./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.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_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d9dc3c3809104efd72147e46930786d53da3480 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:40:04,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:40:04,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:40:04,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:40:04,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:40:04,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:40:04,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:40:04,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:40:04,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:40:05,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:40:05,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:40:05,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:40:05,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:40:05,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:40:05,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:40:05,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:40:05,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:40:05,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:40:05,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:40:05,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:40:05,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:40:05,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:40:05,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:40:05,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:40:05,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:40:05,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:40:05,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:40:05,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:40:05,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:40:05,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:40:05,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:40:05,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:40:05,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:40:05,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:40:05,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:40:05,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:40:05,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:40:05,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:40:05,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:40:05,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:40:05,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:40:05,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:40:05,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:40:05,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:40:05,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:40:05,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:40:05,126 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:40:05,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:40:05,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:40:05,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:40:05,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:40:05,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:40:05,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:40:05,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:40:05,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:40:05,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:40:05,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:40:05,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:40:05,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:40:05,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:40:05,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:40:05,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:40:05,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:40:05,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:40:05,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:40:05,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:40:05,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:40:05,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:40:05,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:40:05,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:40:05,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:40:05,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d9dc3c3809104efd72147e46930786d53da3480 [2020-11-29 19:40:05,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:40:05,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:40:05,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:40:05,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:40:05,525 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:40:05,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c [2020-11-29 19:40:05,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/data/ccaf02ceb/69b30ade11c9417b866ab3ff325d73a8/FLAGd7e8e6f89 [2020-11-29 19:40:06,261 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:40:06,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c [2020-11-29 19:40:06,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/data/ccaf02ceb/69b30ade11c9417b866ab3ff325d73a8/FLAGd7e8e6f89 [2020-11-29 19:40:06,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/data/ccaf02ceb/69b30ade11c9417b866ab3ff325d73a8 [2020-11-29 19:40:06,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:40:06,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:40:06,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:06,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:40:06,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:40:06,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:06,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462fa95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06, skipping insertion in model container [2020-11-29 19:40:06,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:06,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:40:06,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:40:06,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:06,920 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:40:06,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:06,961 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:40:06,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06 WrapperNode [2020-11-29 19:40:06,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:06,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:06,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:40:06,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:40:06,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:06,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:07,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:40:07,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:40:07,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:40:07,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... [2020-11-29 19:40:07,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:40:07,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:40:07,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:40:07,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:40:07,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/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 [2020-11-29 19:40:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:40:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:40:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:40:07,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:40:07,458 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:40:07,465 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-11-29 19:40:07,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:07 BoogieIcfgContainer [2020-11-29 19:40:07,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:40:07,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:40:07,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:40:07,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:40:07,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:40:06" (1/3) ... [2020-11-29 19:40:07,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fb75d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:40:07, skipping insertion in model container [2020-11-29 19:40:07,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:06" (2/3) ... [2020-11-29 19:40:07,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fb75d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:40:07, skipping insertion in model container [2020-11-29 19:40:07,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:07" (3/3) ... [2020-11-29 19:40:07,501 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound5.c [2020-11-29 19:40:07,520 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:40:07,525 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 19:40:07,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 19:40:07,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:40:07,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:40:07,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:40:07,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:40:07,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:40:07,577 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:40:07,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:40:07,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:40:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-29 19:40:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:40:07,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:40:07,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:07,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:40:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:07,609 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-29 19:40:07,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:07,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131997537] [2020-11-29 19:40:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:07,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131997537] [2020-11-29 19:40:07,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:07,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:40:07,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724390020] [2020-11-29 19:40:07,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:40:07,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:07,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:40:07,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:40:07,805 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-29 19:40:07,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:07,825 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2020-11-29 19:40:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:40:07,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 19:40:07,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:40:07,836 INFO L225 Difference]: With dead ends: 39 [2020-11-29 19:40:07,837 INFO L226 Difference]: Without dead ends: 17 [2020-11-29 19:40:07,840 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 [2020-11-29 19:40:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-29 19:40:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-29 19:40:07,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 19:40:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-29 19:40:07,879 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-11-29 19:40:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:40:07,880 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-29 19:40:07,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:40:07,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-29 19:40:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:40:07,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:40:07,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:07,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:40:07,882 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:40:07,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:07,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-29 19:40:07,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:07,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928372388] [2020-11-29 19:40:07,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:07,948 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:40:07,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600142647] [2020-11-29 19:40:07,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/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 [2020-11-29 19:40:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:08,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 19:40:08,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:40:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:08,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928372388] [2020-11-29 19:40:08,336 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 19:40:08,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600142647] [2020-11-29 19:40:08,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:08,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:40:08,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404912890] [2020-11-29 19:40:08,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:40:08,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:08,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:40:08,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:40:08,344 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2020-11-29 19:40:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:08,458 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-11-29 19:40:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:40:08,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 19:40:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:40:08,461 INFO L225 Difference]: With dead ends: 27 [2020-11-29 19:40:08,461 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 19:40:08,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:40:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 19:40:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-29 19:40:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 19:40:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-29 19:40:08,467 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-11-29 19:40:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:40:08,468 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-29 19:40:08,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:40:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-29 19:40:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:40:08,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:40:08,470 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:08,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-29 19:40:08,671 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:40:08,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:08,672 INFO L82 PathProgramCache]: Analyzing trace with hash -936539036, now seen corresponding path program 1 times [2020-11-29 19:40:08,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:08,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414449749] [2020-11-29 19:40:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:08,729 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:40:08,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322529277] [2020-11-29 19:40:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/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 [2020-11-29 19:40:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:08,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 19:40:08,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:40:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:09,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414449749] [2020-11-29 19:40:09,109 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 19:40:09,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322529277] [2020-11-29 19:40:09,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:40:09,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-29 19:40:09,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243226657] [2020-11-29 19:40:09,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:40:09,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:09,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:40:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:40:09,113 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 6 states. [2020-11-29 19:40:12,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:12,600 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-29 19:40:12,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:40:12,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 19:40:12,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:40:12,604 INFO L225 Difference]: With dead ends: 27 [2020-11-29 19:40:12,605 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 19:40:12,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:40:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 19:40:12,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2020-11-29 19:40:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 19:40:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-29 19:40:12,612 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 14 [2020-11-29 19:40:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:40:12,612 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-29 19:40:12,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:40:12,612 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-29 19:40:12,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:40:12,614 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:40:12,614 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:12,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:40:12,833 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:40:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:12,834 INFO L82 PathProgramCache]: Analyzing trace with hash -320965959, now seen corresponding path program 2 times [2020-11-29 19:40:12,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:12,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628813579] [2020-11-29 19:40:12,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:12,856 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:40:12,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611107222] [2020-11-29 19:40:12,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/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 [2020-11-29 19:40:12,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 19:40:12,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 19:40:12,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 31 conjunts are in the unsatisfiable core [2020-11-29 19:40:12,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:40:33,751 WARN L193 SmtUtils]: Spent 20.52 s on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 19:40:33,757 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 19:40:33,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:40:41,944 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 16 [2020-11-29 19:40:47,224 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification that was a NOOP. DAG size: 15 [2020-11-29 19:40:47,262 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:40:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:40:49,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628813579] [2020-11-29 19:40:49,455 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 19:40:49,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611107222] [2020-11-29 19:40:49,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:40:49,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-29 19:40:49,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303957912] [2020-11-29 19:40:49,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 19:40:49,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:49,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 19:40:49,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=49, Unknown=4, NotChecked=0, Total=72 [2020-11-29 19:40:49,458 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2020-11-29 19:41:09,132 WARN L193 SmtUtils]: Spent 9.08 s on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2020-11-29 19:41:12,356 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 18 [2020-11-29 19:41:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:41:25,435 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-11-29 19:41:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 19:41:25,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-29 19:41:25,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:41:25,437 INFO L225 Difference]: With dead ends: 37 [2020-11-29 19:41:25,437 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 19:41:25,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 50.9s TimeCoverageRelationStatistics Valid=34, Invalid=93, Unknown=5, NotChecked=0, Total=132 [2020-11-29 19:41:25,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 19:41:25,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2020-11-29 19:41:25,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 19:41:25,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-11-29 19:41:25,444 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 17 [2020-11-29 19:41:25,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:41:25,444 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-11-29 19:41:25,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 19:41:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-11-29 19:41:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 19:41:25,446 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:41:25,446 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:41:25,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:41:25,653 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:41:25,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:25,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1293782972, now seen corresponding path program 3 times [2020-11-29 19:41:25,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:41:25,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572216126] [2020-11-29 19:41:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:41:25,671 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:41:25,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448749983] [2020-11-29 19:41:25,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/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 [2020-11-29 19:41:32,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-29 19:41:32,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 19:41:32,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 32 conjunts are in the unsatisfiable core [2020-11-29 19:41:32,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:41:32,487 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-29 19:41:32,488 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:41:32,569 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-29 19:41:32,571 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:41:32,724 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-29 19:41:34,712 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-11-29 19:41:39,356 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification that was a NOOP. DAG size: 42 [2020-11-29 19:41:39,361 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 19:41:39,361 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:07,012 WARN L193 SmtUtils]: Spent 26.25 s on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-29 19:42:34,786 WARN L193 SmtUtils]: Spent 24.54 s on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2020-11-29 19:42:34,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,846 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,875 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,879 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,896 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,945 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,948 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:34,962 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:42:54,499 WARN L193 SmtUtils]: Spent 19.49 s on a formula simplification that was a NOOP. DAG size: 42 [2020-11-29 19:43:40,288 WARN L193 SmtUtils]: Spent 45.79 s on a formula simplification that was a NOOP. DAG size: 42 [2020-11-29 19:43:44,506 WARN L838 $PredicateComparison]: unable to prove that (or (<= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (and (exists ((ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~x~0 Int) (ULTIMATE.start_main_~y~0 Int)) (let ((.cse1 (* ULTIMATE.start_main_~a~0 (- 1)))) (let ((.cse3 (+ .cse1 ULTIMATE.start_main_~x~0))) (let ((.cse2 (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0)) (.cse0 (div .cse3 ULTIMATE.start_main_~z~0))) (and (<= 0 ULTIMATE.start_main_~z~0) (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) (= (mod (+ .cse0 .cse1) ULTIMATE.start_main_~z~0) 0) (= (mod .cse2 ULTIMATE.start_main_~z~0) 0) (not (= ULTIMATE.start_main_~z~0 0)) (<= 0 ULTIMATE.start_main_~a~0) (<= ULTIMATE.start_main_~z~0 5) (<= ULTIMATE.start_main_~a~0 5) (= (+ .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0 .cse2)) (+ (* .cse0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0)) (= (mod .cse3 ULTIMATE.start_main_~z~0) 0) (not (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)))))))) (<= 0 c_ULTIMATE.start___VERIFIER_assert_~cond))) is different from false [2020-11-29 19:43:46,574 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:43:54,968 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~x~0 Int) (ULTIMATE.start_main_~y~0 Int)) (let ((.cse1 (* ULTIMATE.start_main_~a~0 (- 1)))) (let ((.cse3 (+ .cse1 ULTIMATE.start_main_~x~0))) (let ((.cse2 (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0)) (.cse0 (div .cse3 ULTIMATE.start_main_~z~0))) (and (<= 0 ULTIMATE.start_main_~z~0) (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) (= (mod (+ .cse0 .cse1) ULTIMATE.start_main_~z~0) 0) (= (mod .cse2 ULTIMATE.start_main_~z~0) 0) (not (= ULTIMATE.start_main_~z~0 0)) (<= 0 ULTIMATE.start_main_~a~0) (<= ULTIMATE.start_main_~z~0 5) (<= ULTIMATE.start_main_~a~0 5) (= (+ .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0 .cse2)) (+ (* .cse0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0)) (= (mod .cse3 ULTIMATE.start_main_~z~0) 0) (not (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)))))))) is different from false [2020-11-29 19:43:56,994 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~a~0 Int) (ULTIMATE.start_main_~z~0 Int) (ULTIMATE.start_main_~x~0 Int) (ULTIMATE.start_main_~y~0 Int)) (let ((.cse1 (* ULTIMATE.start_main_~a~0 (- 1)))) (let ((.cse3 (+ .cse1 ULTIMATE.start_main_~x~0))) (let ((.cse2 (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0)) (.cse0 (div .cse3 ULTIMATE.start_main_~z~0))) (and (<= 0 ULTIMATE.start_main_~z~0) (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) (= (mod (+ .cse0 .cse1) ULTIMATE.start_main_~z~0) 0) (= (mod .cse2 ULTIMATE.start_main_~z~0) 0) (not (= ULTIMATE.start_main_~z~0 0)) (<= 0 ULTIMATE.start_main_~a~0) (<= ULTIMATE.start_main_~z~0 5) (<= ULTIMATE.start_main_~a~0 5) (= (+ .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0 .cse2)) (+ (* .cse0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0)) (= (mod .cse3 ULTIMATE.start_main_~z~0) 0) (not (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)))))))) is different from true [2020-11-29 19:43:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2020-11-29 19:43:57,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572216126] [2020-11-29 19:43:57,002 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 19:43:57,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448749983] [2020-11-29 19:43:57,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:43:57,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-29 19:43:57,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982545358] [2020-11-29 19:43:57,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 19:43:57,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:57,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 19:43:57,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=73, Unknown=4, NotChecked=38, Total=156 [2020-11-29 19:43:57,006 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 13 states. [2020-11-29 19:44:49,315 WARN L193 SmtUtils]: Spent 37.34 s on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-11-29 19:45:24,552 WARN L193 SmtUtils]: Spent 26.62 s on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-29 19:48:15,191 WARN L193 SmtUtils]: Spent 2.61 m on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-11-29 19:49:21,804 WARN L193 SmtUtils]: Spent 58.39 s on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-11-29 19:49:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:26,258 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-29 19:49:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 19:49:26,260 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2020-11-29 19:49:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:26,261 INFO L225 Difference]: With dead ends: 25 [2020-11-29 19:49:26,261 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:49:26,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 374.1s TimeCoverageRelationStatistics Valid=88, Invalid=182, Unknown=10, NotChecked=62, Total=342 [2020-11-29 19:49:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:49:26,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:49:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:49:26,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:49:26,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-29 19:49:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:26,263 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:49:26,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 19:49:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:49:26,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:49:26,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:49:26,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:50:32,573 WARN L193 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-11-29 19:53:32,972 WARN L193 SmtUtils]: Spent 3.01 m on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-11-29 19:53:32,975 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-29 19:53:32,976 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-29 19:53:32,976 INFO L270 CegarLoopResult]: At program point L15-1(lines 39 40) the Hoare annotation is: (let ((.cse11 (* ULTIMATE.start_main_~a~0 (- 1)))) (let ((.cse4 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (.cse13 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse12 (+ .cse11 ULTIMATE.start_main_~x~0))) (let ((.cse2 (or .cse13 (= (mod .cse12 ULTIMATE.start_main_~z~0) 0))) (.cse7 (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) (.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 0 ULTIMATE.start_main_~a~0)) (.cse5 (<= ULTIMATE.start_main_~z~0 5)) (.cse6 (<= ULTIMATE.start_main_~a~0 5)) (.cse8 (= ULTIMATE.start_main_~az~0 .cse4))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 .cse4)) .cse5 .cse6 .cse7 .cse8) (let ((.cse10 (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0)) (.cse9 (div .cse12 ULTIMATE.start_main_~z~0))) (and .cse0 (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) (= (+ .cse9 (* ULTIMATE.start_main_~az~0 .cse10)) (+ (* .cse9 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0)) .cse2 (= (mod .cse10 ULTIMATE.start_main_~z~0) 0) .cse5 .cse6 (= (mod (+ .cse9 .cse11) ULTIMATE.start_main_~z~0) 0) .cse1 (not (= ULTIMATE.start_main_~z~0 0)) .cse3 .cse7 .cse8)) (and .cse0 .cse13 .cse1 .cse3 .cse5 .cse6 (= ULTIMATE.start_main_~y~0 1) .cse8))))) [2020-11-29 19:53:32,976 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-29 19:53:32,976 INFO L277 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-11-29 19:53:32,976 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-29 19:53:32,977 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-11-29 19:53:32,977 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-11-29 19:53:32,977 INFO L270 CegarLoopResult]: At program point L36-2(lines 36 45) the Hoare annotation is: (let ((.cse12 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) (let ((.cse1 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse0 (<= 0 ULTIMATE.start_main_~z~0)) (.cse2 (<= 0 ULTIMATE.start_main_~a~0)) (.cse3 (<= ULTIMATE.start_main_~z~0 5)) (.cse4 (<= ULTIMATE.start_main_~a~0 5)) (.cse5 (= ULTIMATE.start_main_~az~0 .cse12))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~y~0 1) .cse5) (let ((.cse11 (= ULTIMATE.start_main_~z~0 0))) (let ((.cse6 (not .cse11))) (and .cse0 (or (= ULTIMATE.start_main_~y~0 0) (and (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) .cse6)) .cse2 (or (let ((.cse9 (* ULTIMATE.start_main_~a~0 (- 1)))) (let ((.cse10 (+ .cse9 ULTIMATE.start_main_~x~0))) (let ((.cse7 (div .cse10 ULTIMATE.start_main_~z~0)) (.cse8 (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0))) (and (= (+ .cse7 (* ULTIMATE.start_main_~az~0 .cse8)) (+ (* .cse7 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0)) (= (mod (+ .cse7 .cse9) ULTIMATE.start_main_~z~0) 0) (= (mod .cse8 ULTIMATE.start_main_~z~0) 0) .cse6 (= (mod .cse10 ULTIMATE.start_main_~z~0) 0))))) (and .cse1 .cse11)) .cse3 .cse4 .cse5))) (and .cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 .cse12)) .cse3 .cse4 .cse5)))) [2020-11-29 19:53:32,977 INFO L274 CegarLoopResult]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2020-11-29 19:53:32,977 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:53:32,977 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:53:32,978 INFO L277 CegarLoopResult]: At program point L47(lines 21 48) the Hoare annotation is: true [2020-11-29 19:53:33,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:53:33 BoogieIcfgContainer [2020-11-29 19:53:33,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:53:33,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:53:33,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:53:33,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:53:33,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:07" (3/4) ... [2020-11-29 19:53:33,008 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:53:33,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-29 19:53:33,021 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:53:33,021 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:53:33,022 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:53:33,107 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7fdf8057-c8cb-41a4-81e0-16e674a08dd3/bin/uautomizer/witness.graphml [2020-11-29 19:53:33,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:53:33,109 INFO L168 Benchmark]: Toolchain (without parser) took 806482.41 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 55.5 MB in the beginning and 80.5 MB in the end (delta: -24.9 MB). Peak memory consumption was 133.3 kB. Max. memory is 16.1 GB. [2020-11-29 19:53:33,109 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:53:33,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.08 ms. Allocated memory is still 86.0 MB. Free memory was 55.4 MB in the beginning and 64.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:33,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.99 ms. Allocated memory is still 86.0 MB. Free memory was 64.6 MB in the beginning and 62.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:33,111 INFO L168 Benchmark]: Boogie Preprocessor took 27.40 ms. Allocated memory is still 86.0 MB. Free memory was 62.9 MB in the beginning and 62.1 MB in the end (delta: 776.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:53:33,112 INFO L168 Benchmark]: RCFGBuilder took 432.03 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 49.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:33,113 INFO L168 Benchmark]: TraceAbstraction took 805521.35 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 48.6 MB in the beginning and 83.6 MB in the end (delta: -35.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:33,114 INFO L168 Benchmark]: Witness Printer took 104.11 ms. Allocated memory is still 111.1 MB. Free memory was 83.6 MB in the beginning and 80.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:53:33,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.08 ms. Allocated memory is still 86.0 MB. Free memory was 55.4 MB in the beginning and 64.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.99 ms. Allocated memory is still 86.0 MB. Free memory was 64.6 MB in the beginning and 62.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.40 ms. Allocated memory is still 86.0 MB. Free memory was 62.9 MB in the beginning and 62.1 MB in the end (delta: 776.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 432.03 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 49.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 805521.35 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 48.6 MB in the beginning and 83.6 MB in the end (delta: -35.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 104.11 ms. Allocated memory is still 111.1 MB. Free memory was 83.6 MB in the beginning and 80.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((0 <= z && a == x) && 0 <= a) && z <= 5) && a <= 5) && y == 1) && az == a * z) || ((((((0 <= z && (y == 0 || (y % z == 0 && !(z == 0)))) && 0 <= a) && ((((((a * -1 + x) / z + az * (y / z) == (a * -1 + x) / z * z + a && ((a * -1 + x) / z + a * -1) % z == 0) && y / z % z == 0) && !(z == 0)) && (a * -1 + x) % z == 0) || (a == x && z == 0))) && z <= 5) && a <= 5) && az == a * z)) || (((((((0 <= z && 1 <= cond) && z == y) && 0 <= a) && x == a + a * z) && z <= 5) && a <= 5) && az == a * z) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((0 <= z && 1 == cond) && (a == x || (a * -1 + x) % z == 0)) && z == y) && 0 <= a) && x == a + a * z) && z <= 5) && a <= 5) && z * x + a == az * y + x) && az == a * z) || ((((((((((((0 <= z && y % z == 0) && (a * -1 + x) / z + az * (y / z) == (a * -1 + x) / z * z + a) && (a == x || (a * -1 + x) % z == 0)) && y / z % z == 0) && z <= 5) && a <= 5) && ((a * -1 + x) / z + a * -1) % z == 0) && 1 == cond) && !(z == 0)) && 0 <= a) && z * x + a == az * y + x) && az == a * z)) || (((((((0 <= z && a == x) && 1 == cond) && 0 <= a) && z <= 5) && a <= 5) && y == 1) && az == a * z) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 558.8s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 368.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 246.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 43 SDslu, 136 SDs, 0 SdLazy, 158 SolverSat, 25 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 47.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 425.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 343 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 187 FormulaSimplificationTreeSizeReductionInter, 246.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 6.9s SatisfiabilityAnalysisTime, 181.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 68 ConstructedInterpolants, 2 QuantifiedInterpolants, 16844 SizeOfPredicates, 41 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 11/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...