./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.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_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/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 6ffa353364df069da4c745dd5fb0697227f61d1b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:48:11,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:48:11,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:48:12,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:48:12,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:48:12,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:48:12,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:48:12,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:48:12,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:48:12,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:48:12,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:48:12,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:48:12,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:48:12,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:48:12,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:48:12,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:48:12,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:48:12,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:48:12,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:48:12,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:48:12,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:48:12,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:48:12,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:48:12,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:48:12,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:48:12,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:48:12,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:48:12,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:48:12,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:48:12,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:48:12,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:48:12,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:48:12,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:48:12,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:48:12,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:48:12,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:48:12,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:48:12,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:48:12,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:48:12,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:48:12,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:48:12,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:48:12,158 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:48:12,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:48:12,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:48:12,161 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:48:12,161 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:48:12,162 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:48:12,162 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:48:12,163 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:48:12,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:48:12,164 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:48:12,164 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:48:12,164 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:48:12,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:48:12,166 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:48:12,166 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:48:12,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:48:12,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:48:12,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:48:12,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:48:12,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:48:12,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:48:12,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:48:12,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:48:12,171 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:48:12,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:48:12,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:48:12,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:48:12,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:48:12,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:48:12,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:48:12,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:48:12,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:48:12,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:48:12,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:48:12,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:48:12,174 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:48:12,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:48:12,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:48:12,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:48:12,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:48:12,175 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_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ffa353364df069da4c745dd5fb0697227f61d1b [2020-11-22 12:48:12,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:48:12,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:48:12,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:48:12,526 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:48:12,528 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:48:12,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c [2020-11-22 12:48:12,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/data/66ae886cb/5c40eeeda3b64e83aae1ffe8a118d88e/FLAGe76b72faf [2020-11-22 12:48:13,198 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:48:13,199 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c [2020-11-22 12:48:13,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/data/66ae886cb/5c40eeeda3b64e83aae1ffe8a118d88e/FLAGe76b72faf [2020-11-22 12:48:13,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/data/66ae886cb/5c40eeeda3b64e83aae1ffe8a118d88e [2020-11-22 12:48:13,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:48:13,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:48:13,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:48:13,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:48:13,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:48:13,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbebe5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13, skipping insertion in model container [2020-11-22 12:48:13,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:48:13,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:48:13,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:48:13,827 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:48:13,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:48:13,879 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:48:13,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13 WrapperNode [2020-11-22 12:48:13,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:48:13,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:48:13,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:48:13,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:48:13,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:48:13,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:48:13,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:48:13,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:48:13,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... [2020-11-22 12:48:13,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:48:13,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:48:13,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:48:13,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:48:14,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/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 12:48:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:48:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:48:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:48:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:48:14,608 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:48:14,608 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-22 12:48:14,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:14 BoogieIcfgContainer [2020-11-22 12:48:14,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:48:14,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:48:14,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:48:14,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:48:14,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:48:13" (1/3) ... [2020-11-22 12:48:14,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3432a1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:48:14, skipping insertion in model container [2020-11-22 12:48:14,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:13" (2/3) ... [2020-11-22 12:48:14,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3432a1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:48:14, skipping insertion in model container [2020-11-22 12:48:14,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:14" (3/3) ... [2020-11-22 12:48:14,625 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound1.c [2020-11-22 12:48:14,644 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:48:14,650 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 12:48:14,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 12:48:14,687 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:48:14,687 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:48:14,688 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:48:14,688 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:48:14,688 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:48:14,688 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:48:14,688 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:48:14,689 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:48:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-22 12:48:14,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 12:48:14,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:14,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 12:48:14,710 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:14,718 INFO L82 PathProgramCache]: Analyzing trace with hash 93927148, now seen corresponding path program 1 times [2020-11-22 12:48:14,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:48:14,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956852375] [2020-11-22 12:48:14,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:48:14,841 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:48:14,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488699012] [2020-11-22 12:48:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/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 12:48:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:14,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:48:14,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:15,047 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 12:48:15,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:15,079 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 12:48:15,096 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 12:48:15,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956852375] [2020-11-22 12:48:15,097 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:48:15,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488699012] [2020-11-22 12:48:15,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:15,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:48:15,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510485834] [2020-11-22 12:48:15,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:15,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:48:15,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:15,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:15,132 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2020-11-22 12:48:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:17,328 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2020-11-22 12:48:17,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:48:17,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-22 12:48:17,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:17,342 INFO L225 Difference]: With dead ends: 42 [2020-11-22 12:48:17,343 INFO L226 Difference]: Without dead ends: 22 [2020-11-22 12:48:17,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:48:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-22 12:48:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2020-11-22 12:48:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-22 12:48:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-22 12:48:17,409 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2020-11-22 12:48:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:17,410 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-22 12:48:17,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:17,410 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-22 12:48:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:48:17,411 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:17,411 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2020-11-22 12:48:17,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 12:48:17,638 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:17,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:17,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1229909116, now seen corresponding path program 1 times [2020-11-22 12:48:17,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:48:17,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759539195] [2020-11-22 12:48:17,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:48:17,662 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:48:17,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095926014] [2020-11-22 12:48:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/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 12:48:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:17,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:17,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:48:17,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:48:17,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759539195] [2020-11-22 12:48:17,803 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:48:17,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095926014] [2020-11-22 12:48:17,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [118074779] [2020-11-22 12:48:17,828 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-11-22 12:48:17,829 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 12:48:17,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 12:48:17,839 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 12:48:17,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 12:48:17,963 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:48:18,568 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 12:48:19,880 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 137 DAG size of output: 80 [2020-11-22 12:48:21,129 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2020-11-22 12:48:21,554 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2020-11-22 12:48:21,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-22 12:48:21,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2020-11-22 12:48:21,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364926670] [2020-11-22 12:48:21,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:21,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:48:21,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:21,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:48:21,800 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2020-11-22 12:48:21,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:21,996 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-22 12:48:21,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:48:21,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-22 12:48:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:21,999 INFO L225 Difference]: With dead ends: 20 [2020-11-22 12:48:21,999 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 12:48:22,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:48:22,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 12:48:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-11-22 12:48:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 12:48:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-22 12:48:22,007 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2020-11-22 12:48:22,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:22,007 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-22 12:48:22,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:22,008 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-22 12:48:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 12:48:22,008 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:22,008 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-22 12:48:22,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:48:22,229 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:22,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:22,230 INFO L82 PathProgramCache]: Analyzing trace with hash 527480432, now seen corresponding path program 1 times [2020-11-22 12:48:22,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:48:22,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776085119] [2020-11-22 12:48:22,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:48:22,244 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:48:22,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163953535] [2020-11-22 12:48:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/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 12:48:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:22,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:22,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:22,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:22,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:22,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776085119] [2020-11-22 12:48:22,362 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:48:22,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163953535] [2020-11-22 12:48:22,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [231223276] [2020-11-22 12:48:22,364 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-11-22 12:48:22,364 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 12:48:22,365 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 12:48:22,365 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 12:48:22,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 12:48:22,423 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:48:22,858 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 12:48:24,476 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 122 DAG size of output: 89 [2020-11-22 12:48:25,258 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2020-11-22 12:48:26,070 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2020-11-22 12:48:26,713 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2020-11-22 12:48:26,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-22 12:48:26,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4] total 9 [2020-11-22 12:48:26,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818828412] [2020-11-22 12:48:26,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 12:48:26,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:48:26,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 12:48:26,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:48:26,717 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2020-11-22 12:48:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:28,939 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-11-22 12:48:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 12:48:28,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-22 12:48:28,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:28,942 INFO L225 Difference]: With dead ends: 21 [2020-11-22 12:48:28,942 INFO L226 Difference]: Without dead ends: 17 [2020-11-22 12:48:28,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:48:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-22 12:48:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-22 12:48:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 12:48:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-22 12:48:28,950 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2020-11-22 12:48:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:28,951 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-22 12:48:28,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 12:48:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-22 12:48:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:48:28,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:28,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2020-11-22 12:48:29,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-22 12:48:29,153 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:29,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:29,153 INFO L82 PathProgramCache]: Analyzing trace with hash 149382441, now seen corresponding path program 1 times [2020-11-22 12:48:29,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:48:29,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947941111] [2020-11-22 12:48:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:48:29,161 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:48:29,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824587711] [2020-11-22 12:48:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:48:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:29,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:29,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-22 12:48:29,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-22 12:48:29,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947941111] [2020-11-22 12:48:29,303 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:48:29,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824587711] [2020-11-22 12:48:29,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1274131789] [2020-11-22 12:48:29,305 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2020-11-22 12:48:29,306 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 12:48:29,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 12:48:29,306 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 12:48:29,306 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 12:48:29,344 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:48:29,737 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 12:48:31,292 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2020-11-22 12:48:32,038 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 72 [2020-11-22 12:48:33,111 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 72 [2020-11-22 12:48:33,987 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2020-11-22 12:48:33,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-22 12:48:33,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4] total 9 [2020-11-22 12:48:33,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71164671] [2020-11-22 12:48:33,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 12:48:33,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:48:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 12:48:33,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:48:33,991 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 7 states. [2020-11-22 12:48:34,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:34,128 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-11-22 12:48:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 12:48:34,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-22 12:48:34,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:34,133 INFO L225 Difference]: With dead ends: 17 [2020-11-22 12:48:34,133 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:48:34,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:48:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:48:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:48:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:48:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:48:34,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-22 12:48:34,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:34,135 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:48:34,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 12:48:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:48:34,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:48:34,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:48:34,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:48:34,959 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-11-22 12:48:36,642 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2020-11-22 12:48:36,645 INFO L270 CegarLoopResult]: At program point L35-3(lines 35 45) the Hoare annotation is: (and (let ((.cse22 (select |#memory_int| |#t~string4.base|))) (let ((.cse0 (= (select |#valid| 0) 0)) (.cse1 (= 10 (select |#length| |#t~string5.base|))) (.cse2 (= (select |#valid| |#t~string5.base|) 1)) (.cse3 (= (select |#valid| |#t~string4.base|) 1)) (.cse4 (= |#t~string5.offset| 0)) (.cse5 (<= ULTIMATE.start_main_~z~0 2147483647)) (.cse6 (= 12 (select |#length| |#t~string6.base|))) (.cse7 (< |#StackHeapBarrier| |#t~string5.base|)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (= 0 |#t~string4.offset|)) (.cse10 (= 2 (select |#length| |#t~string4.base|))) (.cse11 (= |#NULL.base| 0)) (.cse12 (= (select |#valid| |#t~string6.base|) 1)) (.cse13 (= 48 (select .cse22 |#t~string4.offset|))) (.cse14 (<= 1 ULTIMATE.start_main_~z~0)) (.cse15 (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)) (.cse16 (< |#StackHeapBarrier| |#t~string6.base|)) (.cse17 (< |#StackHeapBarrier| |#t~string4.base|)) (.cse18 (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond)) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#t~string6.offset| 0)) (.cse21 (= (select .cse22 (+ |#t~string4.offset| 1)) 0))) (or (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~c~0 2) .cse0 .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1)) (< 1 ULTIMATE.start_main_~k~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (= (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) .cse18 (= ~counter~0 1) .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~x~0 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= ~counter~0 0) .cse10 (= ULTIMATE.start_main_~c~0 1) .cse11 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21)))) (<= 1 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~k~0 2147483647)) [2020-11-22 12:48:36,646 INFO L274 CegarLoopResult]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2020-11-22 12:48:36,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-11-22 12:48:36,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:48:36,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-11-22 12:48:36,646 INFO L274 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-11-22 12:48:36,646 INFO L270 CegarLoopResult]: At program point L16-1(lines 38 39) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= (select |#valid| 0) 0) (= 10 (select |#length| |#t~string5.base|)) (= (select |#valid| |#t~string5.base|) 1) (= ULTIMATE.start_main_~x~0 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (<= ULTIMATE.start_main_~z~0 2147483647) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= 2 (select |#length| |#t~string4.base|)) (= ULTIMATE.start_main_~c~0 1) (= |#NULL.base| 0) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (<= 1 ULTIMATE.start_main_~z~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (<= 1 ULTIMATE.start_main_~k~0) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (= ~counter~0 1) (< 0 |#StackHeapBarrier|) (<= ULTIMATE.start_main_~k~0 2147483647) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-22 12:48:36,647 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-11-22 12:48:36,647 INFO L277 CegarLoopResult]: At program point L16-3(lines 15 21) the Hoare annotation is: true [2020-11-22 12:48:36,647 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:48:36,647 INFO L274 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-11-22 12:48:36,647 INFO L274 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2020-11-22 12:48:36,647 INFO L274 CegarLoopResult]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2020-11-22 12:48:36,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,676 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,677 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,689 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,689 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:48:36 BoogieIcfgContainer [2020-11-22 12:48:36,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:48:36,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:48:36,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:48:36,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:48:36,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:14" (3/4) ... [2020-11-22 12:48:36,704 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:48:36,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-22 12:48:36,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-22 12:48:36,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 12:48:36,714 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:48:36,743 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((\old(cond) == cond && c == 2) && \valid[0] == 0) && 10 == unknown-#length-unknown["geo1-ll.c"]) && x == z + 1) && 1 < k) && \valid["geo1-ll.c"] == 1) && \valid["0"] == 1) && "geo1-ll.c" == 0) && z <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "geo1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && 1 <= z) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && z * z == y) && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((((((((((((((((((((((((\valid[0] == 0 && 10 == unknown-#length-unknown["geo1-ll.c"]) && \valid["geo1-ll.c"] == 1) && x == 1) && \valid["0"] == 1) && "geo1-ll.c" == 0) && z <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "geo1-ll.c") && #NULL == 0) && 0 == "0") && counter == 0) && 2 == unknown-#length-unknown["0"]) && c == 1) && #NULL == 0) && z == y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && 1 <= z) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0)) && 1 <= k) && k <= 2147483647 [2020-11-22 12:48:36,743 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((\old(cond) == cond && \valid[0] == 0) && 10 == unknown-#length-unknown["geo1-ll.c"]) && \valid["geo1-ll.c"] == 1) && x == 1) && \valid["0"] == 1) && "geo1-ll.c" == 0) && z <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "geo1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 2 == unknown-#length-unknown["0"]) && c == 1) && #NULL == 0) && z == y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && 1 <= z) && \old(cond) == 1) && 1 <= k) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && k <= 2147483647) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-22 12:48:36,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fe27dc02-b7d4-4460-9ec5-0b02f4d23222/bin/utaipan/witness.graphml [2020-11-22 12:48:36,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:48:36,777 INFO L168 Benchmark]: Toolchain (without parser) took 23211.25 ms. Allocated memory was 146.8 MB in the beginning and 255.9 MB in the end (delta: 109.1 MB). Free memory was 118.2 MB in the beginning and 176.3 MB in the end (delta: -58.2 MB). Peak memory consumption was 50.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:36,777 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:48:36,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.83 ms. Allocated memory is still 146.8 MB. Free memory was 118.2 MB in the beginning and 125.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:36,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.76 ms. Allocated memory is still 146.8 MB. Free memory was 124.5 MB in the beginning and 123.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:36,779 INFO L168 Benchmark]: Boogie Preprocessor took 60.45 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 122.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:48:36,779 INFO L168 Benchmark]: RCFGBuilder took 614.28 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 103.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:36,780 INFO L168 Benchmark]: TraceAbstraction took 22085.97 ms. Allocated memory was 146.8 MB in the beginning and 255.9 MB in the end (delta: 109.1 MB). Free memory was 102.9 MB in the beginning and 179.5 MB in the end (delta: -76.6 MB). Peak memory consumption was 129.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:36,788 INFO L168 Benchmark]: Witness Printer took 75.97 ms. Allocated memory is still 255.9 MB. Free memory was 179.5 MB in the beginning and 176.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:36,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.83 ms. Allocated memory is still 146.8 MB. Free memory was 118.2 MB in the beginning and 125.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.76 ms. Allocated memory is still 146.8 MB. Free memory was 124.5 MB in the beginning and 123.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.45 ms. Allocated memory is still 146.8 MB. Free memory was 123.4 MB in the beginning and 122.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 614.28 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 103.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22085.97 ms. Allocated memory was 146.8 MB in the beginning and 255.9 MB in the end (delta: 109.1 MB). Free memory was 102.9 MB in the beginning and 179.5 MB in the end (delta: -76.6 MB). Peak memory consumption was 129.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.97 ms. Allocated memory is still 255.9 MB. Free memory was 179.5 MB in the beginning and 176.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant [2020-11-22 12:48:36,804 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,805 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,805 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,805 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,806 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,806 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,806 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,806 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,806 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,807 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,807 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,808 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,808 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,811 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((\old(cond) == cond && \valid[0] == 0) && 10 == unknown-#length-unknown["geo1-ll.c"]) && \valid["geo1-ll.c"] == 1) && x == 1) && \valid["0"] == 1) && "geo1-ll.c" == 0) && z <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "geo1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 2 == unknown-#length-unknown["0"]) && c == 1) && #NULL == 0) && z == y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && 1 <= z) && \old(cond) == 1) && 1 <= k) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && k <= 2147483647) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 35]: Loop Invariant [2020-11-22 12:48:36,813 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,813 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,813 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,818 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,818 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,818 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,820 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:48:36,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:48:36,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:48:36,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:48:36,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((\old(cond) == cond && c == 2) && \valid[0] == 0) && 10 == unknown-#length-unknown["geo1-ll.c"]) && x == z + 1) && 1 < k) && \valid["geo1-ll.c"] == 1) && \valid["0"] == 1) && "geo1-ll.c" == 0) && z <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "geo1-ll.c") && #NULL == 0) && 0 == "0") && \old(cond) == 1) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && 1 <= z) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && z * z == y) && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((((((((((((((((((((((((\valid[0] == 0 && 10 == unknown-#length-unknown["geo1-ll.c"]) && \valid["geo1-ll.c"] == 1) && x == 1) && \valid["0"] == 1) && "geo1-ll.c" == 0) && z <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "geo1-ll.c") && #NULL == 0) && 0 == "0") && counter == 0) && 2 == unknown-#length-unknown["0"]) && c == 1) && #NULL == 0) && z == y) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && 1 <= z) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0)) && 1 <= k) && k <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 26 SDslu, 32 SDs, 0 SdLazy, 114 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 98 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 343 HoareAnnotationTreeSize, 3 FomulaSimplifications, 674 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 414 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 2196 SizeOfPredicates, 8 NumberOfNonLiveVariables, 356 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 54/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 1668, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 22, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 46, TOOLS_POST_TIME[ms]: 710, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 46, TOOLS_QUANTIFIERELIM_TIME[ms]: 688, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 285, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 83, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 344, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 342, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 46, DOMAIN_ISBOTTOM_APPLICATIONS: 22, DOMAIN_ISBOTTOM_TIME[ms]: 159, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 476, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 476, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 12, DAG_COMPRESSION_PROCESSED_NODES: 181, DAG_COMPRESSION_RETAINED_NODES: 80, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...