 15:32:39,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:39,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293044853] [2022-11-25 15:32:39,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:39,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:39,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:39,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293044853] [2022-11-25 15:32:39,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293044853] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:32:39,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680170833] [2022-11-25 15:32:39,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:39,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:39,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:39,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:32:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:39,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:32:39,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:39,608 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:39,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:32:39,715 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:39,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680170833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:32:39,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:32:39,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-25 15:32:39,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103931615] [2022-11-25 15:32:39,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:32:39,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 15:32:39,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:39,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 15:32:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:32:39,718 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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 15:32:39,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:39,850 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-25 15:32:39,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 15:32:39,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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) Word has length 19 [2022-11-25 15:32:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:39,852 INFO L225 Difference]: With dead ends: 41 [2022-11-25 15:32:39,852 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 15:32:39,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-11-25 15:32:39,856 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:39,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 40 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 15:32:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-25 15:32:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 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 15:32:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-11-25 15:32:39,872 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 19 [2022-11-25 15:32:39,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:39,875 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-11-25 15:32:39,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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 15:32:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-11-25 15:32:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 15:32:39,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:39,879 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:39,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:40,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:40,084 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:40,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:40,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1713778671, now seen corresponding path program 2 times [2022-11-25 15:32:40,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:40,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552512105] [2022-11-25 15:32:40,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:40,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:40,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552512105] [2022-11-25 15:32:40,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552512105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:32:40,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510445229] [2022-11-25 15:32:40,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:32:40,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:40,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:40,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:40,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:32:40,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:32:40,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:32:40,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 15:32:40,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:40,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:32:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:40,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510445229] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:32:40,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:32:40,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-25 15:32:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942363656] [2022-11-25 15:32:40,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:32:40,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 15:32:40,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 15:32:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 15:32:40,974 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 34 states have internal predecessors, (70), 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 15:32:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:41,328 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-11-25 15:32:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-25 15:32:41,328 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 34 states have internal predecessors, (70), 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 35 [2022-11-25 15:32:41,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:41,329 INFO L225 Difference]: With dead ends: 73 [2022-11-25 15:32:41,329 INFO L226 Difference]: Without dead ends: 68 [2022-11-25 15:32:41,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 15:32:41,331 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 78 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:41,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 55 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:32:41,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-25 15:32:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-25 15:32:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 67 states have internal predecessors, (69), 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 15:32:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2022-11-25 15:32:41,339 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 35 [2022-11-25 15:32:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:41,339 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2022-11-25 15:32:41,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 34 states have internal predecessors, (70), 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 15:32:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2022-11-25 15:32:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 15:32:41,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:41,341 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:41,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:41,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 15:32:41,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:41,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:41,548 INFO L85 PathProgramCache]: Analyzing trace with hash -778345521, now seen corresponding path program 3 times [2022-11-25 15:32:41,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:41,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627102952] [2022-11-25 15:32:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:41,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:42,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:42,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627102952] [2022-11-25 15:32:42,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627102952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:32:42,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440197817] [2022-11-25 15:32:42,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:32:42,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:42,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:42,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:42,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:32:42,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-11-25 15:32:42,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:32:42,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 15:32:42,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:43,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:32:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:44,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440197817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:32:44,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:32:44,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-25 15:32:44,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978829938] [2022-11-25 15:32:44,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:32:44,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-25 15:32:44,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:44,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-25 15:32:44,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-25 15:32:44,215 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 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 15:32:45,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:45,217 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2022-11-25 15:32:45,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-25 15:32:45,220 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 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 67 [2022-11-25 15:32:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:45,221 INFO L225 Difference]: With dead ends: 137 [2022-11-25 15:32:45,221 INFO L226 Difference]: Without dead ends: 132 [2022-11-25 15:32:45,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-11-25 15:32:45,249 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 200 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:45,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 48 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:32:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-25 15:32:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-25 15:32:45,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.015267175572519) internal successors, (133), 131 states have internal predecessors, (133), 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 15:32:45,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2022-11-25 15:32:45,269 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 67 [2022-11-25 15:32:45,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:45,270 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2022-11-25 15:32:45,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 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 15:32:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2022-11-25 15:32:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 15:32:45,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:45,283 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:45,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:45,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 15:32:45,490 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:45,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1339077745, now seen corresponding path program 4 times [2022-11-25 15:32:45,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:45,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166237113] [2022-11-25 15:32:45,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:45,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:48,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:48,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166237113] [2022-11-25 15:32:48,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166237113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:32:48,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512661842] [2022-11-25 15:32:48,587 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 15:32:48,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:48,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:48,588 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:48,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:32:48,730 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 15:32:48,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:32:48,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-25 15:32:48,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:49,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:49,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:32:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:32:52,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512661842] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:32:52,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:32:52,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-25 15:32:52,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611870740] [2022-11-25 15:32:52,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:32:52,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-25 15:32:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:52,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-25 15:32:52,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-25 15:32:52,996 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand has 130 states, 130 states have (on average 2.0153846153846153) internal successors, (262), 130 states have internal predecessors, (262), 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 15:32:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:56,291 INFO L93 Difference]: Finished difference Result 265 states and 298 transitions. [2022-11-25 15:32:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-11-25 15:32:56,292 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0153846153846153) internal successors, (262), 130 states have internal predecessors, (262), 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 131 [2022-11-25 15:32:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:56,294 INFO L225 Difference]: With dead ends: 265 [2022-11-25 15:32:56,294 INFO L226 Difference]: Without dead ends: 260 [2022-11-25 15:32:56,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-11-25 15:32:56,303 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 458 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:56,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 121 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:32:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-11-25 15:32:56,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2022-11-25 15:32:56,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.0077220077220077) internal successors, (261), 259 states have internal predecessors, (261), 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 15:32:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 261 transitions. [2022-11-25 15:32:56,319 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 261 transitions. Word has length 131 [2022-11-25 15:32:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:56,320 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 261 transitions. [2022-11-25 15:32:56,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0153846153846153) internal successors, (262), 130 states have internal predecessors, (262), 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 15:32:56,321 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 261 transitions. [2022-11-25 15:32:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-25 15:32:56,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:56,325 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:56,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 15:32:56,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:56,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1409096463, now seen corresponding path program 5 times [2022-11-25 15:32:56,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:56,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53745632] [2022-11-25 15:32:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:33:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:33:07,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:33:07,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53745632] [2022-11-25 15:33:07,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53745632] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:33:07,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050125018] [2022-11-25 15:33:07,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 15:33:07,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:33:07,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:33:07,092 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:33:07,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:36:12,950 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2022-11-25 15:36:12,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:36:12,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-25 15:36:13,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:13,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:36:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:26,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050125018] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:36:26,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:36:26,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-11-25 15:36:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570326446] [2022-11-25 15:36:26,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:36:26,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-11-25 15:36:26,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:26,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-11-25 15:36:26,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-11-25 15:36:26,800 INFO L87 Difference]: Start difference. First operand 260 states and 261 transitions. Second operand has 258 states, 258 states have (on average 2.007751937984496) internal successors, (518), 258 states have internal predecessors, (518), 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 15:36:39,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:39,093 INFO L93 Difference]: Finished difference Result 521 states and 586 transitions. [2022-11-25 15:36:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-11-25 15:36:39,095 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.007751937984496) internal successors, (518), 258 states have internal predecessors, (518), 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 259 [2022-11-25 15:36:39,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:39,098 INFO L225 Difference]: With dead ends: 521 [2022-11-25 15:36:39,098 INFO L226 Difference]: Without dead ends: 516 [2022-11-25 15:36:39,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-11-25 15:36:39,108 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1370 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:39,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 96 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 15:36:39,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-11-25 15:36:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2022-11-25 15:36:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.003883495145631) internal successors, (517), 515 states have internal predecessors, (517), 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 15:36:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 517 transitions. [2022-11-25 15:36:39,135 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 517 transitions. Word has length 259 [2022-11-25 15:36:39,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:39,136 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 517 transitions. [2022-11-25 15:36:39,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.007751937984496) internal successors, (518), 258 states have internal predecessors, (518), 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 15:36:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 517 transitions. [2022-11-25 15:36:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-11-25 15:36:39,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:39,148 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:39,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:39,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:36:39,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:36:39,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:39,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1982904847, now seen corresponding path program 6 times [2022-11-25 15:36:39,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:39,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836478978] [2022-11-25 15:36:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:39,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 32131 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:37:13,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:13,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836478978] [2022-11-25 15:37:13,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836478978] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:37:13,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489967745] [2022-11-25 15:37:13,686 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 15:37:13,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:37:13,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:37:13,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:37:13,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cef2674-e5df-4d74-b415-75493b0e0520/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process