./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:02:57,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:02:57,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:02:57,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:02:57,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:02:57,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:02:57,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:02:57,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:02:57,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:02:57,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:02:57,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:02:57,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:02:57,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:02:57,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:02:57,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:02:57,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:02:57,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:02:57,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:02:57,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:02:57,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:02:57,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:02:57,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:02:57,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:02:57,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:02:57,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:02:57,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:02:57,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:02:57,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:02:57,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:02:57,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:02:57,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:02:57,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:02:57,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:02:57,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:02:57,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:02:57,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:02:57,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:02:57,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:02:57,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:02:57,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:02:57,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:02:57,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-24 11:02:57,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:02:57,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:02:57,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:02:57,923 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:02:57,923 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:02:57,923 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:02:57,924 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:02:57,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:02:57,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:02:57,924 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:02:57,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:02:57,925 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:02:57,925 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:02:57,925 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:02:57,925 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:02:57,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:02:57,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 11:02:57,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:02:57,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:02:57,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:02:57,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:02:57,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:02:57,928 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-24 11:02:57,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:02:57,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:02:57,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:02:57,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:02:57,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:02:57,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:02:57,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:02:57,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:02:57,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:02:57,930 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:02:57,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:02:57,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:02:57,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:02:57,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:02:57,931 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2021-10-24 11:02:58,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:02:58,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:02:58,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:02:58,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:02:58,231 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:02:58,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-24 11:02:58,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/data/23fa368fd/94d9ace0c5344fdf9e57d2f74a1990dc/FLAGe50d4edcd [2021-10-24 11:02:58,733 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:02:58,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-24 11:02:58,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/data/23fa368fd/94d9ace0c5344fdf9e57d2f74a1990dc/FLAGe50d4edcd [2021-10-24 11:02:59,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/data/23fa368fd/94d9ace0c5344fdf9e57d2f74a1990dc [2021-10-24 11:02:59,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:02:59,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:02:59,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:02:59,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:02:59,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:02:59,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be84331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59, skipping insertion in model container [2021-10-24 11:02:59,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:02:59,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:02:59,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:02:59,351 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:02:59,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:02:59,385 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:02:59,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59 WrapperNode [2021-10-24 11:02:59,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:02:59,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:02:59,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:02:59,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:02:59,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:02:59,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:02:59,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:02:59,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:02:59,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:02:59,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:02:59,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:02:59,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:02:59,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (1/1) ... [2021-10-24 11:02:59,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:02:59,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:02:59,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:02:59,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:02:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:02:59,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:02:59,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:02:59,762 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-24 11:02:59,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:59 BoogieIcfgContainer [2021-10-24 11:02:59,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:02:59,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:02:59,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:02:59,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:02:59,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:02:59" (1/3) ... [2021-10-24 11:02:59,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577135cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:59, skipping insertion in model container [2021-10-24 11:02:59,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:59" (2/3) ... [2021-10-24 11:02:59,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577135cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:59, skipping insertion in model container [2021-10-24 11:02:59,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:59" (3/3) ... [2021-10-24 11:02:59,775 INFO L111 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-10-24 11:02:59,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:02:59,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-24 11:02:59,876 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:02:59,882 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:02:59,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-24 11:02:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:02:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 11:02:59,907 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:02:59,908 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 11:02:59,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 11:02:59,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:02:59,914 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2021-10-24 11:02:59,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:02:59,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12948816] [2021-10-24 11:02:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:02:59,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:02:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:03:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:03:00,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:03:00,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12948816] [2021-10-24 11:03:00,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12948816] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:03:00,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:03:00,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 11:03:00,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984030123] [2021-10-24 11:03:00,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:03:00,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:03:00,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:03:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,075 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:03:00,144 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-10-24 11:03:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:03:00,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 11:03:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:03:00,156 INFO L225 Difference]: With dead ends: 45 [2021-10-24 11:03:00,156 INFO L226 Difference]: Without dead ends: 41 [2021-10-24 11:03:00,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-24 11:03:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2021-10-24 11:03:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-10-24 11:03:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-24 11:03:00,188 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2021-10-24 11:03:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:03:00,189 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-24 11:03:00,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-10-24 11:03:00,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 11:03:00,190 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:03:00,190 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 11:03:00,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 11:03:00,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 11:03:00,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:03:00,192 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2021-10-24 11:03:00,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:03:00,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997950036] [2021-10-24 11:03:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:03:00,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:03:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:03:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:03:00,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:03:00,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997950036] [2021-10-24 11:03:00,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997950036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:03:00,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:03:00,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 11:03:00,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797815726] [2021-10-24 11:03:00,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:03:00,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:03:00,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:03:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,223 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:03:00,281 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-10-24 11:03:00,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:03:00,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 11:03:00,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:03:00,289 INFO L225 Difference]: With dead ends: 50 [2021-10-24 11:03:00,289 INFO L226 Difference]: Without dead ends: 48 [2021-10-24 11:03:00,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-24 11:03:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2021-10-24 11:03:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 38 states have internal predecessors, (50), 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) [2021-10-24 11:03:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2021-10-24 11:03:00,296 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2021-10-24 11:03:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:03:00,297 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-10-24 11:03:00,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-10-24 11:03:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 11:03:00,298 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:03:00,298 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 11:03:00,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 11:03:00,299 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 11:03:00,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:03:00,300 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2021-10-24 11:03:00,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:03:00,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825241836] [2021-10-24 11:03:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:03:00,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:03:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:03:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:03:00,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:03:00,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825241836] [2021-10-24 11:03:00,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825241836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:03:00,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:03:00,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 11:03:00,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362330306] [2021-10-24 11:03:00,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:03:00,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:03:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:03:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,362 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:03:00,384 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-10-24 11:03:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:03:00,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 11:03:00,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:03:00,385 INFO L225 Difference]: With dead ends: 39 [2021-10-24 11:03:00,386 INFO L226 Difference]: Without dead ends: 37 [2021-10-24 11:03:00,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-24 11:03:00,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-24 11:03:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 36 states have internal predecessors, (47), 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) [2021-10-24 11:03:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2021-10-24 11:03:00,392 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2021-10-24 11:03:00,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:03:00,392 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2021-10-24 11:03:00,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,393 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2021-10-24 11:03:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 11:03:00,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:03:00,393 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 11:03:00,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 11:03:00,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 11:03:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:03:00,395 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2021-10-24 11:03:00,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:03:00,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502411865] [2021-10-24 11:03:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:03:00,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:03:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:03:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:03:00,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:03:00,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502411865] [2021-10-24 11:03:00,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502411865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:03:00,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:03:00,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 11:03:00,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918324999] [2021-10-24 11:03:00,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 11:03:00,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:03:00,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 11:03:00,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,423 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:03:00,443 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2021-10-24 11:03:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:03:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 11:03:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:03:00,444 INFO L225 Difference]: With dead ends: 37 [2021-10-24 11:03:00,444 INFO L226 Difference]: Without dead ends: 35 [2021-10-24 11:03:00,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 11:03:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-24 11:03:00,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-24 11:03:00,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 34 states have internal predecessors, (44), 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) [2021-10-24 11:03:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2021-10-24 11:03:00,451 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2021-10-24 11:03:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:03:00,451 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2021-10-24 11:03:00,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2021-10-24 11:03:00,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 11:03:00,474 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:03:00,474 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:03:00,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 11:03:00,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 11:03:00,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:03:00,476 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2021-10-24 11:03:00,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:03:00,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098637847] [2021-10-24 11:03:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:03:00,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:03:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:03:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:03:00,552 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:03:00,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098637847] [2021-10-24 11:03:00,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098637847] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:03:00,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:03:00,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 11:03:00,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800571173] [2021-10-24 11:03:00,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:03:00,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:03:00,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:03:00,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:03:00,555 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:03:00,593 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-10-24 11:03:00,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:03:00,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 11:03:00,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:03:00,594 INFO L225 Difference]: With dead ends: 35 [2021-10-24 11:03:00,594 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 11:03:00,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:03:00,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 11:03:00,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 11:03:00,595 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) [2021-10-24 11:03:00,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 11:03:00,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-24 11:03:00,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:03:00,596 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 11:03:00,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:03:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 11:03:00,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 11:03:00,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 11:03:00,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 11:03:00,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 11:03:00,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:03:00,620 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-10-24 11:03:00,620 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-10-24 11:03:00,620 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-10-24 11:03:00,620 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-10-24 11:03:00,621 INFO L857 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-10-24 11:03:00,621 INFO L857 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-10-24 11:03:00,621 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-10-24 11:03:00,621 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 11:03:00,622 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-10-24 11:03:00,622 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-10-24 11:03:00,622 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-10-24 11:03:00,622 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 11:03:00,622 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2021-10-24 11:03:00,623 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-24 11:03:00,623 INFO L857 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-10-24 11:03:00,623 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2021-10-24 11:03:00,623 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 39) no Hoare annotation was computed. [2021-10-24 11:03:00,624 INFO L853 garLoopResultBuilder]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483648)) [2021-10-24 11:03:00,624 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-24 11:03:00,624 INFO L857 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-10-24 11:03:00,624 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-10-24 11:03:00,625 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-10-24 11:03:00,625 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-10-24 11:03:00,625 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2021-10-24 11:03:00,630 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:03:00,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:03:00 BoogieIcfgContainer [2021-10-24 11:03:00,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:03:00,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:03:00,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:03:00,644 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:03:00,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:59" (3/4) ... [2021-10-24 11:03:00,647 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 11:03:00,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-24 11:03:00,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-24 11:03:00,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:03:00,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:03:00,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:03:00,725 INFO L168 Benchmark]: Toolchain (without parser) took 1555.35 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 73.8 MB in the beginning and 119.1 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:03:00,725 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 111.1 MB. Free memory was 89.7 MB in the beginning and 89.6 MB in the end (delta: 119.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:03:00,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.94 ms. Allocated memory is still 111.1 MB. Free memory was 73.5 MB in the beginning and 87.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:03:00,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.73 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:03:00,727 INFO L168 Benchmark]: Boogie Preprocessor took 17.64 ms. Allocated memory is still 111.1 MB. Free memory was 86.1 MB in the beginning and 85.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:03:00,728 INFO L168 Benchmark]: RCFGBuilder took 329.14 ms. Allocated memory is still 111.1 MB. Free memory was 85.0 MB in the beginning and 75.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:03:00,729 INFO L168 Benchmark]: TraceAbstraction took 875.10 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 75.1 MB in the beginning and 121.1 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:03:00,730 INFO L168 Benchmark]: Witness Printer took 79.59 ms. Allocated memory is still 151.0 MB. Free memory was 121.1 MB in the beginning and 119.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:03:00,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 111.1 MB. Free memory was 89.7 MB in the beginning and 89.6 MB in the end (delta: 119.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 214.94 ms. Allocated memory is still 111.1 MB. Free memory was 73.5 MB in the beginning and 87.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.73 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.64 ms. Allocated memory is still 111.1 MB. Free memory was 86.1 MB in the beginning and 85.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 329.14 ms. Allocated memory is still 111.1 MB. Free memory was 85.0 MB in the beginning and 75.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.10 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 75.1 MB in the beginning and 121.1 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 79.59 ms. Allocated memory is still 151.0 MB. Free memory was 121.1 MB in the beginning and 119.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 754.8ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 32.6ms, AutomataDifference: 255.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.8ms, InitialAbstractionConstructionTime: 16.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 62 SDtfs, 82 SDslu, 20 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 121.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 7.0ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.0ms SsaConstructionTime, 39.9ms SatisfiabilityAnalysisTime, 188.5ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 RESULT: Ultimate proved your program to be correct! [2021-10-24 11:03:00,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce206ed9-5326-4369-b008-bb279a39881b/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...