./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d801f0525ca26a676000831cf03fb7a7e79d5c4d235bd41da197ed6559b3bbff --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:03:47,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:03:47,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:03:47,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:03:47,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:03:47,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:03:47,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:03:47,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:03:47,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:03:47,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:03:47,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:03:47,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:03:47,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:03:47,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:03:47,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:03:47,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:03:47,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:03:47,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:03:47,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:03:47,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:03:47,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:03:47,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:03:47,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:03:47,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:03:47,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:03:47,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:03:47,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:03:47,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:03:47,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:03:47,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:03:47,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:03:47,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:03:47,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:03:47,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:03:47,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:03:47,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:03:47,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:03:47,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:03:47,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:03:47,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:03:47,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:03:47,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 06:03:47,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:03:47,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:03:47,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:03:47,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:03:47,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:03:47,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:03:47,312 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:03:47,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:03:47,313 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:03:47,313 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:03:47,313 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:03:47,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:03:47,314 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:03:47,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:03:47,314 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:03:47,314 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:03:47,314 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:03:47,315 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:03:47,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:03:47,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:03:47,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:03:47,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:03:47,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:03:47,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:03:47,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:03:47,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:03:47,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:03:47,317 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:03:47,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:03:47,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:03:47,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:03:47,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:03:47,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:03:47,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:03:47,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:03:47,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:03:47,324 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:03:47,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:03:47,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:03:47,324 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:03:47,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:03:47,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:03:47,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:03:47,325 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_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d801f0525ca26a676000831cf03fb7a7e79d5c4d235bd41da197ed6559b3bbff [2022-12-14 06:03:47,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:03:47,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:03:47,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:03:47,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:03:47,538 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:03:47,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-regression/test22-3.c [2022-12-14 06:03:50,076 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:03:50,216 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:03:50,217 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/sv-benchmarks/c/ldv-regression/test22-3.c [2022-12-14 06:03:50,221 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/data/335afd868/e62769c583a74f31aa5edad1f529204c/FLAG4dda646a5 [2022-12-14 06:03:50,638 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/data/335afd868/e62769c583a74f31aa5edad1f529204c [2022-12-14 06:03:50,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:03:50,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:03:50,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:03:50,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:03:50,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:03:50,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f8f750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50, skipping insertion in model container [2022-12-14 06:03:50,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:03:50,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:03:50,773 WARN L237 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_5170b59c-731a-4ed4-a0be-a87c3b62cf70/sv-benchmarks/c/ldv-regression/test22-3.c[1204,1217] [2022-12-14 06:03:50,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:50,780 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:03:50,793 WARN L237 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_5170b59c-731a-4ed4-a0be-a87c3b62cf70/sv-benchmarks/c/ldv-regression/test22-3.c[1204,1217] [2022-12-14 06:03:50,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:50,803 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:03:50,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50 WrapperNode [2022-12-14 06:03:50,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:03:50,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:03:50,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:03:50,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:03:50,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,829 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2022-12-14 06:03:50,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:03:50,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:03:50,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:03:50,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:03:50,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,846 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:03:50,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:03:50,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:03:50,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:03:50,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (1/1) ... [2022-12-14 06:03:50,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:03:50,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:50,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:03:50,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:03:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:03:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 06:03:50,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 06:03:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:03:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:03:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-12-14 06:03:50,907 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-12-14 06:03:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:03:50,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:03:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:03:50,969 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:03:50,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:03:51,117 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:03:51,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:03:51,146 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:03:51,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:51 BoogieIcfgContainer [2022-12-14 06:03:51,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:03:51,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:03:51,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:03:51,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:03:51,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:03:50" (1/3) ... [2022-12-14 06:03:51,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8ed155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:51, skipping insertion in model container [2022-12-14 06:03:51,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:50" (2/3) ... [2022-12-14 06:03:51,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8ed155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:51, skipping insertion in model container [2022-12-14 06:03:51,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:51" (3/3) ... [2022-12-14 06:03:51,154 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-3.c [2022-12-14 06:03:51,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:03:51,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 06:03:51,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:03:51,208 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;@5eb4c739, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:03:51,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 06:03:51,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:03:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 06:03:51,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:51,217 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:51,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:03:51,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:51,221 INFO L85 PathProgramCache]: Analyzing trace with hash 620386555, now seen corresponding path program 1 times [2022-12-14 06:03:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:03:51,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21984595] [2022-12-14 06:03:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:51,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:03:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:03:52,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:03:52,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21984595] [2022-12-14 06:03:52,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21984595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:52,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:52,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:03:52,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515560300] [2022-12-14 06:03:52,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:52,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 06:03:52,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:03:52,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 06:03:52,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:03:52,095 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 06:03:52,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:52,372 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-12-14 06:03:52,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:03:52,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 23 [2022-12-14 06:03:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:52,379 INFO L225 Difference]: With dead ends: 38 [2022-12-14 06:03:52,379 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 06:03:52,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:03:52,383 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 58 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:52,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 99 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:03:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 06:03:52,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 06:03:52,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:03:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-12-14 06:03:52,410 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 23 [2022-12-14 06:03:52,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:52,411 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-12-14 06:03:52,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 06:03:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-12-14 06:03:52,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:03:52,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:52,412 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:52,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:03:52,413 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:03:52,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2052114080, now seen corresponding path program 1 times [2022-12-14 06:03:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:03:52,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862909940] [2022-12-14 06:03:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:52,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:03:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:03:52,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:03:52,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862909940] [2022-12-14 06:03:52,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862909940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:52,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:52,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:03:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311744262] [2022-12-14 06:03:52,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:52,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:03:52,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:03:52,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:03:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:03:52,712 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 06:03:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:52,811 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-12-14 06:03:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:03:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2022-12-14 06:03:52,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:52,813 INFO L225 Difference]: With dead ends: 27 [2022-12-14 06:03:52,813 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 06:03:52,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:03:52,814 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:52,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 50 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:03:52,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 06:03:52,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 06:03:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:03:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-12-14 06:03:52,822 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 24 [2022-12-14 06:03:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:52,822 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-12-14 06:03:52,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 06:03:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 06:03:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 06:03:52,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:52,823 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:52,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:03:52,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:03:52,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash -33870270, now seen corresponding path program 1 times [2022-12-14 06:03:52,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:03:52,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996455388] [2022-12-14 06:03:52,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:52,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:03:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 06:03:52,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:03:52,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996455388] [2022-12-14 06:03:52,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996455388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:52,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:52,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:03:52,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584488296] [2022-12-14 06:03:52,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:52,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:03:52,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:03:52,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:03:52,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:03:52,871 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 06:03:52,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:52,895 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-12-14 06:03:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:03:52,895 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 27 [2022-12-14 06:03:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:52,896 INFO L225 Difference]: With dead ends: 26 [2022-12-14 06:03:52,896 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 06:03:52,896 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 [2022-12-14 06:03:52,897 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:52,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 43 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:03:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 06:03:52,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 06:03:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:03:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-12-14 06:03:52,902 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 27 [2022-12-14 06:03:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:52,902 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-12-14 06:03:52,902 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 06:03:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-12-14 06:03:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:03:52,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:52,903 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:52,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:03:52,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:03:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:52,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1049978297, now seen corresponding path program 1 times [2022-12-14 06:03:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:03:52,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651177629] [2022-12-14 06:03:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:03:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:03:53,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:03:53,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651177629] [2022-12-14 06:03:53,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651177629] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:03:53,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834930754] [2022-12-14 06:03:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:53,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:03:53,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:53,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:03:53,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:03:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:53,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 06:03:53,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:53,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:53,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 17 [2022-12-14 06:03:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:53,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-12-14 06:03:53,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:53,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:03:53,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2022-12-14 06:03:53,855 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 06:03:53,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:53,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834930754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:53,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:03:53,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 17 [2022-12-14 06:03:53,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880493031] [2022-12-14 06:03:53,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:53,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:03:53,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:03:53,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:03:53,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:03:53,858 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 06:03:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:54,074 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-12-14 06:03:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:03:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2022-12-14 06:03:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:54,075 INFO L225 Difference]: With dead ends: 30 [2022-12-14 06:03:54,075 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:03:54,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-12-14 06:03:54,076 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:54,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:03:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:03:54,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 06:03:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:03:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-12-14 06:03:54,081 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 28 [2022-12-14 06:03:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:54,082 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-12-14 06:03:54,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 06:03:54,082 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-12-14 06:03:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:03:54,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:54,082 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:54,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:54,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:03:54,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 06:03:54,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2056536686, now seen corresponding path program 1 times [2022-12-14 06:03:54,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:03:54,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571439892] [2022-12-14 06:03:54,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:54,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:03:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 06:03:54,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:03:54,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571439892] [2022-12-14 06:03:54,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571439892] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:03:54,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940243006] [2022-12-14 06:03:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:54,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:03:54,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:54,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:03:54,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:03:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:54,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 06:03:54,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:54,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 17 [2022-12-14 06:03:54,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:54,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-12-14 06:03:55,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:55,118 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:03:55,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2022-12-14 06:03:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 06:03:55,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:03:55,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940243006] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:03:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1915048269] [2022-12-14 06:03:55,511 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 06:03:55,512 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:03:55,514 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:03:55,518 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:03:55,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:03:55,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:55,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 65 [2022-12-14 06:03:55,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:55,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:55,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 86 [2022-12-14 06:03:56,826 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 109 for LOIs [2022-12-14 06:03:56,839 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 88 for LOIs [2022-12-14 06:03:56,853 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:04:01,030 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '703#(and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |~#d1~0.offset| 0) (< |ULTIMATE.start_main_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 06:04:01,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:04:01,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:04:01,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 19 [2022-12-14 06:04:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742370534] [2022-12-14 06:04:01,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 06:04:01,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 06:04:01,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:04:01,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 06:04:01,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1881, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 06:04:01,032 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 5 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-14 06:04:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:01,874 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-12-14 06:04:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 06:04:01,874 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 5 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) Word has length 32 [2022-12-14 06:04:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:01,874 INFO L225 Difference]: With dead ends: 35 [2022-12-14 06:04:01,874 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:04:01,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=522, Invalid=3018, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 06:04:01,878 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 109 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:01,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 60 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:04:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:04:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:04:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:04:01,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-12-14 06:04:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:01,879 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:04:01,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 5 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-14 06:04:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:04:01,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:04:01,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 06:04:01,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 06:04:01,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 06:04:01,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 06:04:01,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:04:02,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:04:02,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:04:02,356 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 28 31) the Hoare annotation is: true [2022-12-14 06:04:02,356 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 28 31) no Hoare annotation was computed. [2022-12-14 06:04:02,356 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-12-14 06:04:02,356 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 38 58) the Hoare annotation is: (and (<= 0 (+ 2147483638 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~pd3~0#1.base|) |ULTIMATE.start_main_~pd3~0#1.offset|) 2147483638)) (<= |~#d1~0.offset| |~#d2~0.offset|) (<= 0 (+ (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483638)) (< |~#d2~0.offset| (+ |~#d1~0.offset| 1))) [2022-12-14 06:04:02,356 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 06:04:02,356 INFO L895 garLoopResultBuilder]: At program point L49(lines 49 51) the Hoare annotation is: (and (<= 0 (+ 2147483638 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~pd3~0#1.base|) |ULTIMATE.start_main_~pd3~0#1.offset|) 2147483638)) (<= |~#d1~0.offset| |~#d2~0.offset|) (<= 0 (+ (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483638)) (< |~#d2~0.offset| (+ |~#d1~0.offset| 1))) [2022-12-14 06:04:02,356 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-12-14 06:04:02,357 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2022-12-14 06:04:02,357 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|)) (.cse0 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (and (<= 0 (+ 2147483638 .cse0)) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse1 2147483647) (<= 0 (+ .cse1 2147483638)) (= 5 |~#d2~0.base|) (<= .cse0 2147483647) (= |~#d1~0.offset| 0))) [2022-12-14 06:04:02,357 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-12-14 06:04:02,357 INFO L895 garLoopResultBuilder]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|)) (.cse0 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (and (<= 0 (+ 2147483638 .cse0)) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse1 2147483647) (<= 0 (+ .cse1 2147483638)) (= 5 |~#d2~0.base|) (or (and (= |~#d2~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d2~0.base| |ULTIMATE.start_main_~pd1~0#1.base|)) (and (= |~#d1~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d1~0.base| |ULTIMATE.start_main_~pd1~0#1.base|))) (<= .cse0 2147483647) (= |~#d1~0.offset| 0))) [2022-12-14 06:04:02,357 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2022-12-14 06:04:02,357 INFO L895 garLoopResultBuilder]: At program point L41-4(line 41) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|)) (.cse0 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (and (<= 0 (+ 2147483638 .cse0)) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse1 2147483647) (<= 0 (+ .cse1 2147483638)) (= 5 |~#d2~0.base|) (or (and (= |~#d2~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d2~0.base| |ULTIMATE.start_main_~pd1~0#1.base|)) (and (= |~#d1~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d1~0.base| |ULTIMATE.start_main_~pd1~0#1.base|))) (<= .cse0 2147483647) (= |~#d1~0.offset| 0))) [2022-12-14 06:04:02,357 INFO L899 garLoopResultBuilder]: For program point L41-5(line 41) no Hoare annotation was computed. [2022-12-14 06:04:02,357 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 06:04:02,358 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:04:02,358 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|)) (.cse0 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (and (<= 0 (+ 2147483638 .cse0)) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse1 2147483647) (= 5 |~#d2~0.base|) (<= |ULTIMATE.start_init_#t~mem9#1| .cse1) (<= .cse0 2147483647) (= |~#d1~0.offset| 0))) [2022-12-14 06:04:02,358 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-12-14 06:04:02,358 INFO L895 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483647) (= 5 |~#d2~0.base|) (<= .cse0 2147483647) (<= |ULTIMATE.start_init_#t~mem6#1| .cse0) (= |~#d1~0.offset| 0))) [2022-12-14 06:04:02,358 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-12-14 06:04:02,358 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 46 48) no Hoare annotation was computed. [2022-12-14 06:04:02,358 INFO L895 garLoopResultBuilder]: At program point L46-3(lines 46 48) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (and (<= 0 (+ 2147483638 .cse0)) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= 0 (+ (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483638)) (= 5 |~#d2~0.base|) (or (and (= |~#d2~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d2~0.base| |ULTIMATE.start_main_~pd1~0#1.base|)) (and (= |~#d1~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d1~0.base| |ULTIMATE.start_main_~pd1~0#1.base|))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= .cse0 2147483647) (<= (select (select |#memory_int| 5) 0) 2147483647) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 2147483647) (let ((.cse1 (= |ULTIMATE.start_main_~pd3~0#1.offset| 0))) (or (and (= 4 |ULTIMATE.start_main_~pd3~0#1.base|) .cse1) (and (= 5 |ULTIMATE.start_main_~pd3~0#1.base|) .cse1))) (= |~#d1~0.offset| 0))) [2022-12-14 06:04:02,358 INFO L895 garLoopResultBuilder]: At program point L46-4(lines 46 48) the Hoare annotation is: (and (<= 0 (+ 2147483638 (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|))) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~pd3~0#1.base|) |ULTIMATE.start_main_~pd3~0#1.offset|) 2147483638)) (<= |~#d1~0.offset| |~#d2~0.offset|) (<= 0 (+ (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483638)) (< |~#d2~0.offset| (+ |~#d1~0.offset| 1))) [2022-12-14 06:04:02,358 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:04:02,359 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-12-14 06:04:02,359 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-12-14 06:04:02,359 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-12-14 06:04:02,359 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 52) no Hoare annotation was computed. [2022-12-14 06:04:02,359 INFO L899 garLoopResultBuilder]: For program point L43-4(lines 43 52) no Hoare annotation was computed. [2022-12-14 06:04:02,359 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2022-12-14 06:04:02,359 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-12-14 06:04:02,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 06:04:02,363 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:04:02,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:04:02 BoogieIcfgContainer [2022-12-14 06:04:02,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:04:02,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:04:02,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:04:02,376 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:04:02,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:51" (3/4) ... [2022-12-14 06:04:02,379 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:04:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2022-12-14 06:04:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 06:04:02,385 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-14 06:04:02,385 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 06:04:02,385 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:04:02,385 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:04:02,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:04:02,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:04:02,411 INFO L158 Benchmark]: Toolchain (without parser) took 11769.76ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 117.9MB in the beginning and 123.9MB in the end (delta: -6.0MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,411 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:04:02,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.89ms. Allocated memory is still 167.8MB. Free memory was 117.5MB in the beginning and 106.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.30ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 105.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,411 INFO L158 Benchmark]: Boogie Preprocessor took 17.62ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,412 INFO L158 Benchmark]: RCFGBuilder took 299.92ms. Allocated memory is still 167.8MB. Free memory was 103.7MB in the beginning and 131.0MB in the end (delta: -27.2MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,412 INFO L158 Benchmark]: TraceAbstraction took 11226.08ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 129.9MB in the beginning and 128.1MB in the end (delta: 1.8MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,412 INFO L158 Benchmark]: Witness Printer took 34.38ms. Allocated memory is still 243.3MB. Free memory was 127.0MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:04:02,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.89ms. Allocated memory is still 167.8MB. Free memory was 117.5MB in the beginning and 106.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.30ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 105.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.62ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.92ms. Allocated memory is still 167.8MB. Free memory was 103.7MB in the beginning and 131.0MB in the end (delta: -27.2MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11226.08ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 129.9MB in the beginning and 128.1MB in the end (delta: 1.8MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. * Witness Printer took 34.38ms. Allocated memory is still 243.3MB. Free memory was 127.0MB in the beginning and 123.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: 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 3 procedures, 31 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 298 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 575 IncrementalHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 74 mSDtfsCounter, 575 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 20 NumberOfFragments, 439 HoareAnnotationTreeSize, 14 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 769 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 2304 SizeOfPredicates, 14 NumberOfNonLiveVariables, 321 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 53/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((0 <= 2147483638 + unknown-#memory_int-unknown[d1][d1] && 0 <= unknown-#memory_int-unknown[pd3][pd3] + 2147483638) && d1 <= d2) && 0 <= unknown-#memory_int-unknown[d2][d2] + 2147483638) && d2 < d1 + 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((0 <= 2147483638 + unknown-#memory_int-unknown[d1][d1] && 0 <= unknown-#memory_int-unknown[pd3][pd3] + 2147483638) && d1 <= d2) && 0 <= unknown-#memory_int-unknown[d2][d2] + 2147483638) && d2 < d1 + 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((0 <= 2147483638 + unknown-#memory_int-unknown[d1][d1] && d2 == 0) && d1 == 4) && 0 <= unknown-#memory_int-unknown[d2][d2] + 2147483638) && 5 == d2) && ((d2 == pd1 && d2 == pd1) || (d1 == pd1 && d1 == pd1))) && 0 <= i + 2147483648) && unknown-#memory_int-unknown[d1][d1] <= 2147483647) && unknown-#memory_int-unknown[5][0] <= 2147483647) && unknown-#memory_int-unknown[pa][pa] <= 2147483647) && ((4 == pd3 && pd3 == 0) || (5 == pd3 && pd3 == 0))) && d1 == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((0 <= 2147483638 + unknown-#memory_int-unknown[d1][d1] && 0 <= unknown-#memory_int-unknown[pd3][pd3] + 2147483638) && d1 <= d2) && 0 <= unknown-#memory_int-unknown[d2][d2] + 2147483638) && d2 < d1 + 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 06:04:02,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5170b59c-731a-4ed4-a0be-a87c3b62cf70/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE