./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW --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 a88178fc87721f9fcc743f79bc2a47ff45a89438b0709780ae0f715015934520 --- 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-4e7fbc6 [2022-11-23 16:11:22,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:11:22,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:11:22,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:11:22,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:11:22,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:11:22,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:11:22,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:11:22,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:11:22,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:11:22,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:11:22,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:11:22,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:11:22,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:11:22,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:11:22,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:11:22,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:11:22,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:11:22,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:11:22,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:11:22,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:11:22,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:11:22,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:11:22,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:11:22,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:11:22,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:11:22,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:11:22,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:11:22,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:11:22,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:11:22,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:11:22,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:11:22,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:11:22,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:11:22,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:11:22,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:11:22,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:11:22,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:11:22,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:11:22,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:11:22,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:11:22,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 16:11:23,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:11:23,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:11:23,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:11:23,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:11:23,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:11:23,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:11:23,037 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:11:23,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:11:23,038 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:11:23,038 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:11:23,039 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:11:23,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:11:23,040 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:11:23,040 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:11:23,041 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:11:23,041 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:11:23,041 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:11:23,042 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:11:23,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:11:23,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 16:11:23,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:11:23,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:11:23,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:11:23,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:11:23,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:11:23,045 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 16:11:23,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:11:23,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:11:23,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:11:23,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:11:23,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:11:23,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:11:23,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:11:23,048 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:11:23,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:11:23,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:11:23,049 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:11:23,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:11:23,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:11:23,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:11:23,051 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_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a88178fc87721f9fcc743f79bc2a47ff45a89438b0709780ae0f715015934520 [2022-11-23 16:11:23,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:11:23,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:11:23,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:11:23,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:11:23,416 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:11:23,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i [2022-11-23 16:11:26,831 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:11:27,206 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:11:27,211 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i [2022-11-23 16:11:27,225 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/data/9ddfa3dde/e43936159128479abe0d65b71d8fe422/FLAGeb752321c [2022-11-23 16:11:27,242 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/data/9ddfa3dde/e43936159128479abe0d65b71d8fe422 [2022-11-23 16:11:27,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:11:27,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:11:27,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:11:27,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:11:27,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:11:27,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9e6ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27, skipping insertion in model container [2022-11-23 16:11:27,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:11:27,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:11:27,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:11:27,758 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:11:27,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:11:27,836 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:11:27,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27 WrapperNode [2022-11-23 16:11:27,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:11:27,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:11:27,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:11:27,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:11:27,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,882 INFO L138 Inliner]: procedures = 111, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-11-23 16:11:27,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:11:27,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:11:27,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:11:27,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:11:27,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:11:27,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:11:27,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:11:27,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:11:27,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (1/1) ... [2022-11-23 16:11:27,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:11:27,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:27,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:11:28,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:11:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:11:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:11:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:11:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:11:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:11:28,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:11:28,166 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:11:28,168 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:11:28,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:11:28,491 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:11:28,491 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 16:11:28,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:11:28 BoogieIcfgContainer [2022-11-23 16:11:28,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:11:28,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:11:28,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:11:28,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:11:28,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:11:27" (1/3) ... [2022-11-23 16:11:28,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1dd91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:11:28, skipping insertion in model container [2022-11-23 16:11:28,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:11:27" (2/3) ... [2022-11-23 16:11:28,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1dd91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:11:28, skipping insertion in model container [2022-11-23 16:11:28,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:11:28" (3/3) ... [2022-11-23 16:11:28,505 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca-2.i [2022-11-23 16:11:28,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:11:28,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-23 16:11:28,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:11:28,580 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;@2e013dae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:11:28,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-23 16:11:28,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 16:11:28,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:28,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 16:11:28,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:28,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash 124826, now seen corresponding path program 1 times [2022-11-23 16:11:28,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:28,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330809340] [2022-11-23 16:11:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:28,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:28,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:28,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330809340] [2022-11-23 16:11:28,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330809340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:28,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:28,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:11:28,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102646554] [2022-11-23 16:11:28,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:28,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:28,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:28,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:28,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:11:28,969 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2022-11-23 16:11:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:29,151 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2022-11-23 16:11:29,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 [2022-11-23 16:11:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:29,164 INFO L225 Difference]: With dead ends: 101 [2022-11-23 16:11:29,164 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 16:11:29,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:11:29,172 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 36 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:29,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 98 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:11:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 16:11:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 38. [2022-11-23 16:11:29,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.75) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-23 16:11:29,214 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 3 [2022-11-23 16:11:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:29,214 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-23 16:11:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2022-11-23 16:11:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-23 16:11:29,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 16:11:29,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:29,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 16:11:29,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:11:29,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:29,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:29,217 INFO L85 PathProgramCache]: Analyzing trace with hash 3873954, now seen corresponding path program 1 times [2022-11-23 16:11:29,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:29,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754429005] [2022-11-23 16:11:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:29,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:29,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754429005] [2022-11-23 16:11:29,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754429005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:29,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:29,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:11:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600840238] [2022-11-23 16:11:29,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:29,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:11:29,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:11:29,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:11:29,285 INFO L87 Difference]: Start difference. First operand 38 states and 42 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) [2022-11-23 16:11:29,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:29,312 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-11-23 16:11:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:11:29,313 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 [2022-11-23 16:11:29,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:29,314 INFO L225 Difference]: With dead ends: 38 [2022-11-23 16:11:29,314 INFO L226 Difference]: Without dead ends: 37 [2022-11-23 16:11:29,315 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 [2022-11-23 16:11:29,316 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:29,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-23 16:11:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-23 16:11:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-23 16:11:29,325 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 4 [2022-11-23 16:11:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:29,325 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-23 16:11:29,325 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) [2022-11-23 16:11:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-23 16:11:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 16:11:29,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:29,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 16:11:29,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:11:29,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:29,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash 120092646, now seen corresponding path program 1 times [2022-11-23 16:11:29,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:29,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296196219] [2022-11-23 16:11:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:29,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:29,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:29,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:29,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296196219] [2022-11-23 16:11:29,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296196219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:29,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:29,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:11:29,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031408935] [2022-11-23 16:11:29,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:29,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:29,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:11:29,522 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:29,567 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-11-23 16:11:29,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:29,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 16:11:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:29,569 INFO L225 Difference]: With dead ends: 66 [2022-11-23 16:11:29,569 INFO L226 Difference]: Without dead ends: 37 [2022-11-23 16:11:29,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:11:29,571 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:29,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 93 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-23 16:11:29,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-23 16:11:29,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-11-23 16:11:29,578 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 5 [2022-11-23 16:11:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:29,579 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-11-23 16:11:29,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,579 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-11-23 16:11:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 16:11:29,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:29,580 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 16:11:29,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 16:11:29,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:29,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:29,582 INFO L85 PathProgramCache]: Analyzing trace with hash -576221257, now seen corresponding path program 1 times [2022-11-23 16:11:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:29,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594582879] [2022-11-23 16:11:29,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:29,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:29,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:29,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594582879] [2022-11-23 16:11:29,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594582879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:29,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815587422] [2022-11-23 16:11:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:29,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:29,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:29,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:29,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:11:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:29,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:11:29,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:29,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:29,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:11:29,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815587422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:29,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 16:11:29,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-23 16:11:29,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782247860] [2022-11-23 16:11:29,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:29,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:11:29,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:29,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:11:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:11:29,935 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:29,983 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-23 16:11:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:11:29,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 16:11:29,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:29,985 INFO L225 Difference]: With dead ends: 37 [2022-11-23 16:11:29,985 INFO L226 Difference]: Without dead ends: 36 [2022-11-23 16:11:29,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 16:11:29,987 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 38 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:29,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 90 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-23 16:11:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-23 16:11:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.625) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-11-23 16:11:29,994 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 6 [2022-11-23 16:11:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:29,994 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-23 16:11:29,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-11-23 16:11:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 16:11:29,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:29,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-23 16:11:30,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:30,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:30,206 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:30,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash -682989730, now seen corresponding path program 1 times [2022-11-23 16:11:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:30,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809621515] [2022-11-23 16:11:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:30,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:30,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:30,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809621515] [2022-11-23 16:11:30,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809621515] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:30,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22702602] [2022-11-23 16:11:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:30,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:30,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:30,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:30,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:11:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:30,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:11:30,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:30,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:11:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:30,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22702602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:11:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1735436185] [2022-11-23 16:11:30,618 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-23 16:11:30,618 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:11:30,644 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:11:30,656 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:11:30,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:11:30,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-23 16:11:30,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 16:11:30,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:31,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:31,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-23 16:11:31,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:31,238 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:11:31,549 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '558#(and (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post10#1|) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2022-11-23 16:11:31,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:11:31,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:11:31,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-23 16:11:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329080060] [2022-11-23 16:11:31,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:11:31,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:11:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:31,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:11:31,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-23 16:11:31,551 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:31,701 INFO L93 Difference]: Finished difference Result 130 states and 144 transitions. [2022-11-23 16:11:31,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 16:11:31,701 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 16:11:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:31,704 INFO L225 Difference]: With dead ends: 130 [2022-11-23 16:11:31,706 INFO L226 Difference]: Without dead ends: 129 [2022-11-23 16:11:31,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-11-23 16:11:31,709 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 202 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:31,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 244 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:11:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-23 16:11:31,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 45. [2022-11-23 16:11:31,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-23 16:11:31,730 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 7 [2022-11-23 16:11:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:31,730 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-23 16:11:31,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-23 16:11:31,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 16:11:31,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:31,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:31,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:31,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:31,938 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:31,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash 302288067, now seen corresponding path program 1 times [2022-11-23 16:11:31,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:31,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077481431] [2022-11-23 16:11:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:31,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:32,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:32,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:32,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077481431] [2022-11-23 16:11:32,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077481431] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:32,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410886104] [2022-11-23 16:11:32,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:32,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:32,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:32,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:32,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:11:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:32,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 16:11:32,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:32,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:11:32,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410886104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:32,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 16:11:32,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2022-11-23 16:11:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103502422] [2022-11-23 16:11:32,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:32,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:32,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:32,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:11:32,217 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:32,275 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2022-11-23 16:11:32,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:32,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 16:11:32,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:32,281 INFO L225 Difference]: With dead ends: 73 [2022-11-23 16:11:32,282 INFO L226 Difference]: Without dead ends: 72 [2022-11-23 16:11:32,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:11:32,287 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 89 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:32,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 52 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-23 16:11:32,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59. [2022-11-23 16:11:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.5957446808510638) internal successors, (75), 58 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-23 16:11:32,304 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 8 [2022-11-23 16:11:32,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:32,304 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-23 16:11:32,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-23 16:11:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 16:11:32,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:32,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:32,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:32,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 16:11:32,506 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:32,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:32,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1558941275, now seen corresponding path program 1 times [2022-11-23 16:11:32,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:32,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000968084] [2022-11-23 16:11:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:32,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:11:32,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:32,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000968084] [2022-11-23 16:11:32,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000968084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:32,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:32,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:11:32,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179245535] [2022-11-23 16:11:32,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:32,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:11:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:32,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:11:32,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:11:32,574 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:32,645 INFO L93 Difference]: Finished difference Result 100 states and 128 transitions. [2022-11-23 16:11:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:11:32,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 16:11:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:32,650 INFO L225 Difference]: With dead ends: 100 [2022-11-23 16:11:32,650 INFO L226 Difference]: Without dead ends: 94 [2022-11-23 16:11:32,651 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 [2022-11-23 16:11:32,652 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:32,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 39 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:11:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-23 16:11:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2022-11-23 16:11:32,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.492537313432836) internal successors, (100), 78 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2022-11-23 16:11:32,674 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 10 [2022-11-23 16:11:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:32,674 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2022-11-23 16:11:32,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2022-11-23 16:11:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 16:11:32,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:32,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:32,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 16:11:32,676 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:32,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:32,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1082540310, now seen corresponding path program 1 times [2022-11-23 16:11:32,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:32,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431631182] [2022-11-23 16:11:32,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:32,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:11:32,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:32,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431631182] [2022-11-23 16:11:32,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431631182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:32,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:32,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:11:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489863052] [2022-11-23 16:11:32,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:32,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:32,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:32,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:11:32,743 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:32,781 INFO L93 Difference]: Finished difference Result 79 states and 100 transitions. [2022-11-23 16:11:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:32,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 16:11:32,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:32,782 INFO L225 Difference]: With dead ends: 79 [2022-11-23 16:11:32,782 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 16:11:32,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:11:32,784 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 47 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 [2022-11-23 16:11:32,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 47 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 16:11:32,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-23 16:11:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 77 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2022-11-23 16:11:32,808 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 11 [2022-11-23 16:11:32,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:32,808 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2022-11-23 16:11:32,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,808 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2022-11-23 16:11:32,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 16:11:32,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:32,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:32,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 16:11:32,810 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:32,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:32,810 INFO L85 PathProgramCache]: Analyzing trace with hash 800988866, now seen corresponding path program 1 times [2022-11-23 16:11:32,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:32,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764310559] [2022-11-23 16:11:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:32,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:11:32,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764310559] [2022-11-23 16:11:32,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764310559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:32,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:32,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:11:32,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398535545] [2022-11-23 16:11:32,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:32,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:32,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:32,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:32,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:11:32,867 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-23 16:11:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:32,917 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2022-11-23 16:11:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:32,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) Word has length 12 [2022-11-23 16:11:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:32,919 INFO L225 Difference]: With dead ends: 90 [2022-11-23 16:11:32,919 INFO L226 Difference]: Without dead ends: 89 [2022-11-23 16:11:32,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:11:32,920 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:32,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 71 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:32,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-23 16:11:32,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 81. [2022-11-23 16:11:32,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 70 states have (on average 1.457142857142857) internal successors, (102), 80 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2022-11-23 16:11:32,932 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 12 [2022-11-23 16:11:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:32,933 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2022-11-23 16:11:32,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-23 16:11:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2022-11-23 16:11:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 16:11:32,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:32,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:32,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 16:11:32,936 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:32,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash 984569364, now seen corresponding path program 1 times [2022-11-23 16:11:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:32,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336833614] [2022-11-23 16:11:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:11:32,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:32,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336833614] [2022-11-23 16:11:32,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336833614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:32,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:32,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:11:32,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114400157] [2022-11-23 16:11:32,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:32,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:32,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:32,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:11:32,988 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2022-11-23 16:11:33,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:33,061 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2022-11-23 16:11:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:33,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) Word has length 14 [2022-11-23 16:11:33,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:33,063 INFO L225 Difference]: With dead ends: 98 [2022-11-23 16:11:33,063 INFO L226 Difference]: Without dead ends: 96 [2022-11-23 16:11:33,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:11:33,064 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:33,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 54 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:11:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-23 16:11:33,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2022-11-23 16:11:33,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 86 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:33,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2022-11-23 16:11:33,071 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 14 [2022-11-23 16:11:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:33,072 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2022-11-23 16:11:33,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2022-11-23 16:11:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2022-11-23 16:11:33,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 16:11:33,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:33,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:33,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 16:11:33,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:33,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash -578924863, now seen corresponding path program 1 times [2022-11-23 16:11:33,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:33,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841964933] [2022-11-23 16:11:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:11:33,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841964933] [2022-11-23 16:11:33,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841964933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:33,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:33,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:11:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132461547] [2022-11-23 16:11:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:33,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:11:33,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:11:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:11:33,122 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:33,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:33,185 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2022-11-23 16:11:33,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:11:33,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 16:11:33,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:33,187 INFO L225 Difference]: With dead ends: 131 [2022-11-23 16:11:33,187 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 16:11:33,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:11:33,188 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:33,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 29 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:11:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 16:11:33,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2022-11-23 16:11:33,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 76 states have (on average 1.394736842105263) internal successors, (106), 86 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2022-11-23 16:11:33,194 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 15 [2022-11-23 16:11:33,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:33,195 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2022-11-23 16:11:33,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2022-11-23 16:11:33,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 16:11:33,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:33,196 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2022-11-23 16:11:33,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 16:11:33,197 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:33,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1522535963, now seen corresponding path program 2 times [2022-11-23 16:11:33,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:33,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008826351] [2022-11-23 16:11:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:11:33,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:33,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008826351] [2022-11-23 16:11:33,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008826351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:33,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857231182] [2022-11-23 16:11:33,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 16:11:33,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:33,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:33,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:33,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:11:33,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 16:11:33,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:11:33,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:11:33,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 16:11:33,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:11:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 16:11:33,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857231182] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:11:33,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [995599507] [2022-11-23 16:11:33,662 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-23 16:11:33,663 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:11:33,663 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:11:33,663 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:11:33,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:11:33,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-23 16:11:33,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 16:11:33,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:33,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:33,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-23 16:11:33,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:33,867 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:11:34,173 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2099#(and (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post10#1|) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2022-11-23 16:11:34,173 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:11:34,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:11:34,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 13 [2022-11-23 16:11:34,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204114608] [2022-11-23 16:11:34,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:11:34,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 16:11:34,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:34,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 16:11:34,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-23 16:11:34,175 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 15 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:34,458 INFO L93 Difference]: Finished difference Result 370 states and 451 transitions. [2022-11-23 16:11:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 16:11:34,459 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 16:11:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:34,461 INFO L225 Difference]: With dead ends: 370 [2022-11-23 16:11:34,461 INFO L226 Difference]: Without dead ends: 369 [2022-11-23 16:11:34,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2022-11-23 16:11:34,463 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 314 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:34,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 290 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:34,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-23 16:11:34,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 75. [2022-11-23 16:11:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.4) internal successors, (91), 74 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2022-11-23 16:11:34,471 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 16 [2022-11-23 16:11:34,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:34,472 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2022-11-23 16:11:34,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:34,472 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2022-11-23 16:11:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 16:11:34,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:34,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:34,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:34,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:34,680 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:34,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:34,681 INFO L85 PathProgramCache]: Analyzing trace with hash 54095540, now seen corresponding path program 1 times [2022-11-23 16:11:34,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:34,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914210519] [2022-11-23 16:11:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:34,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:11:34,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:34,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914210519] [2022-11-23 16:11:34,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914210519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:34,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650046457] [2022-11-23 16:11:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:34,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:34,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:34,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:34,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 16:11:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:34,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 16:11:34,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 16:11:34,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:11:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 16:11:34,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650046457] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:11:34,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [796231103] [2022-11-23 16:11:34,989 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 16:11:34,989 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:11:34,989 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:11:34,990 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:11:34,990 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:11:35,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-23 16:11:35,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 16:11:35,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:35,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-23 16:11:35,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:35,743 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:11:37,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [796231103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:37,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:11:37,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 5, 5] total 18 [2022-11-23 16:11:37,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726494697] [2022-11-23 16:11:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:37,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 16:11:37,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 16:11:37,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-23 16:11:37,041 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:38,042 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2022-11-23 16:11:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 16:11:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-23 16:11:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:38,043 INFO L225 Difference]: With dead ends: 83 [2022-11-23 16:11:38,043 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 16:11:38,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-11-23 16:11:38,044 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 91 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:38,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 43 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 16:11:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 16:11:38,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2022-11-23 16:11:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2022-11-23 16:11:38,053 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 19 [2022-11-23 16:11:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:38,053 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2022-11-23 16:11:38,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2022-11-23 16:11:38,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 16:11:38,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:38,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:38,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:38,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:38,267 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash -689894183, now seen corresponding path program 1 times [2022-11-23 16:11:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:38,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168660832] [2022-11-23 16:11:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:38,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 16:11:38,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:38,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168660832] [2022-11-23 16:11:38,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168660832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:38,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:38,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:11:38,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111288748] [2022-11-23 16:11:38,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:38,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:11:38,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:11:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:11:38,305 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:38,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:38,340 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2022-11-23 16:11:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:11:38,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-23 16:11:38,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:38,342 INFO L225 Difference]: With dead ends: 76 [2022-11-23 16:11:38,342 INFO L226 Difference]: Without dead ends: 74 [2022-11-23 16:11:38,342 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 [2022-11-23 16:11:38,343 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:38,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 27 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:38,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-23 16:11:38,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2022-11-23 16:11:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 72 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2022-11-23 16:11:38,352 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 23 [2022-11-23 16:11:38,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:38,352 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2022-11-23 16:11:38,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2022-11-23 16:11:38,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 16:11:38,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:38,353 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:38,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 16:11:38,354 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:38,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:38,354 INFO L85 PathProgramCache]: Analyzing trace with hash -947379438, now seen corresponding path program 1 times [2022-11-23 16:11:38,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:38,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865724230] [2022-11-23 16:11:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:38,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 16:11:38,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:38,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865724230] [2022-11-23 16:11:38,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865724230] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:38,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021060492] [2022-11-23 16:11:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:38,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:38,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:38,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:38,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 16:11:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:38,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 16:11:38,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 16:11:38,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:11:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 16:11:38,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021060492] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:11:38,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [825425060] [2022-11-23 16:11:38,626 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-23 16:11:38,626 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:11:38,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:11:38,627 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:11:38,627 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:11:38,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-23 16:11:38,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 16:11:38,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:38,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:38,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-23 16:11:38,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:40,496 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:11:42,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [825425060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:42,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:11:42,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 5, 5] total 18 [2022-11-23 16:11:42,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686439377] [2022-11-23 16:11:42,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:42,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:11:42,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:42,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:11:42,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2022-11-23 16:11:42,188 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:42,705 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-11-23 16:11:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 16:11:42,705 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-23 16:11:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:42,706 INFO L225 Difference]: With dead ends: 73 [2022-11-23 16:11:42,706 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 16:11:42,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 10 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-11-23 16:11:42,707 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:42,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 16:11:42,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 16:11:42,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-23 16:11:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 66 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2022-11-23 16:11:42,715 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 24 [2022-11-23 16:11:42,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:42,715 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2022-11-23 16:11:42,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2022-11-23 16:11:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 16:11:42,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:42,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:42,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:42,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 16:11:42,923 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:42,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:42,923 INFO L85 PathProgramCache]: Analyzing trace with hash 88424737, now seen corresponding path program 1 times [2022-11-23 16:11:42,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:42,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894399098] [2022-11-23 16:11:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 16:11:42,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:42,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894399098] [2022-11-23 16:11:42,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894399098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:11:42,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:11:42,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:11:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953978452] [2022-11-23 16:11:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:11:42,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:11:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:11:42,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:11:42,992 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:43,028 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2022-11-23 16:11:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:11:43,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-23 16:11:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:43,029 INFO L225 Difference]: With dead ends: 67 [2022-11-23 16:11:43,029 INFO L226 Difference]: Without dead ends: 66 [2022-11-23 16:11:43,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:11:43,030 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:43,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:43,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-23 16:11:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2022-11-23 16:11:43,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 45 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-23 16:11:43,038 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 24 [2022-11-23 16:11:43,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:43,038 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-23 16:11:43,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-23 16:11:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 16:11:43,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:43,042 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:43,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 16:11:43,043 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:43,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:43,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1502180898, now seen corresponding path program 1 times [2022-11-23 16:11:43,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:43,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101637417] [2022-11-23 16:11:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:43,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 16:11:43,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101637417] [2022-11-23 16:11:43,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101637417] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205224057] [2022-11-23 16:11:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:43,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:43,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:43,185 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:43,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 16:11:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:43,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 16:11:43,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:43,320 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 16:11:43,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:11:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 16:11:43,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205224057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:11:43,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1471994184] [2022-11-23 16:11:43,365 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-23 16:11:43,366 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:11:43,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:11:43,366 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:11:43,367 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:11:43,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 16:11:43,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-23 16:11:43,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:43,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:43,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-23 16:11:43,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:45,263 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:11:47,120 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3770#(and (<= |ULTIMATE.start_sort_#in~x#1.offset| 0) (<= 0 |ULTIMATE.start_sort_#in~x#1.offset|) (<= 0 |ULTIMATE.start_sort_~x#1.base|) (<= |ULTIMATE.start_sort_#in~n#1| 2147483647) (< 2147483646 |ULTIMATE.start_sort_#t~post2#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_sort_~n#1|) (<= 0 |ULTIMATE.start_sort_~x#1.offset|) (<= 0 |ULTIMATE.start_sort_#in~x#1.base|) (<= |ULTIMATE.start_sort_~x#1.offset| 0) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (= |ULTIMATE.start_sort_#t~post2#1| |ULTIMATE.start_sort_~pass~0#1|) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1 |ULTIMATE.start_sort_#in~n#1|) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_sort_~i~0#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= |ULTIMATE.start_sort_~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2022-11-23 16:11:47,120 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:11:47,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:11:47,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-11-23 16:11:47,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910006496] [2022-11-23 16:11:47,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:11:47,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:11:47,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:47,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:11:47,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:11:47,122 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:47,198 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-11-23 16:11:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:11:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 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) Word has length 37 [2022-11-23 16:11:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:47,199 INFO L225 Difference]: With dead ends: 92 [2022-11-23 16:11:47,199 INFO L226 Difference]: Without dead ends: 51 [2022-11-23 16:11:47,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 84 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-11-23 16:11:47,200 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:47,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 129 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:11:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-23 16:11:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2022-11-23 16:11:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.125) internal successors, (54), 48 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-23 16:11:47,209 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 37 [2022-11-23 16:11:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:47,209 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-23 16:11:47,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:47,210 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-23 16:11:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 16:11:47,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:11:47,211 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-23 16:11:47,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 16:11:47,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 16:11:47,418 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 16:11:47,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:11:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1918031615, now seen corresponding path program 2 times [2022-11-23 16:11:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:11:47,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963888938] [2022-11-23 16:11:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:11:47,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:11:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:11:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 16:11:47,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:11:47,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963888938] [2022-11-23 16:11:47,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963888938] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:11:47,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110605874] [2022-11-23 16:11:47,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 16:11:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:11:47,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:11:47,683 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:11:47,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 16:11:47,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 16:11:47,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:11:47,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 16:11:47,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:11:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 16:11:47,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:11:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 16:11:48,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110605874] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:11:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [910054487] [2022-11-23 16:11:48,035 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-23 16:11:48,035 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:11:48,036 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:11:48,036 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:11:48,036 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:11:48,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 16:11:48,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-23 16:11:48,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:48,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2022-11-23 16:11:48,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-23 16:11:49,725 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:11:52,131 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4199#(and (<= |ULTIMATE.start_sort_#in~x#1.offset| 0) (<= 0 |ULTIMATE.start_sort_#in~x#1.offset|) (<= 0 |ULTIMATE.start_sort_~x#1.base|) (<= |ULTIMATE.start_sort_#in~n#1| 2147483647) (< 2147483646 |ULTIMATE.start_sort_#t~post2#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_sort_~n#1|) (<= 0 |ULTIMATE.start_sort_~x#1.offset|) (<= 0 |ULTIMATE.start_sort_#in~x#1.base|) (<= |ULTIMATE.start_sort_~x#1.offset| 0) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (= |ULTIMATE.start_sort_#t~post2#1| |ULTIMATE.start_sort_~pass~0#1|) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1 |ULTIMATE.start_sort_#in~n#1|) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_sort_~i~0#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= |ULTIMATE.start_sort_~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2022-11-23 16:11:52,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:11:52,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:11:52,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-11-23 16:11:52,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055486477] [2022-11-23 16:11:52,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:11:52,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 16:11:52,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:11:52,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 16:11:52,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2022-11-23 16:11:52,134 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:52,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:11:52,477 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2022-11-23 16:11:52,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 16:11:52,477 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-23 16:11:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:11:52,478 INFO L225 Difference]: With dead ends: 95 [2022-11-23 16:11:52,478 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 16:11:52,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 93 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=229, Invalid=1103, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 16:11:52,480 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 141 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:11:52,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 101 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:11:52,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 16:11:52,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 16:11:52,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 16:11:52,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2022-11-23 16:11:52,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:11:52,482 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 16:11:52,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:11:52,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 16:11:52,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 16:11:52,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-23 16:11:52,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-23 16:11:52,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-23 16:11:52,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-23 16:11:52,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-23 16:11:52,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-23 16:11:52,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-23 16:11:52,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-23 16:11:52,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-23 16:11:52,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-23 16:11:52,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-23 16:11:52,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-23 16:11:52,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-23 16:11:52,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-23 16:11:52,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-23 16:11:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 16:11:52,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 16:11:54,173 INFO L899 garLoopResultBuilder]: For program point L551-6(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,174 INFO L895 garLoopResultBuilder]: At program point L551-7(lines 551 554) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_sort_~pass~0#1|) (<= |ULTIMATE.start_sort_#in~x#1.offset| 0) (<= 0 |ULTIMATE.start_sort_#in~x#1.offset|) (<= 0 |ULTIMATE.start_sort_~x#1.base|) (<= |ULTIMATE.start_sort_#in~n#1| 2147483647) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_sort_~x#1.offset|) (<= 0 |ULTIMATE.start_sort_#in~x#1.base|) (<= |ULTIMATE.start_sort_~x#1.offset| 0) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1 |ULTIMATE.start_sort_#in~n#1|) (<= (+ |ULTIMATE.start_sort_~pass~0#1| 1) |ULTIMATE.start_sort_~n#1|) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_sort_~i~0#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_sort_~n#1| 2147483647) (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|)) [2022-11-23 16:11:54,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,174 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-23 16:11:54,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,174 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point L552-2(lines 552 554) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,175 INFO L899 garLoopResultBuilder]: For program point L553-1(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point L553-2(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point L553-3(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point L562-3(line 562) no Hoare annotation was computed. [2022-11-23 16:11:54,176 INFO L899 garLoopResultBuilder]: For program point L562-4(line 562) no Hoare annotation was computed. [2022-11-23 16:11:54,177 INFO L895 garLoopResultBuilder]: At program point L562-5(lines 562 565) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0)) (.cse2 (<= |#NULL.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|)) (.cse4 (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|)) (.cse5 (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|)) (.cse6 (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|)) (.cse7 (<= 0 |#NULL.offset|)) (.cse8 (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0)) (.cse9 (<= 0 |#StackHeapBarrier|)) (.cse10 (= |#NULL.base| 0)) (.cse11 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2022-11-23 16:11:54,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,177 INFO L899 garLoopResultBuilder]: For program point L550-2(lines 550 554) no Hoare annotation was computed. [2022-11-23 16:11:54,177 INFO L899 garLoopResultBuilder]: For program point L550-3(line 550) no Hoare annotation was computed. [2022-11-23 16:11:54,177 INFO L899 garLoopResultBuilder]: For program point L550-4(line 550) no Hoare annotation was computed. [2022-11-23 16:11:54,178 INFO L895 garLoopResultBuilder]: At program point L550-5(lines 550 554) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_sort_~pass~0#1| 1)) (.cse1 (<= 0 |ULTIMATE.start_sort_~x#1.offset|)) (.cse2 (<= |ULTIMATE.start_sort_~x#1.offset| 0)) (.cse3 (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0)) (.cse4 (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|)) (.cse5 (<= |ULTIMATE.start_main_~i~1#1| 2147483647)) (.cse6 (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|)) (.cse7 (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |#NULL.base| 0)) (.cse10 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_sort_~n#1| 0) .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_main_~numbers~0#1.offset| |ULTIMATE.start_sort_#in~x#1.offset|) (= |ULTIMATE.start_sort_~n#1| |ULTIMATE.start_sort_#in~n#1|) .cse3 .cse4 (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) .cse5 (= |ULTIMATE.start_main_~array_size~0#1| |ULTIMATE.start_sort_#in~n#1|) (= |ULTIMATE.start_sort_#in~x#1.base| |ULTIMATE.start_main_~numbers~0#1.base|) .cse6 (= |#NULL.offset| 0) .cse7 (<= |ULTIMATE.start_main_~array_size~0#1| |ULTIMATE.start_main_~i~1#1|) (= |ULTIMATE.start_sort_#in~x#1.base| |ULTIMATE.start_sort_~x#1.base|) .cse8 .cse9 .cse0 .cse10) (and (<= 1 |ULTIMATE.start_sort_~pass~0#1|) (<= |ULTIMATE.start_sort_#in~x#1.offset| 0) (<= 0 |ULTIMATE.start_sort_#in~x#1.offset|) (<= 0 |ULTIMATE.start_sort_~x#1.base|) (<= |ULTIMATE.start_sort_#in~n#1| 2147483647) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_sort_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_sort_~n#1|) .cse1 (<= 0 |ULTIMATE.start_sort_#in~x#1.base|) .cse2 .cse3 (<= |#NULL.offset| 0) .cse4 (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|) .cse5 (<= 1 |ULTIMATE.start_sort_#in~n#1|) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_sort_~i~0#1|) .cse6 .cse7 (<= |ULTIMATE.start_sort_~pass~0#1| 2147483647) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_sort_~n#1| 2147483647) (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) .cse8 .cse9 .cse10))) [2022-11-23 16:11:54,178 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,178 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,178 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2022-11-23 16:11:54,178 INFO L899 garLoopResultBuilder]: For program point L551-1(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,179 INFO L899 garLoopResultBuilder]: For program point L551-2(lines 551 554) no Hoare annotation was computed. [2022-11-23 16:11:54,179 INFO L899 garLoopResultBuilder]: For program point L551-4(lines 551 554) no Hoare annotation was computed. [2022-11-23 16:11:54,179 INFO L899 garLoopResultBuilder]: For program point L551-5(line 551) no Hoare annotation was computed. [2022-11-23 16:11:54,183 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:11:54,185 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 16:11:54,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:11:54 BoogieIcfgContainer [2022-11-23 16:11:54,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 16:11:54,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 16:11:54,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 16:11:54,240 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 16:11:54,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:11:28" (3/4) ... [2022-11-23 16:11:54,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 16:11:54,261 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-23 16:11:54,261 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 16:11:54,262 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 16:11:54,262 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 16:11:54,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 16:11:54,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 16:11:54,323 INFO L158 Benchmark]: Toolchain (without parser) took 27075.84ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 113.7MB in the beginning and 104.5MB in the end (delta: 9.2MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2022-11-23 16:11:54,324 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:11:54,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.98ms. Allocated memory is still 144.7MB. Free memory was 113.7MB in the beginning and 97.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 16:11:54,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.51ms. Allocated memory is still 144.7MB. Free memory was 97.6MB in the beginning and 96.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:11:54,325 INFO L158 Benchmark]: Boogie Preprocessor took 61.01ms. Allocated memory is still 144.7MB. Free memory was 96.0MB in the beginning and 94.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:11:54,331 INFO L158 Benchmark]: RCFGBuilder took 550.10ms. Allocated memory is still 144.7MB. Free memory was 94.4MB in the beginning and 79.7MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 16:11:54,331 INFO L158 Benchmark]: TraceAbstraction took 25741.40ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 79.2MB in the beginning and 107.7MB in the end (delta: -28.5MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. [2022-11-23 16:11:54,332 INFO L158 Benchmark]: Witness Printer took 83.27ms. Allocated memory is still 251.7MB. Free memory was 107.7MB in the beginning and 104.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 16:11:54,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.98ms. Allocated memory is still 144.7MB. Free memory was 113.7MB in the beginning and 97.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.51ms. Allocated memory is still 144.7MB. Free memory was 97.6MB in the beginning and 96.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.01ms. Allocated memory is still 144.7MB. Free memory was 96.0MB in the beginning and 94.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 550.10ms. Allocated memory is still 144.7MB. Free memory was 94.4MB in the beginning and 79.7MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25741.40ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 79.2MB in the beginning and 107.7MB in the end (delta: -28.5MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. * Witness Printer took 83.27ms. Allocated memory is still 251.7MB. Free memory was 107.7MB in the beginning and 104.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: 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, 36 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 25.6s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1111 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1111 mSDsluCounter, 1469 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1077 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 857 IncrementalHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 392 mSDtfsCounter, 857 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 544 GetRequests, 329 SyntacticMatches, 38 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=10, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 479 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 18 NumberOfFragments, 322 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1636 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4036 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 435 NumberOfCodeBlocks, 392 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 1309 SizeOfPredicates, 36 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 32 InterpolantComputations, 12 PerfectInterpolantSequences, 241/358 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: OVERALL_TIME: 2.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 44, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 219, TOOLS_POST_TIME: 2.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 219, TOOLS_QUANTIFIERELIM_TIME: 1.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 300, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 25, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 19, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 44, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 1.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 19, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 2120, DAG_COMPRESSION_RETAINED_NODES: 151, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((1 <= pass && #in~x <= 0) && 0 <= #in~x) && 0 <= x) && unknown-#in~n-unknown <= 2147483647) && array_size <= 2147483647) && i <= 2147483647) && 0 <= x) && 0 <= #in~x) && x <= 0) && numbers <= 0) && #NULL <= 0) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && i <= 2147483647) && 1 <= unknown-#in~n-unknown) && pass + 1 <= n) && 1 <= i) && 0 <= i) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && 0 <= #NULL) && n <= 2147483647) && __builtin_alloca (array_size * sizeof(int)) <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 1 <= array_size - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((i == 0 && n <= 0) && pass == 1) || ((((((((((((((((((0 <= x && x <= 0) && numbers == #in~x) && n == unknown-#in~n-unknown) && numbers <= 0) && 0 <= numbers) && __builtin_alloca (array_size * sizeof(int)) == 0) && i <= 2147483647) && array_size == unknown-#in~n-unknown) && #in~x == numbers) && 0 <= numbers) && #NULL == 0) && 0 <= __builtin_alloca (array_size * sizeof(int))) && array_size <= i) && #in~x == x) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && pass == 1) && 1 <= array_size)) || (((((((((((((((((((((((((((1 <= pass && #in~x <= 0) && 0 <= #in~x) && 0 <= x) && unknown-#in~n-unknown <= 2147483647) && array_size <= 2147483647) && i <= 2147483647) && 1 <= n) && 0 <= x) && 0 <= #in~x) && x <= 0) && numbers <= 0) && #NULL <= 0) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && i <= 2147483647) && 1 <= unknown-#in~n-unknown) && 1 <= i) && 0 <= i) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && pass <= 2147483647) && 0 <= #NULL) && n <= 2147483647) && __builtin_alloca (array_size * sizeof(int)) <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 1 <= array_size) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: ((((((((((((array_size <= 2147483647 && i == 0) && numbers <= 0) && #NULL <= 0) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && 0 <= #NULL) && __builtin_alloca (array_size * sizeof(int)) <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 1 <= array_size) || (((((((((((((array_size <= 2147483647 && numbers <= 0) && #NULL <= 0) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && i <= 2147483647) && 1 <= i) && 0 <= numbers) && 0 <= __builtin_alloca (array_size * sizeof(int))) && 0 <= #NULL) && __builtin_alloca (array_size * sizeof(int)) <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 1 <= array_size) RESULT: Ultimate proved your program to be correct! [2022-11-23 16:11:54,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b545b978-3692-40b3-8ef2-92eab908221f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE