./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-008.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-008.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0 --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 32bit --witnessprinter.graph.data.programhash 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 --- 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-e04fb08 [2022-11-16 16:00:10,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:00:10,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:00:10,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:00:10,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:00:10,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:00:10,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:00:10,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:00:10,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:00:10,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:00:10,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:00:10,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:00:10,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:00:10,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:00:10,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:00:10,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:00:10,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:00:10,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:00:10,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:00:10,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:00:10,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:00:10,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:00:11,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:00:11,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:00:11,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:00:11,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:00:11,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:00:11,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:00:11,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:00:11,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:00:11,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:00:11,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:00:11,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:00:11,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:00:11,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:00:11,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:00:11,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:00:11,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:00:11,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:00:11,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:00:11,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:00:11,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 16:00:11,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:00:11,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:00:11,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:00:11,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:00:11,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:00:11,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:00:11,074 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:00:11,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:00:11,075 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:00:11,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:00:11,076 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:00:11,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:00:11,077 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:00:11,077 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:00:11,077 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:00:11,077 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:00:11,078 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:00:11,078 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:00:11,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:00:11,079 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:00:11,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:00:11,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:00:11,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:00:11,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:00:11,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:00:11,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:00:11,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:00:11,082 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:00:11,082 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:00:11,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:00:11,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:00:11,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:00:11,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:00:11,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:00:11,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:00:11,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:00:11,084 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:00:11,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:00:11,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:00:11,085 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:00:11,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:00:11,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:00:11,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:00:11,085 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_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 [2022-11-16 16:00:11,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:00:11,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:00:11,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:00:11,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:00:11,411 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:00:11,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-16 16:00:11,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/data/5501e0817/02c50520e3a749d49cfa108abb3fb50f/FLAG229cc423f [2022-11-16 16:00:12,001 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:00:12,001 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-16 16:00:12,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/data/5501e0817/02c50520e3a749d49cfa108abb3fb50f/FLAG229cc423f [2022-11-16 16:00:12,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/data/5501e0817/02c50520e3a749d49cfa108abb3fb50f [2022-11-16 16:00:12,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:00:12,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:00:12,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:00:12,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:00:12,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:00:12,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbc8eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12, skipping insertion in model container [2022-11-16 16:00:12,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:00:12,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:00:12,656 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-16 16:00:12,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:00:12,668 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:00:12,706 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-16 16:00:12,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:00:12,720 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:00:12,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12 WrapperNode [2022-11-16 16:00:12,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:00:12,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:00:12,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:00:12,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:00:12,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,792 INFO L138 Inliner]: procedures = 13, calls = 93, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 234 [2022-11-16 16:00:12,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:00:12,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:00:12,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:00:12,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:00:12,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,858 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:00:12,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:00:12,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:00:12,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:00:12,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (1/1) ... [2022-11-16 16:00:12,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:00:12,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:00:12,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:00:12,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:00:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:00:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:00:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:00:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:00:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-16 16:00:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-16 16:00:13,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:00:13,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:00:13,457 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:00:13,505 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:00:13,508 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:00:13,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:00:13 BoogieIcfgContainer [2022-11-16 16:00:13,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:00:13,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:00:13,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:00:13,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:00:13,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:00:12" (1/3) ... [2022-11-16 16:00:13,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79768903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:00:13, skipping insertion in model container [2022-11-16 16:00:13,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:12" (2/3) ... [2022-11-16 16:00:13,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79768903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:00:13, skipping insertion in model container [2022-11-16 16:00:13,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:00:13" (3/3) ... [2022-11-16 16:00:13,542 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2022-11-16 16:00:13,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:00:13,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-16 16:00:13,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:00:13,623 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;@64669200, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:00:13,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-16 16:00:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 89 states have internal predecessors, (96), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-16 16:00:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-16 16:00:13,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:00:13,649 INFO L195 NwaCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:00:13,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-16 16:00:13,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:00:13,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1511556133, now seen corresponding path program 1 times [2022-11-16 16:00:13,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:00:13,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235531925] [2022-11-16 16:00:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:00:13,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:00:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:00:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-16 16:00:15,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:00:15,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235531925] [2022-11-16 16:00:15,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235531925] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:00:15,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205607665] [2022-11-16 16:00:15,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:00:15,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:00:15,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:00:15,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:00:15,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:00:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:00:15,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 16:00:15,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:00:16,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-16 16:00:16,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:00:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-16 16:00:16,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205607665] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:00:16,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1732455145] [2022-11-16 16:00:16,738 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-16 16:00:16,738 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:00:16,743 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:00:16,749 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:00:16,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:00:46,898 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-16 16:00:46,899 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:02:21,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1732455145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:02:21,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:02:21,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [5, 4, 4] total 104 [2022-11-16 16:02:21,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797535533] [2022-11-16 16:02:21,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:02:21,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-11-16 16:02:21,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:02:21,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-11-16 16:02:21,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5238, Invalid=5682, Unknown=0, NotChecked=0, Total=10920 [2022-11-16 16:02:21,104 INFO L87 Difference]: Start difference. First operand has 177 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 89 states have internal predecessors, (96), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-16 16:02:24,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:02:24,588 INFO L93 Difference]: Finished difference Result 177 states and 268 transitions. [2022-11-16 16:02:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-16 16:02:24,590 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 255 [2022-11-16 16:02:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:02:24,601 INFO L225 Difference]: With dead ends: 177 [2022-11-16 16:02:24,601 INFO L226 Difference]: Without dead ends: 159 [2022-11-16 16:02:24,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 663 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 94.2s TimeCoverageRelationStatistics Valid=5238, Invalid=5682, Unknown=0, NotChecked=0, Total=10920 [2022-11-16 16:02:24,610 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 644 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:02:24,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 216 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 16:02:24,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-16 16:02:24,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-16 16:02:24,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 72 states have internal predecessors, (78), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-16 16:02:24,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 248 transitions. [2022-11-16 16:02:24,811 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 248 transitions. Word has length 255 [2022-11-16 16:02:24,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:02:24,813 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 248 transitions. [2022-11-16 16:02:24,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-16 16:02:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 248 transitions. [2022-11-16 16:02:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-16 16:02:24,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:02:24,821 INFO L195 NwaCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:02:24,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:02:25,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:02:25,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-16 16:02:25,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:02:25,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1963470602, now seen corresponding path program 1 times [2022-11-16 16:02:25,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:02:25,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077613490] [2022-11-16 16:02:25,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:02:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:02:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:02:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-16 16:02:25,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:02:25,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077613490] [2022-11-16 16:02:25,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077613490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:02:25,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131234462] [2022-11-16 16:02:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:02:25,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:02:25,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:02:25,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:02:25,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:02:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:02:25,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 16:02:25,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:02:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-16 16:02:26,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:02:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-16 16:02:26,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131234462] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:02:26,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [25252493] [2022-11-16 16:02:26,593 INFO L159 IcfgInterpreter]: Started Sifa with 103 locations of interest [2022-11-16 16:02:26,594 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:02:26,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:02:26,596 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:02:26,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:02:50,021 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-16 16:02:50,025 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:04:27,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [25252493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:04:27,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:04:27,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [99] imperfect sequences [5, 5, 5] total 105 [2022-11-16 16:04:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916613213] [2022-11-16 16:04:27,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:04:27,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-16 16:04:27,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:04:27,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-16 16:04:27,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-16 16:04:27,959 INFO L87 Difference]: Start difference. First operand 159 states and 248 transitions. Second operand has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-16 16:04:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:04:32,016 INFO L93 Difference]: Finished difference Result 160 states and 249 transitions. [2022-11-16 16:04:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-16 16:04:32,022 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 258 [2022-11-16 16:04:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:04:32,025 INFO L225 Difference]: With dead ends: 160 [2022-11-16 16:04:32,025 INFO L226 Difference]: Without dead ends: 158 [2022-11-16 16:04:32,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 669 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 97.9s TimeCoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-16 16:04:32,030 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 490 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:04:32,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 199 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-16 16:04:32,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-16 16:04:32,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-11-16 16:04:32,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 70 states have internal predecessors, (76), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-16 16:04:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 246 transitions. [2022-11-16 16:04:32,132 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 246 transitions. Word has length 258 [2022-11-16 16:04:32,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:04:32,134 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 246 transitions. [2022-11-16 16:04:32,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-16 16:04:32,134 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 246 transitions. [2022-11-16 16:04:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-16 16:04:32,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:04:32,139 INFO L195 NwaCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:04:32,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 16:04:32,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-16 16:04:32,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-16 16:04:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:04:32,347 INFO L85 PathProgramCache]: Analyzing trace with hash -626372484, now seen corresponding path program 1 times [2022-11-16 16:04:32,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:04:32,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609953907] [2022-11-16 16:04:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:04:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:04:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:04:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 6 proven. 150 refuted. 0 times theorem prover too weak. 6164 trivial. 0 not checked. [2022-11-16 16:04:32,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:04:32,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609953907] [2022-11-16 16:04:32,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609953907] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:04:32,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282869955] [2022-11-16 16:04:32,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:04:32,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:04:32,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:04:32,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:04:32,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:04:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:04:33,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 16:04:33,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:04:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-16 16:04:33,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:04:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-16 16:04:33,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282869955] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:04:33,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [220371838] [2022-11-16 16:04:33,805 INFO L159 IcfgInterpreter]: Started Sifa with 108 locations of interest [2022-11-16 16:04:33,805 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:04:33,806 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:04:33,807 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:04:33,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:04:57,579 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-16 16:04:57,597 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:06:50,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [220371838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:06:50,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:06:50,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [5, 5, 5] total 111 [2022-11-16 16:06:50,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533676143] [2022-11-16 16:06:50,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:06:50,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-11-16 16:06:50,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:06:50,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-11-16 16:06:50,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5761, Invalid=6671, Unknown=0, NotChecked=0, Total=12432 [2022-11-16 16:06:50,393 INFO L87 Difference]: Start difference. First operand 157 states and 246 transitions. Second operand has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-16 16:06:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:06:55,827 INFO L93 Difference]: Finished difference Result 168 states and 259 transitions. [2022-11-16 16:06:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-16 16:06:55,828 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 265 [2022-11-16 16:06:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:06:55,830 INFO L225 Difference]: With dead ends: 168 [2022-11-16 16:06:55,831 INFO L226 Difference]: Without dead ends: 166 [2022-11-16 16:06:55,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 685 SyntacticMatches, 4 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 112.7s TimeCoverageRelationStatistics Valid=5761, Invalid=6671, Unknown=0, NotChecked=0, Total=12432 [2022-11-16 16:06:55,835 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 477 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:06:55,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 199 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-16 16:06:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-16 16:06:55,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-11-16 16:06:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 76 states have internal predecessors, (83), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-16 16:06:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 255 transitions. [2022-11-16 16:06:55,968 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 255 transitions. Word has length 265 [2022-11-16 16:06:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:06:55,969 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 255 transitions. [2022-11-16 16:06:55,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-16 16:06:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 255 transitions. [2022-11-16 16:06:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-16 16:06:55,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:55,975 INFO L195 NwaCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:06:55,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 16:06:56,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:56,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-16 16:06:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:56,186 INFO L85 PathProgramCache]: Analyzing trace with hash 446463424, now seen corresponding path program 1 times [2022-11-16 16:06:56,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:56,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552795542] [2022-11-16 16:06:56,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:56,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-16 16:06:56,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:06:56,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552795542] [2022-11-16 16:06:56,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552795542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:06:56,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687120659] [2022-11-16 16:06:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:56,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:56,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:56,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:56,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:06:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:56,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 16:06:56,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:06:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-16 16:06:57,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:06:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-16 16:06:57,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687120659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:06:57,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1401764381] [2022-11-16 16:06:57,680 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2022-11-16 16:06:57,681 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:06:57,681 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:06:57,682 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:06:57,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:07:22,125 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-16 16:07:22,139 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:09:20,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1401764381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:20,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:09:20,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [5, 5, 5] total 110 [2022-11-16 16:09:20,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264470932] [2022-11-16 16:09:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:20,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-11-16 16:09:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-11-16 16:09:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-16 16:09:20,517 INFO L87 Difference]: Start difference. First operand 164 states and 255 transitions. Second operand has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-16 16:09:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:09:25,564 INFO L93 Difference]: Finished difference Result 166 states and 257 transitions. [2022-11-16 16:09:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-11-16 16:09:25,565 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 267 [2022-11-16 16:09:25,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:09:25,568 INFO L225 Difference]: With dead ends: 166 [2022-11-16 16:09:25,568 INFO L226 Difference]: Without dead ends: 164 [2022-11-16 16:09:25,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 689 SyntacticMatches, 6 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 118.3s TimeCoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-16 16:09:25,573 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 406 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:09:25,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 198 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-16 16:09:25,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-16 16:09:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2022-11-16 16:09:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 68 states have internal predecessors, (74), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-16 16:09:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 244 transitions. [2022-11-16 16:09:25,673 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 244 transitions. Word has length 267 [2022-11-16 16:09:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:09:25,674 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 244 transitions. [2022-11-16 16:09:25,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-16 16:09:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 244 transitions. [2022-11-16 16:09:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-16 16:09:25,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:25,679 INFO L195 NwaCegarLoop]: trace histogram [81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:09:25,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:09:25,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:09:25,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-16 16:09:25,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash -305712050, now seen corresponding path program 1 times [2022-11-16 16:09:25,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:25,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382453036] [2022-11-16 16:09:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:25,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-16 16:09:26,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:26,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382453036] [2022-11-16 16:09:26,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382453036] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:09:26,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560287482] [2022-11-16 16:09:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:26,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:09:26,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:09:26,339 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:09:26,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:09:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:26,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 16:09:26,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:09:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-16 16:09:26,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:09:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-16 16:09:27,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560287482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:09:27,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [631510427] [2022-11-16 16:09:27,324 INFO L159 IcfgInterpreter]: Started Sifa with 113 locations of interest [2022-11-16 16:09:27,324 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:09:27,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:09:27,325 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:09:27,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:09:52,643 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-16 16:09:52,645 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:12:05,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [631510427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:12:05,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:12:05,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [107] imperfect sequences [5, 5, 5] total 113 [2022-11-16 16:12:05,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349183053] [2022-11-16 16:12:05,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:12:05,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-11-16 16:12:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:12:05,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-11-16 16:12:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-16 16:12:05,967 INFO L87 Difference]: Start difference. First operand 155 states and 244 transitions. Second operand has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-16 16:12:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:12:12,599 INFO L93 Difference]: Finished difference Result 174 states and 267 transitions. [2022-11-16 16:12:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 16:12:12,601 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Word has length 272 [2022-11-16 16:12:12,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:12:12,603 INFO L225 Difference]: With dead ends: 174 [2022-11-16 16:12:12,604 INFO L226 Difference]: Without dead ends: 172 [2022-11-16 16:12:12,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 701 SyntacticMatches, 6 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 133.3s TimeCoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-16 16:12:12,607 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 380 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:12:12,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 185 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-16 16:12:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-16 16:12:12,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2022-11-16 16:12:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 78 states have internal predecessors, (86), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-16 16:12:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 260 transitions. [2022-11-16 16:12:12,758 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 260 transitions. Word has length 272 [2022-11-16 16:12:12,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:12:12,759 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 260 transitions. [2022-11-16 16:12:12,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-16 16:12:12,760 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 260 transitions. [2022-11-16 16:12:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-16 16:12:12,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:12:12,765 INFO L195 NwaCegarLoop]: trace histogram [81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:12:12,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:12:12,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:12:12,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-16 16:12:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:12:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1473102866, now seen corresponding path program 1 times [2022-11-16 16:12:12,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:12:12,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022940321] [2022-11-16 16:12:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:12:12,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:12:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:12:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-16 16:12:13,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:12:13,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022940321] [2022-11-16 16:12:13,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022940321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:12:13,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410311954] [2022-11-16 16:12:13,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:12:13,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:12:13,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:12:13,474 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:12:13,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8c0bd9-e0e1-435b-aa12-12aec21a11f8/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 16:12:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:12:13,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 16:12:13,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:12:14,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-16 16:12:14,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:12:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-16 16:12:14,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410311954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:12:14,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [485849863] [2022-11-16 16:12:14,622 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2022-11-16 16:12:14,623 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:12:14,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:12:14,623 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:12:14,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:12:41,229 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-16 16:12:41,230 INFO L180 IcfgInterpreter]: Interpretation finished