./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur --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 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:32:12,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:32:12,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:32:13,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:32:13,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:32:13,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:32:13,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:32:13,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:32:13,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:32:13,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:32:13,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:32:13,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:32:13,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:32:13,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:32:13,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:32:13,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:32:13,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:32:13,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:32:13,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:32:13,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:32:13,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:32:13,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:32:13,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:32:13,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:32:13,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:32:13,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:32:13,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:32:13,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:32:13,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:32:13,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:32:13,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:32:13,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:32:13,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:32:13,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:32:13,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:32:13,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:32:13,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:32:13,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:32:13,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:32:13,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:32:13,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:32:13,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:32:13,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:32:13,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:32:13,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:32:13,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:32:13,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:32:13,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:32:13,139 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:32:13,139 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:32:13,140 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:32:13,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:32:13,141 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:32:13,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:32:13,141 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:32:13,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:32:13,142 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:32:13,142 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:32:13,142 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:32:13,142 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:32:13,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:32:13,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:32:13,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:32:13,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:32:13,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:32:13,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:32:13,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:32:13,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:32:13,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:32:13,146 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:32:13,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:32:13,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:32:13,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:32:13,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:32:13,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:32:13,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:32:13,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:32:13,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:32:13,148 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:32:13,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:32:13,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:32:13,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:32:13,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:32:13,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:32:13,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:32:13,149 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_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e [2022-11-25 23:32:13,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:32:13,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:32:13,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:32:13,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:32:13,479 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:32:13,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2022-11-25 23:32:16,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:32:16,704 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:32:16,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2022-11-25 23:32:16,711 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/data/4199b51df/e065c76410424a359fcc93af839fb21d/FLAG4ea1a8060 [2022-11-25 23:32:16,725 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/data/4199b51df/e065c76410424a359fcc93af839fb21d [2022-11-25 23:32:16,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:32:16,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:32:16,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:32:16,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:32:16,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:32:16,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:16,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2f5198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16, skipping insertion in model container [2022-11-25 23:32:16,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:16,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:32:16,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:32:16,917 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_cf32ef45-122c-482b-9bf6-097d347b8967/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2022-11-25 23:32:16,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:32:16,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:32:16,960 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_cf32ef45-122c-482b-9bf6-097d347b8967/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2022-11-25 23:32:16,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:32:16,981 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:32:16,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16 WrapperNode [2022-11-25 23:32:16,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:32:16,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:32:16,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:32:16,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:32:16,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,018 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-11-25 23:32:17,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:32:17,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:32:17,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:32:17,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:32:17,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,045 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:32:17,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:32:17,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:32:17,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:32:17,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (1/1) ... [2022-11-25 23:32:17,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:32:17,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:32:17,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:32:17,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:32:17,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:32:17,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:32:17,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:32:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:32:17,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:32:17,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:32:17,427 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:32:17,455 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:32:17,456 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:32:17,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:17 BoogieIcfgContainer [2022-11-25 23:32:17,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:32:17,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:32:17,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:32:17,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:32:17,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:32:16" (1/3) ... [2022-11-25 23:32:17,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8e7bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:32:17, skipping insertion in model container [2022-11-25 23:32:17,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:16" (2/3) ... [2022-11-25 23:32:17,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8e7bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:32:17, skipping insertion in model container [2022-11-25 23:32:17,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:17" (3/3) ... [2022-11-25 23:32:17,487 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.i [2022-11-25 23:32:17,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:32:17,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 23:32:17,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:32:17,561 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;@4ce4e786, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:32:17,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 23:32:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:17,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:32:17,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:17,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:32:17,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 23:32:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 67499, now seen corresponding path program 1 times [2022-11-25 23:32:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:17,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712369713] [2022-11-25 23:32:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:17,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:17,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712369713] [2022-11-25 23:32:17,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712369713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:17,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:17,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:32:17,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878838467] [2022-11-25 23:32:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:17,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:32:17,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:17,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:32:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:32:17,809 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:17,831 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-25 23:32:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:32:17,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 23:32:17,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:17,842 INFO L225 Difference]: With dead ends: 17 [2022-11-25 23:32:17,842 INFO L226 Difference]: Without dead ends: 10 [2022-11-25 23:32:17,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:32:17,848 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:17,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:32:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-25 23:32:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-25 23:32:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-25 23:32:17,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 3 [2022-11-25 23:32:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:17,881 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-25 23:32:17,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-25 23:32:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:32:17,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:17,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:32:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:32:17,883 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)] === [2022-11-25 23:32:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2092514, now seen corresponding path program 1 times [2022-11-25 23:32:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:17,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668108983] [2022-11-25 23:32:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:17,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:17,895 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:32:17,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55564717] [2022-11-25 23:32:17,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:17,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:32:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:32:17,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:32:17,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:32:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:17,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:32:17,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:32:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:18,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:32:18,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:18,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668108983] [2022-11-25 23:32:18,062 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:32:18,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55564717] [2022-11-25 23:32:18,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55564717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:18,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:18,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:32:18,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964990496] [2022-11-25 23:32:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:18,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:32:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:32:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:18,067 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:18,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:18,100 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-25 23:32:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:32:18,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 23:32:18,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:18,102 INFO L225 Difference]: With dead ends: 14 [2022-11-25 23:32:18,102 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 23:32:18,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:18,104 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:18,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:32:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 23:32:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-25 23:32:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:18,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-25 23:32:18,120 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2022-11-25 23:32:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:18,120 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-25 23:32:18,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-25 23:32:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:32:18,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:18,122 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:32:18,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:32:18,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:32:18,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 23:32:18,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:18,329 INFO L85 PathProgramCache]: Analyzing trace with hash 743209460, now seen corresponding path program 1 times [2022-11-25 23:32:18,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:18,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462635948] [2022-11-25 23:32:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:18,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:18,341 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:32:18,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088662563] [2022-11-25 23:32:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:18,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:32:18,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:32:18,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:32:18,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:32:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:18,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:32:18,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:32:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:18,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:32:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:18,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:18,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462635948] [2022-11-25 23:32:18,744 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:32:18,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088662563] [2022-11-25 23:32:18,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088662563] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:32:18,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1562793869] [2022-11-25 23:32:18,801 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-25 23:32:18,801 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:32:18,806 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:32:18,812 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:32:18,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:32:19,242 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:32:19,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1562793869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:19,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:32:19,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3] total 10 [2022-11-25 23:32:19,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876258603] [2022-11-25 23:32:19,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:19,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:32:19,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:19,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:32:19,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:32:19,705 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:19,752 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-11-25 23:32:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:32:19,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:32:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:19,754 INFO L225 Difference]: With dead ends: 11 [2022-11-25 23:32:19,754 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:32:19,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:32:19,759 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:19,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:32:19,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:32:19,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:32:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:32:19,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-25 23:32:19,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:19,768 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:32:19,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:19,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:32:19,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:32:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 23:32:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 23:32:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 23:32:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 23:32:19,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 23:32:19,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-25 23:32:19,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:32:20,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 23:32:20,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:32:20,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 23:32:20,151 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-25 23:32:20,151 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-25 23:32:20,151 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-11-25 23:32:20,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 23:32:20,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 23:32:20,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:32:20,152 INFO L902 garLoopResultBuilder]: At program point L26(lines 19 27) the Hoare annotation is: true [2022-11-25 23:32:20,152 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-25 23:32:20,152 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-11-25 23:32:20,153 INFO L895 garLoopResultBuilder]: At program point L22-4(lines 22 24) the Hoare annotation is: (and (<= 0 |#NULL.base|) (let ((.cse8 (select |#memory_int| 1))) (let ((.cse0 (= 25 (select |#length| 2))) (.cse1 (= 2 (select |#length| 1))) (.cse2 (= (select |#valid| 1) 1)) (.cse3 (= (select |#valid| 0) 0)) (.cse4 (= (select |#valid| 2) 1)) (.cse5 (= (select .cse8 0) 48)) (.cse6 (= (select .cse8 1) 0)) (.cse7 (< 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (< |ULTIMATE.start_main_~i~0#1| 10) (< 0 (+ |ULTIMATE.start_main_~i~0#1| 10)) .cse6 .cse7) (and .cse0 (< 0 (+ 9 |ULTIMATE.start_main_~i~0#1|)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (< |ULTIMATE.start_main_~i~0#1| 11))))) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|)) [2022-11-25 23:32:20,153 INFO L899 garLoopResultBuilder]: For program point L22-5(lines 22 24) no Hoare annotation was computed. [2022-11-25 23:32:20,157 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:32:20,160 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:32:20,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:32:20 BoogieIcfgContainer [2022-11-25 23:32:20,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:32:20,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:32:20,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:32:20,200 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:32:20,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:17" (3/4) ... [2022-11-25 23:32:20,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:32:20,212 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 23:32:20,213 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 23:32:20,213 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:32:20,213 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:32:20,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:32:20,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:32:20,251 INFO L158 Benchmark]: Toolchain (without parser) took 3521.72ms. Allocated memory is still 146.8MB. Free memory was 116.9MB in the beginning and 113.4MB in the end (delta: 3.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,251 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:32:20,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.40ms. Allocated memory is still 146.8MB. Free memory was 116.9MB in the beginning and 106.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.62ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 105.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,253 INFO L158 Benchmark]: Boogie Preprocessor took 31.24ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,253 INFO L158 Benchmark]: RCFGBuilder took 407.36ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 93.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,256 INFO L158 Benchmark]: TraceAbstraction took 2737.50ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 115.5MB in the end (delta: -22.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,256 INFO L158 Benchmark]: Witness Printer took 51.17ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 113.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:20,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.40ms. Allocated memory is still 146.8MB. Free memory was 116.9MB in the beginning and 106.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.62ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 105.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.24ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.36ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 93.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2737.50ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 115.5MB in the end (delta: -22.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Witness Printer took 51.17ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 113.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 13 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 117 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 1 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 9, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 16, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 16, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 28, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 9, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 97, DAG_COMPRESSION_RETAINED_NODES: 30, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((0 <= #NULL && ((((((((((25 == unknown-#length-unknown[2] && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && i < 10) && 0 < i + 10) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) || (((((((((25 == unknown-#length-unknown[2] && 0 < 9 + i) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && i < 11))) && #NULL <= 0) && #NULL <= 0) && 0 <= #NULL RESULT: Ultimate proved your program to be correct! [2022-11-25 23:32:20,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf32ef45-122c-482b-9bf6-097d347b8967/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE