./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec6e9d2be73321164eafccfcba6c9ab6d46693cbd28502eb52f7ed5ea8ae4935 --- 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-2329fc7 [2022-12-14 15:41:59,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:41:59,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:41:59,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:41:59,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:41:59,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:41:59,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:41:59,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:41:59,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:41:59,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:41:59,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:41:59,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:41:59,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:41:59,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:41:59,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:41:59,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:41:59,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:41:59,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:41:59,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:41:59,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:41:59,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:41:59,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:41:59,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:41:59,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:41:59,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:41:59,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:41:59,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:41:59,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:41:59,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:41:59,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:41:59,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:41:59,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:41:59,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:41:59,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:41:59,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:41:59,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:41:59,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:41:59,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:41:59,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:41:59,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:41:59,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:41:59,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:41:59,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:41:59,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:41:59,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:41:59,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:41:59,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:41:59,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:41:59,644 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:41:59,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:41:59,644 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:41:59,644 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:41:59,644 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:41:59,644 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:41:59,645 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:41:59,645 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:41:59,645 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:41:59,645 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:41:59,646 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:41:59,646 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:41:59,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:41:59,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:41:59,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:41:59,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:41:59,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:41:59,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:41:59,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:41:59,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:41:59,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:41:59,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec6e9d2be73321164eafccfcba6c9ab6d46693cbd28502eb52f7ed5ea8ae4935 [2022-12-14 15:41:59,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:41:59,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:41:59,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:41:59,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:41:59,861 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:41:59,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-restricted-15/c.02.c [2022-12-14 15:42:02,505 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:42:02,653 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:42:02,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/sv-benchmarks/c/termination-restricted-15/c.02.c [2022-12-14 15:42:02,659 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/data/00f159b24/81376c636c3e4e3f87e841f8b9eb71d8/FLAG103855cd6 [2022-12-14 15:42:02,671 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/data/00f159b24/81376c636c3e4e3f87e841f8b9eb71d8 [2022-12-14 15:42:02,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:42:02,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:42:02,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:42:02,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:42:02,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:42:02,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9fa34bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02, skipping insertion in model container [2022-12-14 15:42:02,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:42:02,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:42:02,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:42:02,804 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:42:02,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:42:02,829 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:42:02,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02 WrapperNode [2022-12-14 15:42:02,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:42:02,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:42:02,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:42:02,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:42:02,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,857 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-12-14 15:42:02,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:42:02,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:42:02,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:42:02,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:42:02,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:42:02,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:42:02,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:42:02,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:42:02,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (1/1) ... [2022-12-14 15:42:02,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:42:02,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:42:02,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:42:02,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:42:02,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:42:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:42:02,995 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:42:02,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:42:03,057 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:42:03,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:42:03,071 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 15:42:03,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:42:03 BoogieIcfgContainer [2022-12-14 15:42:03,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:42:03,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:42:03,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:42:03,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:42:03,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:42:02" (1/3) ... [2022-12-14 15:42:03,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20943fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:42:03, skipping insertion in model container [2022-12-14 15:42:03,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:42:02" (2/3) ... [2022-12-14 15:42:03,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20943fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:42:03, skipping insertion in model container [2022-12-14 15:42:03,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:42:03" (3/3) ... [2022-12-14 15:42:03,080 INFO L112 eAbstractionObserver]: Analyzing ICFG c.02.c [2022-12-14 15:42:03,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:42:03,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 15:42:03,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:42:03,133 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=FINITE_AUTOMATA, 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;@28bd8ab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:42:03,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 15:42:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 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) [2022-12-14 15:42:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:42:03,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:42:03,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,145 INFO L85 PathProgramCache]: Analyzing trace with hash 72428, now seen corresponding path program 1 times [2022-12-14 15:42:03,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202916577] [2022-12-14 15:42:03,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202916577] [2022-12-14 15:42:03,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202916577] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:03,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:42:03,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:42:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347845854] [2022-12-14 15:42:03,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:03,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:42:03,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:42:03,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,286 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 15:42:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:03,321 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-12-14 15:42:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:42:03,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 15:42:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:03,329 INFO L225 Difference]: With dead ends: 18 [2022-12-14 15:42:03,329 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 15:42:03,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,333 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:03,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 15:42:03,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-12-14 15:42:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 15:42:03,356 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 3 [2022-12-14 15:42:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:03,357 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 15:42:03,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 15:42:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 15:42:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 15:42:03,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 15:42:03,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:42:03,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2245313, now seen corresponding path program 1 times [2022-12-14 15:42:03,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329868981] [2022-12-14 15:42:03,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329868981] [2022-12-14 15:42:03,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329868981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:03,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:42:03,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:42:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808892177] [2022-12-14 15:42:03,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:03,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:42:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:03,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:42:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,382 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 15:42:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:03,400 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-12-14 15:42:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:42:03,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-14 15:42:03,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:03,413 INFO L225 Difference]: With dead ends: 14 [2022-12-14 15:42:03,413 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 15:42:03,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,415 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:03,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 15:42:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 15:42:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 12 states have internal predecessors, (14), 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) [2022-12-14 15:42:03,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 15:42:03,419 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2022-12-14 15:42:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:03,419 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 15:42:03,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 15:42:03,419 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 15:42:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:42:03,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:42:03,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:42:03,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2137219022, now seen corresponding path program 1 times [2022-12-14 15:42:03,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318728556] [2022-12-14 15:42:03,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318728556] [2022-12-14 15:42:03,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318728556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:03,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:42:03,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:42:03,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837336414] [2022-12-14 15:42:03,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:03,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:42:03,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:42:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:42:03,478 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:03,499 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-12-14 15:42:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:42:03,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 15:42:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:03,500 INFO L225 Difference]: With dead ends: 13 [2022-12-14 15:42:03,500 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 15:42:03,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:42:03,502 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:03,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:03,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 15:42:03,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 15:42:03,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 15:42:03,506 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2022-12-14 15:42:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:03,506 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 15:42:03,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 15:42:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:42:03,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:42:03,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:42:03,508 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2137219773, now seen corresponding path program 1 times [2022-12-14 15:42:03,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082276428] [2022-12-14 15:42:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082276428] [2022-12-14 15:42:03,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082276428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:03,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:42:03,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:42:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735096011] [2022-12-14 15:42:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:42:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:42:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,545 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:03,557 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-12-14 15:42:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:42:03,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 15:42:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:03,558 INFO L225 Difference]: With dead ends: 15 [2022-12-14 15:42:03,558 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 15:42:03,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,560 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:03,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 15:42:03,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2022-12-14 15:42:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2022-12-14 15:42:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 15:42:03,564 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2022-12-14 15:42:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:03,565 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 15:42:03,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 15:42:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:42:03,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:42:03,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:42:03,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1829280177, now seen corresponding path program 1 times [2022-12-14 15:42:03,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971042395] [2022-12-14 15:42:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971042395] [2022-12-14 15:42:03,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971042395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:03,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:42:03,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:42:03,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520554374] [2022-12-14 15:42:03,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:03,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:42:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:42:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:42:03,612 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-14 15:42:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:03,630 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-12-14 15:42:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:42:03,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-12-14 15:42:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:03,631 INFO L225 Difference]: With dead ends: 12 [2022-12-14 15:42:03,631 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 15:42:03,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:42:03,633 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:03,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:03,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 15:42:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-12-14 15:42:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-12-14 15:42:03,637 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2022-12-14 15:42:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:03,638 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-12-14 15:42:03,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-14 15:42:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 15:42:03,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:42:03,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:42:03,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:42:03,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1829303465, now seen corresponding path program 1 times [2022-12-14 15:42:03,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761914710] [2022-12-14 15:42:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761914710] [2022-12-14 15:42:03,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761914710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:42:03,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:42:03,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:42:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567151165] [2022-12-14 15:42:03,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:42:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:42:03,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:03,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:42:03,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,672 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 15:42:03,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:03,684 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 15:42:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:42:03,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-12-14 15:42:03,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:03,685 INFO L225 Difference]: With dead ends: 19 [2022-12-14 15:42:03,685 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 15:42:03,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:42:03,687 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:03,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 15:42:03,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-12-14 15:42:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:03,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-12-14 15:42:03,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2022-12-14 15:42:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:03,691 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-14 15:42:03,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 15:42:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 15:42:03,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:42:03,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:03,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 15:42:03,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:42:03,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:03,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2060546817, now seen corresponding path program 1 times [2022-12-14 15:42:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:03,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287716256] [2022-12-14 15:42:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:03,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287716256] [2022-12-14 15:42:03,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287716256] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:42:03,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996699925] [2022-12-14 15:42:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:03,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:42:03,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:42:03,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:42:03,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:42:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:03,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:42:03,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:42:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:42:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:42:03,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996699925] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:42:03,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700970224] [2022-12-14 15:42:03,846 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:42:03,846 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:42:03,849 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:42:03,853 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:42:03,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:42:03,947 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:42:04,070 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '293#(and (= |ULTIMATE.start_main_~c~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-12-14 15:42:04,070 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:42:04,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:42:04,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-14 15:42:04,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731974885] [2022-12-14 15:42:04,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:42:04,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:42:04,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:04,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:42:04,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:42:04,072 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-12-14 15:42:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:04,103 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-12-14 15:42:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:42:04,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 [2022-12-14 15:42:04,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:04,105 INFO L225 Difference]: With dead ends: 43 [2022-12-14 15:42:04,105 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 15:42:04,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:42:04,106 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 30 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:04,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 27 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:04,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 15:42:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 22. [2022-12-14 15:42:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:04,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-12-14 15:42:04,111 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2022-12-14 15:42:04,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:04,111 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-12-14 15:42:04,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-12-14 15:42:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-12-14 15:42:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 15:42:04,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:42:04,112 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2022-12-14 15:42:04,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:42:04,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:42:04,313 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:42:04,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:42:04,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1838811863, now seen corresponding path program 2 times [2022-12-14 15:42:04,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:42:04,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254343168] [2022-12-14 15:42:04,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:42:04,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:42:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:42:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 15:42:04,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:42:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254343168] [2022-12-14 15:42:04,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254343168] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:42:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547861617] [2022-12-14 15:42:04,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:42:04,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:42:04,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:42:04,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:42:04,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:42:04,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 15:42:04,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:42:04,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:42:04,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:42:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 15:42:04,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:42:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 15:42:04,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547861617] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:42:04,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773461890] [2022-12-14 15:42:04,519 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:42:04,519 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:42:04,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:42:04,519 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:42:04,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:42:04,566 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:42:04,689 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '493#(and (= |ULTIMATE.start_main_~c~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|))' at error location [2022-12-14 15:42:04,689 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:42:04,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:42:04,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 4 [2022-12-14 15:42:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096008837] [2022-12-14 15:42:04,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:42:04,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:42:04,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:42:04,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:42:04,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:42:04,691 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:04,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:42:04,729 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2022-12-14 15:42:04,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:42:04,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 15:42:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:42:04,729 INFO L225 Difference]: With dead ends: 28 [2022-12-14 15:42:04,729 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:42:04,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:42:04,731 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:42:04,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:42:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:42:04,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:42:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:42:04,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-12-14 15:42:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:42:04,732 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:42:04,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:42:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:42:04,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:42:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 15:42:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 15:42:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 15:42:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 15:42:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 15:42:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 15:42:04,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:42:04,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:42:04,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:42:05,063 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-12-14 15:42:05,063 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:42:05,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-12-14 15:42:05,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-12-14 15:42:05,065 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-12-14 15:42:05,066 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 15) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x~0#1|)) [2022-12-14 15:42:05,066 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-12-14 15:42:05,067 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2022-12-14 15:42:05,067 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:42:05,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-12-14 15:42:05,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-12-14 15:42:05,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-12-14 15:42:05,069 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-12-14 15:42:05,069 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-12-14 15:42:05,069 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-12-14 15:42:05,070 INFO L895 garLoopResultBuilder]: At program point L10-2(lines 10 17) the Hoare annotation is: (<= |ULTIMATE.start_main_~x~0#1| 2147483647) [2022-12-14 15:42:05,080 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-14 15:42:05,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:42:05,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:42:05 BoogieIcfgContainer [2022-12-14 15:42:05,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:42:05,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:42:05,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:42:05,103 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:42:05,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:42:03" (3/4) ... [2022-12-14 15:42:05,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:42:05,115 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 15:42:05,115 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 15:42:05,115 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 15:42:05,138 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:42:05,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:42:05,138 INFO L158 Benchmark]: Toolchain (without parser) took 2464.53ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 89.3MB in the beginning and 101.3MB in the end (delta: -12.0MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-12-14 15:42:05,139 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:42:05,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.24ms. Allocated memory is still 130.0MB. Free memory was 88.8MB in the beginning and 79.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 15:42:05,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.24ms. Allocated memory is still 130.0MB. Free memory was 79.6MB in the beginning and 78.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:42:05,139 INFO L158 Benchmark]: Boogie Preprocessor took 18.51ms. Allocated memory is still 130.0MB. Free memory was 78.4MB in the beginning and 77.5MB in the end (delta: 842.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:42:05,140 INFO L158 Benchmark]: RCFGBuilder took 195.93ms. Allocated memory is still 130.0MB. Free memory was 77.5MB in the beginning and 67.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 15:42:05,140 INFO L158 Benchmark]: TraceAbstraction took 2026.67ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 66.6MB in the beginning and 103.4MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:42:05,140 INFO L158 Benchmark]: Witness Printer took 35.34ms. Allocated memory is still 163.6MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:42:05,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.24ms. Allocated memory is still 130.0MB. Free memory was 88.8MB in the beginning and 79.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.24ms. Allocated memory is still 130.0MB. Free memory was 79.6MB in the beginning and 78.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.51ms. Allocated memory is still 130.0MB. Free memory was 78.4MB in the beginning and 77.5MB in the end (delta: 842.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 195.93ms. Allocated memory is still 130.0MB. Free memory was 77.5MB in the beginning and 67.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2026.67ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 66.6MB in the beginning and 103.4MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.34ms. Allocated memory is still 163.6MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 49 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=7, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 30 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 359 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 SizeOfPredicates, 2 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 66/99 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (1 <= y && x <= 2147483647) && 1 <= x RESULT: Ultimate proved your program to be correct! [2022-12-14 15:42:05,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_986db68d-8b83-47a2-bc84-b00ce473f81f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE