./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e0988c5a7e2818e1b21adacfc309f127adf7f95 .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:03:57,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:03:57,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:03:57,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:03:57,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:03:57,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:03:57,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:03:57,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:03:57,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:03:57,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:03:57,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:03:57,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:03:57,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:03:57,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:03:57,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:03:57,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:03:57,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:03:57,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:03:57,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:03:57,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:03:57,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:03:57,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:03:57,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:03:57,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:03:57,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:03:57,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:03:57,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:03:57,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:03:57,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:03:57,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:03:57,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:03:57,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:03:57,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:03:57,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:03:57,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:03:57,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:03:57,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:03:57,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:03:57,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:03:57,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:03:57,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:03:57,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:03:57,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:03:57,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:03:57,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:03:57,871 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:03:57,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:03:57,871 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:03:57,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:03:57,872 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:03:57,872 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:03:57,872 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:03:57,872 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:03:57,873 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:03:57,873 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:03:57,873 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:03:57,873 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:03:57,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:03:57,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:03:57,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:03:57,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:03:57,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:03:57,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:03:57,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:03:57,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:03:57,875 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:03:57,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:03:57,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:03:57,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:03:57,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:03:57,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:03:57,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:03:57,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:03:57,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:57,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:03:57,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:03:57,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:03:57,883 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:03:57,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:03:57,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:03:57,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:03:57,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:03:57,885 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-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e0988c5a7e2818e1b21adacfc309f127adf7f95 [2020-11-22 13:03:58,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:03:58,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:03:58,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:03:58,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:03:58,181 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:03:58,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2020-11-22 13:03:58,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/data/48dfc3225/86e492daee45411da0068724bb0f02bc/FLAG437e588cb [2020-11-22 13:03:58,725 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:03:58,726 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2020-11-22 13:03:58,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/data/48dfc3225/86e492daee45411da0068724bb0f02bc/FLAG437e588cb [2020-11-22 13:03:59,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/data/48dfc3225/86e492daee45411da0068724bb0f02bc [2020-11-22 13:03:59,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:03:59,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:03:59,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:59,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:03:59,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:03:59,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e99f2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59, skipping insertion in model container [2020-11-22 13:03:59,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:03:59,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:03:59,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:59,432 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:03:59,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:59,477 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:03:59,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59 WrapperNode [2020-11-22 13:03:59,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:59,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:59,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:03:59,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:03:59,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:59,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:03:59,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:03:59,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:03:59,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:03:59,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:03:59,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:03:59,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:03:59,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:03:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:03:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:03:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:03:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-22 13:03:59,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:03:59,920 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-22 13:03:59,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:59 BoogieIcfgContainer [2020-11-22 13:03:59,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:03:59,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:03:59,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:03:59,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:03:59,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:03:59" (1/3) ... [2020-11-22 13:03:59,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3655a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:03:59, skipping insertion in model container [2020-11-22 13:03:59,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (2/3) ... [2020-11-22 13:03:59,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3655a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:03:59, skipping insertion in model container [2020-11-22 13:03:59,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:59" (3/3) ... [2020-11-22 13:03:59,947 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound5.c [2020-11-22 13:03:59,971 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:03:59,982 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 13:03:59,994 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 13:04:00,034 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:00,035 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:00,035 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:00,035 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:00,035 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:00,035 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:00,035 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:00,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:00,047 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-22 13:04:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:04:00,052 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:00,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:04:00,053 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:00,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:00,059 INFO L82 PathProgramCache]: Analyzing trace with hash 73178710, now seen corresponding path program 1 times [2020-11-22 13:04:00,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:00,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177285324] [2020-11-22 13:04:00,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:00,212 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:04:00,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251533744] [2020-11-22 13:04:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:00,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:04:00,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:00,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:00,428 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:04:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:00,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177285324] [2020-11-22 13:04:00,471 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:04:00,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251533744] [2020-11-22 13:04:00,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:00,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:00,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841019336] [2020-11-22 13:04:00,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:00,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:00,502 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2020-11-22 13:04:02,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:02,784 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-11-22 13:04:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:04:02,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-22 13:04:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:02,796 INFO L225 Difference]: With dead ends: 34 [2020-11-22 13:04:02,796 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 13:04:02,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:04:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 13:04:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 14. [2020-11-22 13:04:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-22 13:04:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-11-22 13:04:02,836 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2020-11-22 13:04:02,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:02,837 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-11-22 13:04:02,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-22 13:04:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:04:02,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:02,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:04:03,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 13:04:03,065 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:03,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:03,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2026469936, now seen corresponding path program 1 times [2020-11-22 13:04:03,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:03,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558720283] [2020-11-22 13:04:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:03,085 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:04:03,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887433229] [2020-11-22 13:04:03,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:03,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:04:03,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:03,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:03,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558720283] [2020-11-22 13:04:03,211 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:04:03,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887433229] [2020-11-22 13:04:03,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:03,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:04:03,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880237957] [2020-11-22 13:04:03,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:04:03,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:03,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:04:03,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:04:03,214 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 6 states. [2020-11-22 13:04:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:03,257 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-11-22 13:04:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:04:03,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-11-22 13:04:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:03,258 INFO L225 Difference]: With dead ends: 25 [2020-11-22 13:04:03,258 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:04:03,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:04:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:04:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-11-22 13:04:03,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 13:04:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-11-22 13:04:03,264 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2020-11-22 13:04:03,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:03,264 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-11-22 13:04:03,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:04:03,265 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-22 13:04:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:04:03,265 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:03,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:03,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:03,466 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:03,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1770595639, now seen corresponding path program 1 times [2020-11-22 13:04:03,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:03,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147551664] [2020-11-22 13:04:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:03,490 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:04:03,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115903793] [2020-11-22 13:04:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:03,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:03,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:03,573 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:04:03,573 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:04:03,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:03,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:03 BoogieIcfgContainer [2020-11-22 13:04:03,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:03,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:03,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:03,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:03,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:59" (3/4) ... [2020-11-22 13:04:03,820 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:04:03,870 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6fb95b05-d70f-4b2b-b374-bc244be223b1/bin/utaipan/witness.graphml [2020-11-22 13:04:03,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:03,871 INFO L168 Benchmark]: Toolchain (without parser) took 4757.86 ms. Allocated memory is still 115.3 MB. Free memory was 86.6 MB in the beginning and 60.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,872 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:03,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.19 ms. Allocated memory is still 115.3 MB. Free memory was 86.3 MB in the beginning and 92.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.13 ms. Allocated memory is still 115.3 MB. Free memory was 92.5 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,874 INFO L168 Benchmark]: Boogie Preprocessor took 35.63 ms. Allocated memory is still 115.3 MB. Free memory was 91.2 MB in the beginning and 90.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:03,874 INFO L168 Benchmark]: RCFGBuilder took 367.89 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 76.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,875 INFO L168 Benchmark]: TraceAbstraction took 3892.61 ms. Allocated memory is still 115.3 MB. Free memory was 75.7 MB in the beginning and 62.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,875 INFO L168 Benchmark]: Witness Printer took 52.76 ms. Allocated memory is still 115.3 MB. Free memory was 62.2 MB in the beginning and 60.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 48.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.19 ms. Allocated memory is still 115.3 MB. Free memory was 86.3 MB in the beginning and 92.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.13 ms. Allocated memory is still 115.3 MB. Free memory was 92.5 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.63 ms. Allocated memory is still 115.3 MB. Free memory was 91.2 MB in the beginning and 90.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 367.89 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 76.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3892.61 ms. Allocated memory is still 115.3 MB. Free memory was 75.7 MB in the beginning and 62.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.76 ms. Allocated memory is still 115.3 MB. Free memory was 62.2 MB in the beginning and 60.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_unsigned_int() [L27] k = __VERIFIER_nondet_unsigned_int() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<5 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L36] COND TRUE !(c < k) VAL [counter=1] [L45] x = x * (z - 1) [L16] COND TRUE !(cond) VAL [counter=1] [L9] __assert_fail("0", "geo1-u.c", 9, "reach_error") VAL [counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 14 SDslu, 62 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, 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, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...