./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-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_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/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 a3e843bfc822d054ad9b10c58d6f83fcd4aca808 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:05:56,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:56,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:57,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:57,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:57,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:57,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:57,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:57,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:57,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:57,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:57,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:57,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:57,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:57,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:57,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:57,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:57,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:57,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:57,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:57,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:57,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:57,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:57,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:57,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:57,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:57,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:57,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:57,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:57,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:57,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:57,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:57,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:57,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:57,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:57,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:57,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:57,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:57,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:57,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:57,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:57,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:57,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:57,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:57,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:57,193 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:57,193 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:57,193 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:57,194 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:57,194 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:57,194 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:57,194 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:57,196 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:57,196 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:57,196 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:57,196 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:57,197 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:57,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:57,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:57,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:57,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:57,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:57,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:57,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:57,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:57,200 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:57,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:57,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:57,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:57,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:57,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:57,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:57,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:57,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:57,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:57,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:57,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:57,203 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:57,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:57,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:57,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:57,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:57,204 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_ab29bd59-db08-48e0-ab84-a977507b3657/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3e843bfc822d054ad9b10c58d6f83fcd4aca808 [2020-11-22 13:05:57,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:57,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:57,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:57,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:57,576 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:57,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2020-11-22 13:05:57,659 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/data/fa679a265/db0eefb9603f4df195b29163c735347d/FLAG6f9d0beb0 [2020-11-22 13:05:58,275 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:58,275 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound1.c [2020-11-22 13:05:58,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/data/fa679a265/db0eefb9603f4df195b29163c735347d/FLAG6f9d0beb0 [2020-11-22 13:05:58,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/data/fa679a265/db0eefb9603f4df195b29163c735347d [2020-11-22 13:05:58,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:58,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:58,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:58,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:58,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:58,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463a522a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58, skipping insertion in model container [2020-11-22 13:05:58,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:58,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:58,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:58,944 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:58,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:58,985 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58 WrapperNode [2020-11-22 13:05:58,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:58,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:58,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:58,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:58,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:59,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:59,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:59,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:59,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:59,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:59,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:59,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:59,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:59,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/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 13:05:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:59,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:59,809 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:59,809 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-22 13:05:59,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:59 BoogieIcfgContainer [2020-11-22 13:05:59,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:59,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:59,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:59,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:59,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:58" (1/3) ... [2020-11-22 13:05:59,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b8d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:59, skipping insertion in model container [2020-11-22 13:05:59,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (2/3) ... [2020-11-22 13:05:59,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b8d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:59, skipping insertion in model container [2020-11-22 13:05:59,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:59" (3/3) ... [2020-11-22 13:05:59,823 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound1.c [2020-11-22 13:05:59,836 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:59,841 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-22 13:05:59,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-22 13:05:59,903 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:59,903 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:59,903 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:59,903 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:59,903 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:59,904 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:59,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:59,904 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-11-22 13:05:59,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:05:59,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:59,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:05:59,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:59,947 INFO L82 PathProgramCache]: Analyzing trace with hash 159617293, now seen corresponding path program 1 times [2020-11-22 13:05:59,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:59,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595078193] [2020-11-22 13:05:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:00,168 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 13:06:00,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595078193] [2020-11-22 13:06:00,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:00,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:00,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354435036] [2020-11-22 13:06:00,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:00,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:00,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:00,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:00,217 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-11-22 13:06:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:00,247 INFO L93 Difference]: Finished difference Result 71 states and 95 transitions. [2020-11-22 13:06:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:00,248 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-11-22 13:06:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:00,269 INFO L225 Difference]: With dead ends: 71 [2020-11-22 13:06:00,270 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:06:00,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:06:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:06:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:06:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-11-22 13:06:00,323 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 5 [2020-11-22 13:06:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:00,324 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-11-22 13:06:00,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-11-22 13:06:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:06:00,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:00,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:06:00,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:00,327 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:00,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:00,331 INFO L82 PathProgramCache]: Analyzing trace with hash 156511088, now seen corresponding path program 1 times [2020-11-22 13:06:00,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:00,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263770783] [2020-11-22 13:06:00,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:00,373 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:06:00,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591169233] [2020-11-22 13:06:00,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/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 13:06:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:00,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-22 13:06:00,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:00,582 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 13:06:00,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:00,600 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:06:00,618 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 13:06:00,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263770783] [2020-11-22 13:06:00,618 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:00,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591169233] [2020-11-22 13:06:00,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:00,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:06:00,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737456858] [2020-11-22 13:06:00,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:00,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:00,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:00,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:00,622 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 5 states. [2020-11-22 13:06:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:03,008 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2020-11-22 13:06:03,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:06:03,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-22 13:06:03,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:03,012 INFO L225 Difference]: With dead ends: 85 [2020-11-22 13:06:03,012 INFO L226 Difference]: Without dead ends: 79 [2020-11-22 13:06:03,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:03,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-22 13:06:03,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 47. [2020-11-22 13:06:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:06:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2020-11-22 13:06:03,023 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 5 [2020-11-22 13:06:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:03,026 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-11-22 13:06:03,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2020-11-22 13:06:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:06:03,028 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:03,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:06:03,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-22 13:06:03,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:03,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:03,234 INFO L82 PathProgramCache]: Analyzing trace with hash 556911243, now seen corresponding path program 1 times [2020-11-22 13:06:03,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:03,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178245094] [2020-11-22 13:06:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:03,252 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:06:03,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1052841119] [2020-11-22 13:06:03,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/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 13:06:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:03,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:06:03,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:03,370 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 13:06:03,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:03,383 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 13:06:03,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178245094] [2020-11-22 13:06:03,384 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:03,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052841119] [2020-11-22 13:06:03,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:03,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:06:03,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632707359] [2020-11-22 13:06:03,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:03,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:03,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:03,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:03,387 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 4 states. [2020-11-22 13:06:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:03,449 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-11-22 13:06:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:03,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-22 13:06:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:03,451 INFO L225 Difference]: With dead ends: 53 [2020-11-22 13:06:03,452 INFO L226 Difference]: Without dead ends: 49 [2020-11-22 13:06:03,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-22 13:06:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-22 13:06:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-22 13:06:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2020-11-22 13:06:03,462 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 6 [2020-11-22 13:06:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:03,463 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2020-11-22 13:06:03,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2020-11-22 13:06:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:06:03,464 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:03,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:03,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:03,677 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:03,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:03,678 INFO L82 PathProgramCache]: Analyzing trace with hash 83486771, now seen corresponding path program 1 times [2020-11-22 13:06:03,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:03,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39365695] [2020-11-22 13:06:03,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:03,704 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:06:03,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122964798] [2020-11-22 13:06:03,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/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 13:06:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:03,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-22 13:06:03,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:03,855 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 13:06:03,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:03,889 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:06:03,906 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 13:06:03,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39365695] [2020-11-22 13:06:03,907 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:03,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122964798] [2020-11-22 13:06:03,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:03,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:06:03,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876248128] [2020-11-22 13:06:03,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:03,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:03,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:03,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:03,909 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 5 states. [2020-11-22 13:06:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:04,257 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2020-11-22 13:06:04,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:04,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-22 13:06:04,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:04,259 INFO L225 Difference]: With dead ends: 92 [2020-11-22 13:06:04,259 INFO L226 Difference]: Without dead ends: 84 [2020-11-22 13:06:04,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-22 13:06:04,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 72. [2020-11-22 13:06:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-22 13:06:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2020-11-22 13:06:04,282 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 7 [2020-11-22 13:06:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:04,283 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2020-11-22 13:06:04,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2020-11-22 13:06:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:06:04,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:04,284 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:04,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:04,494 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:04,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:04,494 INFO L82 PathProgramCache]: Analyzing trace with hash -608980738, now seen corresponding path program 1 times [2020-11-22 13:06:04,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:04,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648894373] [2020-11-22 13:06:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:04,509 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:06:04,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869681984] [2020-11-22 13:06:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/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 13:06:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:04,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-22 13:06:04,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:04,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:04,698 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:06:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:04,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648894373] [2020-11-22 13:06:04,759 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:04,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869681984] [2020-11-22 13:06:04,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [150698254] [2020-11-22 13:06:04,783 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2020-11-22 13:06:04,783 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 13:06:04,787 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 13:06:04,793 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 13:06:04,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 13:06:04,899 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 13:06:05,611 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 13:06:06,606 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-11-22 13:06:07,672 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 91 [2020-11-22 13:06:08,165 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2020-11-22 13:06:08,792 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2020-11-22 13:06:09,455 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2020-11-22 13:06:10,072 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2020-11-22 13:06:10,819 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2020-11-22 13:06:10,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-22 13:06:10,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 4] total 14 [2020-11-22 13:06:10,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362800171] [2020-11-22 13:06:10,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:06:10,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:10,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:06:10,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-22 13:06:10,927 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand 9 states. [2020-11-22 13:06:11,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:11,222 INFO L93 Difference]: Finished difference Result 85 states and 105 transitions. [2020-11-22 13:06:11,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:06:11,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-22 13:06:11,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:11,229 INFO L225 Difference]: With dead ends: 85 [2020-11-22 13:06:11,229 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:11,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-22 13:06:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:11,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-22 13:06:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:11,231 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:11,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:06:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:11,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:11,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:11,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:11,902 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-11-22 13:06:12,090 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-22 13:06:12,953 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2020-11-22 13:06:13,087 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-22 13:06:13,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:13,090 INFO L274 CegarLoopResult]: For program point L37-1(lines 37 61) no Hoare annotation was computed. [2020-11-22 13:06:13,091 INFO L270 CegarLoopResult]: At program point L37-3(lines 37 61) the Hoare annotation is: (and (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (let ((.cse0 (<= ULTIMATE.start_main_~x~0 2147483647)) (.cse1 (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)) (.cse2 (<= 0 |#NULL.offset|)) (.cse3 (<= 0 |#t~string4.offset|)) (.cse4 (<= 1 ULTIMATE.start_main_~y~0)) (.cse5 (<= 0 |#t~string6.base|)) (.cse6 (<= 0 |#t~string5.base|)) (.cse7 (<= 0 |#t~string5.offset|)) (.cse8 (<= 1 ULTIMATE.start_assume_abort_if_not_~cond)) (.cse9 (<= 0 |#StackHeapBarrier|)) (.cse10 (<= |#t~string6.offset| 0)) (.cse11 (<= |#t~string4.offset| 0)) (.cse12 (<= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse13 (<= |#NULL.base| 0)) (.cse14 (<= 0 |#t~string6.offset|)) (.cse15 (<= |#t~string5.offset| 0)) (.cse16 (<= 0 |#t~string4.base|)) (.cse17 (<= 0 |#NULL.base|)) (.cse18 (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|)) (.cse19 (<= |#NULL.offset| 0))) (or (and (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) .cse0 .cse1 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) .cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~x~0) (<= ~counter~0 2) .cse3 .cse4 (<= ULTIMATE.start_main_~q~0 1) (<= 1 ULTIMATE.start_main_~q~0) .cse5 .cse6 .cse7 (<= ULTIMATE.start_main_~b~0 2147483647) (<= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= 0 (+ ULTIMATE.start_main_~r~0 2147483646)) .cse14 (<= 2 ~counter~0) .cse15 .cse16 (<= ULTIMATE.start_main_~r~0 2147483646) .cse17 .cse18 (<= ULTIMATE.start_main_~a~0 1) (<= 1 ULTIMATE.start_main_~b~0) .cse19) (and .cse0 .cse1 (<= ~counter~0 0) .cse2 (<= ULTIMATE.start_main_~y~0 2147483647) .cse3 (<= ULTIMATE.start_main_~a~0 0) .cse4 .cse5 .cse6 .cse7 (<= ULTIMATE.start_main_~r~0 2147483647) .cse8 .cse9 .cse10 .cse11 .cse12 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= 0 (+ ULTIMATE.start_main_~r~0 2147483648)) .cse13 .cse14 .cse15 .cse16 (<= ULTIMATE.start_main_~q~0 0) (<= 0 ULTIMATE.start_main_~a~0) .cse17 .cse18 (<= 0 ULTIMATE.start_main_~q~0) (<= 0 ~counter~0) .cse19)))) [2020-11-22 13:06:13,091 INFO L274 CegarLoopResult]: For program point L37-4(lines 37 61) no Hoare annotation was computed. [2020-11-22 13:06:13,091 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,091 INFO L274 CegarLoopResult]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2020-11-22 13:06:13,092 INFO L270 CegarLoopResult]: At program point L46-3(lines 46 58) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= (select |#valid| 0) 0) (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (<= 0 |#t~string4.offset|) (= (select |#valid| |#t~string5.base|) 1) (<= 1 ULTIMATE.start_main_~y~0) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (<= ULTIMATE.start_main_~r~0 2147483647) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= |#t~string4.offset| 0) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= 14 (select |#length| |#t~string5.base|)) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~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|) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-22 13:06:13,092 INFO L274 CegarLoopResult]: For program point L46-4(lines 46 58) no Hoare annotation was computed. [2020-11-22 13:06:13,092 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,092 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,092 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,093 INFO L270 CegarLoopResult]: At program point L15-1(lines 14 20) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= (select |#valid| 0) 0) (<= ULTIMATE.start_main_~y~0 2147483647) (<= 0 |#t~string4.offset|) (= (select |#valid| |#t~string5.base|) 1) (<= 1 ULTIMATE.start_main_~y~0) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (<= ULTIMATE.start_main_~r~0 2147483647) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= ULTIMATE.start_main_~b~0 0) (<= |#t~string4.offset| 0) (<= 0 (+ ULTIMATE.start_main_~r~0 2147483648)) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= 14 (select |#length| |#t~string5.base|)) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (< |#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|) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-22 13:06:13,093 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,093 INFO L270 CegarLoopResult]: At program point L15-3(lines 41 42) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (= (select |#valid| 0) 0) (<= ULTIMATE.start_main_~y~0 2147483647) (<= 0 |#t~string4.offset|) (= (select |#valid| |#t~string5.base|) 1) (<= 1 ULTIMATE.start_main_~y~0) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (<= ULTIMATE.start_main_~r~0 2147483647) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= ULTIMATE.start_main_~q~0 0) (= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= ULTIMATE.start_main_~b~0 0) (<= |#t~string4.offset| 0) (<= 0 (+ ULTIMATE.start_main_~r~0 2147483648)) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= 14 (select |#length| |#t~string5.base|)) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (< |#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|) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) (= |#t~string6.offset| 0) (= (select .cse0 (+ |#t~string4.offset| 1)) 0))) [2020-11-22 13:06:13,093 INFO L274 CegarLoopResult]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,093 INFO L270 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: false [2020-11-22 13:06:13,093 INFO L274 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,094 INFO L270 CegarLoopResult]: At program point L15-7(lines 14 20) the Hoare annotation is: false [2020-11-22 13:06:13,094 INFO L274 CegarLoopResult]: For program point L15-8(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,094 INFO L270 CegarLoopResult]: At program point L15-9(lines 51 52) the Hoare annotation is: false [2020-11-22 13:06:13,094 INFO L274 CegarLoopResult]: For program point L15-10(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,094 INFO L270 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: false [2020-11-22 13:06:13,094 INFO L274 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-11-22 13:06:13,094 INFO L277 CegarLoopResult]: At program point L15-13(lines 14 20) the Hoare annotation is: true [2020-11-22 13:06:13,094 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,094 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,094 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:13,095 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 13:06:13,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:13 BoogieIcfgContainer [2020-11-22 13:06:13,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:13,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:13,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:13,187 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:13,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:59" (3/4) ... [2020-11-22 13:06:13,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:13,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-22 13:06:13,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-22 13:06:13,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:06:13,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:13,226 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: b == a * y && ((((((((((((((((((((((((((((((((((1 <= \old(cond) && x <= 2147483647) && \old(cond) <= 1) && \old(cond) <= 1) && 0 <= #NULL) && 1 <= cond) && 1 <= x) && counter <= 2) && 0 <= "0") && 1 <= y) && q <= 1) && 1 <= q) && 0 <= "reach_error") && 0 <= "cohendiv-ll.c") && 0 <= "cohendiv-ll.c") && b <= 2147483647) && cond <= 1) && 1 <= cond) && 0 <= unknown-#StackHeapBarrier-unknown) && "reach_error" <= 0) && "0" <= 0) && cond <= 1) && #NULL <= 0) && 0 <= r + 2147483646) && 0 <= "reach_error") && 2 <= counter) && "cohendiv-ll.c" <= 0) && 0 <= "0") && r <= 2147483646) && 0 <= #NULL) && 1 <= \old(cond)) && a <= 1) && 1 <= b) && #NULL <= 0) || (((((((((((((((((((((((((((((x <= 2147483647 && \old(cond) <= 1) && counter <= 0) && 0 <= #NULL) && y <= 2147483647) && 0 <= "0") && a <= 0) && 1 <= y) && 0 <= "reach_error") && 0 <= "cohendiv-ll.c") && 0 <= "cohendiv-ll.c") && r <= 2147483647) && 1 <= cond) && 0 <= unknown-#StackHeapBarrier-unknown) && "reach_error" <= 0) && "0" <= 0) && cond <= 1) && 0 <= x + 2147483648) && 0 <= r + 2147483648) && #NULL <= 0) && 0 <= "reach_error") && "cohendiv-ll.c" <= 0) && 0 <= "0") && q <= 0) && 0 <= a) && 0 <= #NULL) && 1 <= \old(cond)) && 0 <= q) && 0 <= counter) && #NULL <= 0)) [2020-11-22 13:06:13,226 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && \valid[0] == 0) && y <= 2147483647) && 0 <= "0") && \valid["cohendiv-ll.c"] == 1) && 1 <= y) && \valid["0"] == 1) && "cohendiv-ll.c" == 0) && r <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "cohendiv-ll.c") && q == 0) && #NULL == 0) && \old(cond) == 1) && b == 0) && "0" <= 0) && 0 <= r + 2147483648) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a == 0) && r == x) && 14 == unknown-#length-unknown["cohendiv-ll.c"]) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 1 <= \old(cond)) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-22 13:06:13,226 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && \valid[0] == 0) && y <= 2147483647) && 0 <= "0") && \valid["cohendiv-ll.c"] == 1) && 1 <= y) && \valid["0"] == 1) && "cohendiv-ll.c" == 0) && r <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "cohendiv-ll.c") && q == 0) && #NULL == 0) && \old(cond) == 1) && b == 0) && "0" <= 0) && 0 <= r + 2147483648) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a == 0) && r == x) && 14 == unknown-#length-unknown["cohendiv-ll.c"]) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 1 <= \old(cond)) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-22 13:06:13,227 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && \valid[0] == 0) && b == a * y) && 0 <= "0") && \valid["cohendiv-ll.c"] == 1) && 1 <= y) && \valid["0"] == 1) && "cohendiv-ll.c" == 0) && r <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "cohendiv-ll.c") && q == 0) && #NULL == 0) && y <= r) && \old(cond) == 1) && "0" <= 0) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && r == x) && 14 == unknown-#length-unknown["cohendiv-ll.c"]) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 1 <= \old(cond)) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 [2020-11-22 13:06:13,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ab29bd59-db08-48e0-ab84-a977507b3657/bin/utaipan/witness.graphml [2020-11-22 13:06:13,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:13,255 INFO L168 Benchmark]: Toolchain (without parser) took 14624.98 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 75.3 MB in the beginning and 70.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 82.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,256 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:13,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.61 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 82.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.17 ms. Allocated memory is still 104.9 MB. Free memory was 82.5 MB in the beginning and 80.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,257 INFO L168 Benchmark]: Boogie Preprocessor took 30.12 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.8 MB in the end (delta: 940.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:13,258 INFO L168 Benchmark]: RCFGBuilder took 747.09 ms. Allocated memory is still 104.9 MB. Free memory was 79.6 MB in the beginning and 58.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,259 INFO L168 Benchmark]: TraceAbstraction took 13373.01 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 58.2 MB in the beginning and 73.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,259 INFO L168 Benchmark]: Witness Printer took 67.44 ms. Allocated memory is still 182.5 MB. Free memory was 73.2 MB in the beginning and 70.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:13,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.61 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 82.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.17 ms. Allocated memory is still 104.9 MB. Free memory was 82.5 MB in the beginning and 80.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.12 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.8 MB in the end (delta: 940.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 747.09 ms. Allocated memory is still 104.9 MB. Free memory was 79.6 MB in the beginning and 58.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13373.01 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 58.2 MB in the beginning and 73.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 67.44 ms. Allocated memory is still 182.5 MB. Free memory was 73.2 MB in the beginning and 70.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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 #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 #length - 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 #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 #length - 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 #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 #length - 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 #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 #length - 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 #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - 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 #length - 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 #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 #length - 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 #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2020-11-22 13:06:13,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,284 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && \valid[0] == 0) && b == a * y) && 0 <= "0") && \valid["cohendiv-ll.c"] == 1) && 1 <= y) && \valid["0"] == 1) && "cohendiv-ll.c" == 0) && r <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "cohendiv-ll.c") && q == 0) && #NULL == 0) && y <= r) && \old(cond) == 1) && "0" <= 0) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && r == x) && 14 == unknown-#length-unknown["cohendiv-ll.c"]) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && b == y) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 1 <= \old(cond)) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant [2020-11-22 13:06:13,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,289 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,298 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && \valid[0] == 0) && y <= 2147483647) && 0 <= "0") && \valid["cohendiv-ll.c"] == 1) && 1 <= y) && \valid["0"] == 1) && "cohendiv-ll.c" == 0) && r <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "cohendiv-ll.c") && q == 0) && #NULL == 0) && \old(cond) == 1) && b == 0) && "0" <= 0) && 0 <= r + 2147483648) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a == 0) && r == x) && 14 == unknown-#length-unknown["cohendiv-ll.c"]) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 1 <= \old(cond)) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant [2020-11-22 13:06:13,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: b == a * y && ((((((((((((((((((((((((((((((((((1 <= \old(cond) && x <= 2147483647) && \old(cond) <= 1) && \old(cond) <= 1) && 0 <= #NULL) && 1 <= cond) && 1 <= x) && counter <= 2) && 0 <= "0") && 1 <= y) && q <= 1) && 1 <= q) && 0 <= "reach_error") && 0 <= "cohendiv-ll.c") && 0 <= "cohendiv-ll.c") && b <= 2147483647) && cond <= 1) && 1 <= cond) && 0 <= unknown-#StackHeapBarrier-unknown) && "reach_error" <= 0) && "0" <= 0) && cond <= 1) && #NULL <= 0) && 0 <= r + 2147483646) && 0 <= "reach_error") && 2 <= counter) && "cohendiv-ll.c" <= 0) && 0 <= "0") && r <= 2147483646) && 0 <= #NULL) && 1 <= \old(cond)) && a <= 1) && 1 <= b) && #NULL <= 0) || (((((((((((((((((((((((((((((x <= 2147483647 && \old(cond) <= 1) && counter <= 0) && 0 <= #NULL) && y <= 2147483647) && 0 <= "0") && a <= 0) && 1 <= y) && 0 <= "reach_error") && 0 <= "cohendiv-ll.c") && 0 <= "cohendiv-ll.c") && r <= 2147483647) && 1 <= cond) && 0 <= unknown-#StackHeapBarrier-unknown) && "reach_error" <= 0) && "0" <= 0) && cond <= 1) && 0 <= x + 2147483648) && 0 <= r + 2147483648) && #NULL <= 0) && 0 <= "reach_error") && "cohendiv-ll.c" <= 0) && 0 <= "0") && q <= 0) && 0 <= a) && 0 <= #NULL) && 1 <= \old(cond)) && 0 <= q) && 0 <= counter) && #NULL <= 0)) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant [2020-11-22 13:06:13,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 13:06:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 13:06:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 13:06:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 13:06:13,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((((((((\old(cond) == cond && \old(cond) <= 1) && \valid[0] == 0) && y <= 2147483647) && 0 <= "0") && \valid["cohendiv-ll.c"] == 1) && 1 <= y) && \valid["0"] == 1) && "cohendiv-ll.c" == 0) && r <= 2147483647) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "cohendiv-ll.c") && q == 0) && #NULL == 0) && \old(cond) == 1) && b == 0) && "0" <= 0) && 0 <= r + 2147483648) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && a == 0) && r == x) && 14 == unknown-#length-unknown["cohendiv-ll.c"]) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && counter == 1) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= #NULL) && 1 <= \old(cond)) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.5s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 132 SDtfs, 99 SDslu, 172 SDs, 0 SdLazy, 219 SolverSat, 27 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 46 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 596 HoareAnnotationTreeSize, 9 FomulaSimplifications, 298 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 257 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 3220 SizeOfPredicates, 24 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 829, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 13, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 31, TOOLS_POST_TIME[ms]: 394, 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: 31, TOOLS_QUANTIFIERELIM_TIME[ms]: 377, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 258, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 49, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME[ms]: 102, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 181, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 13, DOMAIN_ISBOTTOM_APPLICATIONS: 13, DOMAIN_ISBOTTOM_TIME[ms]: 81, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 296, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 296, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, 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]: 4, DAG_COMPRESSION_TIME[ms]: 12, DAG_COMPRESSION_PROCESSED_NODES: 117, DAG_COMPRESSION_RETAINED_NODES: 43, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...