./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-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_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 73916c7f3287d52e9f1b60672ac0b7eb47f7096b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 73916c7f3287d52e9f1b60672ac0b7eb47f7096b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:10:30,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:10:30,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:10:30,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:10:30,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:10:30,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:10:30,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:10:30,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:10:30,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:10:30,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:10:30,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:10:30,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:10:30,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:10:30,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:10:30,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:10:30,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:10:30,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:10:30,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:10:30,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:10:30,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:10:30,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:10:30,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:10:30,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:10:30,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:10:30,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:10:30,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:10:30,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:10:30,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:10:30,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:10:30,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:10:30,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:10:30,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:10:30,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:10:30,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:10:30,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:10:30,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:10:30,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:10:30,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:10:30,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:10:30,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:10:30,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:10:30,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:10:30,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:10:30,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:10:30,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:10:30,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:10:30,197 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:10:30,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:10:30,197 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:10:30,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:10:30,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:10:30,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:10:30,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:10:30,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:10:30,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:10:30,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:10:30,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:10:30,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:10:30,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:10:30,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:10:30,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:10:30,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:10:30,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:10:30,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:10:30,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:10:30,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:10:30,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:10:30,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:10:30,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:10:30,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:10:30,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:10:30,204 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_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73916c7f3287d52e9f1b60672ac0b7eb47f7096b [2020-11-30 01:10:30,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:10:30,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:10:30,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:10:30,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:10:30,509 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:10:30,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c [2020-11-30 01:10:30,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/b82179724/be9a53910fa84f88a984fd9eafa82b32/FLAG7d3c237e1 [2020-11-30 01:10:31,041 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:10:31,042 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c [2020-11-30 01:10:31,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/b82179724/be9a53910fa84f88a984fd9eafa82b32/FLAG7d3c237e1 [2020-11-30 01:10:31,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/b82179724/be9a53910fa84f88a984fd9eafa82b32 [2020-11-30 01:10:31,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:10:31,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:10:31,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:31,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:10:31,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:10:31,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392d9d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31, skipping insertion in model container [2020-11-30 01:10:31,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:10:31,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:10:31,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:31,696 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:10:31,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:31,730 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:10:31,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31 WrapperNode [2020-11-30 01:10:31,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:31,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:31,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:10:31,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:10:31,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:31,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:10:31,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:10:31,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:10:31,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... [2020-11-30 01:10:31,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:10:31,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:10:31,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:10:31,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:10:31,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 [2020-11-30 01:10:31,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:10:31,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:10:31,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:10:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:10:32,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:10:32,307 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-30 01:10:32,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:32 BoogieIcfgContainer [2020-11-30 01:10:32,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:10:32,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:10:32,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:10:32,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:10:32,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:10:31" (1/3) ... [2020-11-30 01:10:32,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5feb80b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:10:32, skipping insertion in model container [2020-11-30 01:10:32,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:31" (2/3) ... [2020-11-30 01:10:32,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5feb80b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:10:32, skipping insertion in model container [2020-11-30 01:10:32,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:32" (3/3) ... [2020-11-30 01:10:32,329 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound5.c [2020-11-30 01:10:32,339 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:10:32,343 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:10:32,354 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:10:32,378 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:10:32,378 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:10:32,379 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:10:32,379 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:10:32,379 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:10:32,379 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:10:32,379 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:10:32,380 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:10:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-30 01:10:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:10:32,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:32,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:32,400 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:32,406 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-11-30 01:10:32,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:32,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552515611] [2020-11-30 01:10:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:32,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552515611] [2020-11-30 01:10:32,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:32,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:10:32,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718033551] [2020-11-30 01:10:32,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:10:32,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:32,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:10:32,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:10:32,562 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-11-30 01:10:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:32,579 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2020-11-30 01:10:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:10:32,581 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-30 01:10:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:32,589 INFO L225 Difference]: With dead ends: 45 [2020-11-30 01:10:32,589 INFO L226 Difference]: Without dead ends: 20 [2020-11-30 01:10:32,592 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 [2020-11-30 01:10:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-30 01:10:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-30 01:10:32,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 01:10:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-30 01:10:32,621 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2020-11-30 01:10:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:32,621 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-30 01:10:32,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:10:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-30 01:10:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:10:32,622 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:32,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:32,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:10:32,623 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:32,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:32,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-11-30 01:10:32,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:32,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997497714] [2020-11-30 01:10:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:32,646 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:32,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513531886] [2020-11-30 01:10:32,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 [2020-11-30 01:10:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:32,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:10:32,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:34,932 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:41,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997497714] [2020-11-30 01:10:41,109 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:41,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513531886] [2020-11-30 01:10:41,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:41,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:10:41,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062821865] [2020-11-30 01:10:41,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:10:41,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:41,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:10:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:10:41,113 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 4 states. [2020-11-30 01:10:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:43,413 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-11-30 01:10:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:10:43,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:10:43,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:43,416 INFO L225 Difference]: With dead ends: 31 [2020-11-30 01:10:43,417 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:10:43,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:10:43,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2020-11-30 01:10:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:10:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 01:10:43,423 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 13 [2020-11-30 01:10:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:43,423 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 01:10:43,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:10:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 01:10:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:10:43,424 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:43,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:43,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 01:10:43,648 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:43,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:43,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2132885218, now seen corresponding path program 1 times [2020-11-30 01:10:43,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:43,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45581880] [2020-11-30 01:10:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:43,672 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:43,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910039400] [2020-11-30 01:10:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 [2020-11-30 01:10:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:43,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 01:10:43,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:43,936 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:10:43,941 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:10:43,946 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:44,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:44,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45581880] [2020-11-30 01:10:44,178 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:44,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910039400] [2020-11-30 01:10:44,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:44,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:10:44,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998193508] [2020-11-30 01:10:44,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:10:44,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:44,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:10:44,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:10:44,181 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2020-11-30 01:10:46,633 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-11-30 01:10:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:57,171 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-30 01:10:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:10:57,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 01:10:57,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:57,172 INFO L225 Difference]: With dead ends: 22 [2020-11-30 01:10:57,172 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 01:10:57,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:10:57,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 01:10:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 01:10:57,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:10:57,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-11-30 01:10:57,177 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16 [2020-11-30 01:10:57,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:57,177 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-11-30 01:10:57,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:10:57,177 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-11-30 01:10:57,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:10:57,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:57,178 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:57,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:57,392 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:57,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1696542130, now seen corresponding path program 1 times [2020-11-30 01:10:57,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:57,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51782018] [2020-11-30 01:10:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:57,419 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:57,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53676378] [2020-11-30 01:10:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 [2020-11-30 01:10:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:57,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-30 01:10:57,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:57,793 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2020-11-30 01:10:57,797 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 01:10:57,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:57,798 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:10:57,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:00,359 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 33 [2020-11-30 01:11:00,363 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-11-30 01:11:00,366 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:04,617 WARN L193 SmtUtils]: Spent 4.17 s on a formula simplification that was a NOOP. DAG size: 27 [2020-11-30 01:11:07,787 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-11-30 01:11:07,849 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:08,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51782018] [2020-11-30 01:11:08,320 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:11:08,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53676378] [2020-11-30 01:11:08,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:11:08,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-30 01:11:08,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615913752] [2020-11-30 01:11:08,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:11:08,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:08,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:11:08,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:11:08,322 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 9 states. [2020-11-30 01:11:13,393 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 18 [2020-11-30 01:11:18,682 WARN L193 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-30 01:11:24,985 WARN L193 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2020-11-30 01:11:35,350 WARN L193 SmtUtils]: Spent 7.85 s on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-30 01:11:45,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:45,529 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-11-30 01:11:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:11:45,531 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-30 01:11:45,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:45,532 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:11:45,532 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 01:11:45,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 31.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:11:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 01:11:45,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 22. [2020-11-30 01:11:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:11:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-11-30 01:11:45,540 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 17 [2020-11-30 01:11:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:45,541 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-11-30 01:11:45,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:11:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-11-30 01:11:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:11:45,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:45,542 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:11:45,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:11:45,742 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:11:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:45,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1696601712, now seen corresponding path program 1 times [2020-11-30 01:11:45,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:45,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268672981] [2020-11-30 01:11:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:45,760 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:11:45,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361270343] [2020-11-30 01:11:45,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 [2020-11-30 01:11:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:45,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-30 01:11:45,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:11:46,059 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2020-11-30 01:11:46,062 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 01:11:46,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:46,063 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:11:46,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:48,365 WARN L838 $PredicateComparison]: unable to prove that (and (= (mod (+ c_ULTIMATE.start_main_~u~0 1) (- 2)) 0) (let ((.cse0 (= (+ (* c_ULTIMATE.start_main_~u~0 c_ULTIMATE.start_main_~u~0) (* 2 c_ULTIMATE.start_main_~v~0)) (+ (* 2 c_ULTIMATE.start_main_~u~0) (* c_ULTIMATE.start_main_~v~0 c_ULTIMATE.start_main_~v~0) (* 4 c_ULTIMATE.start_main_~r~0) (* 4 c_ULTIMATE.start_main_~A~0))))) (or (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse0) (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse0)))) (<= 0 c_ULTIMATE.start_main_~A~0) (= (mod c_ULTIMATE.start_main_~A~0 2) 1) (= (+ c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~A~0) (let ((.cse1 (div (+ (* c_ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (* .cse1 .cse1))) (= c_ULTIMATE.start_main_~v~0 1)) is different from false [2020-11-30 01:11:48,379 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:11:48,379 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:58,760 WARN L193 SmtUtils]: Spent 8.26 s on a formula simplification that was a NOOP. DAG size: 33 [2020-11-30 01:12:13,350 WARN L193 SmtUtils]: Spent 6.33 s on a formula simplification that was a NOOP. DAG size: 36 [2020-11-30 01:12:13,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268672981] [2020-11-30 01:12:13,368 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:12:13,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361270343] [2020-11-30 01:12:13,369 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-11-30 01:12:13,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:13,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-30 01:12:13,369 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-11-30 01:12:13,369 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:12:13,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:12:13,599 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-30 01:12:13,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:12:13 BoogieIcfgContainer [2020-11-30 01:12:13,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:12:13,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:12:13,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:12:13,600 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:12:13,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:32" (3/4) ... [2020-11-30 01:12:13,603 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:12:13,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:12:13,605 INFO L168 Benchmark]: Toolchain (without parser) took 102155.14 ms. Allocated memory is still 98.6 MB. Free memory was 68.6 MB in the beginning and 34.3 MB in the end (delta: 34.3 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:13,605 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 39.4 MB in the beginning and 39.3 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:13,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.17 ms. Allocated memory is still 98.6 MB. Free memory was 68.6 MB in the beginning and 75.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:13,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.50 ms. Allocated memory is still 98.6 MB. Free memory was 75.8 MB in the beginning and 74.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:13,607 INFO L168 Benchmark]: Boogie Preprocessor took 54.05 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 72.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:13,608 INFO L168 Benchmark]: RCFGBuilder took 463.47 ms. Allocated memory is still 98.6 MB. Free memory was 72.7 MB in the beginning and 59.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:13,609 INFO L168 Benchmark]: TraceAbstraction took 101289.28 ms. Allocated memory is still 98.6 MB. Free memory was 59.0 MB in the beginning and 35.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:13,610 INFO L168 Benchmark]: Witness Printer took 3.66 ms. Allocated memory is still 98.6 MB. Free memory was 35.2 MB in the beginning and 34.3 MB in the end (delta: 849.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:13,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 39.4 MB in the beginning and 39.3 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.17 ms. Allocated memory is still 98.6 MB. Free memory was 68.6 MB in the beginning and 75.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.50 ms. Allocated memory is still 98.6 MB. Free memory was 75.8 MB in the beginning and 74.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.05 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 72.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 463.47 ms. Allocated memory is still 98.6 MB. Free memory was 72.7 MB in the beginning and 59.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 101289.28 ms. Allocated memory is still 98.6 MB. Free memory was 59.0 MB in the beginning and 35.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.66 ms. Allocated memory is still 98.6 MB. Free memory was 35.2 MB in the beginning and 34.3 MB in the end (delta: 849.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L20] int A, R; [L21] long long u, v, r; [L22] A = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L24] R = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L31] u = ((long long) 2 * R) + 1 [L32] v = 1 [L33] r = ((long long) R * R) - A [L35] COND TRUE 1 [L12] COND FALSE !(!(cond)) [L37] COND FALSE !(!(r != 0)) [L39] COND FALSE !(r > 0) [L43] r = r + u [L44] u = u + 2 [L35] COND TRUE 1 [L12] COND TRUE !(cond) [L5] __assert_fail("0", "fermat2-ll.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 101.2s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 52.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 55 SDslu, 92 SDs, 0 SdLazy, 94 SolverSat, 24 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 30.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 32.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 19.6s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 5 QuantifiedInterpolants, 7371 SizeOfPredicates, 26 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:12:16,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:12:16,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:12:16,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:12:16,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:12:16,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:12:16,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:12:16,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:12:16,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:12:16,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:12:16,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:12:16,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:12:16,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:12:16,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:12:16,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:12:16,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:12:16,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:12:16,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:12:16,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:12:16,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:12:16,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:12:16,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:12:16,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:12:16,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:12:16,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:12:16,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:12:16,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:12:16,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:12:16,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:12:16,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:12:16,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:12:16,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:12:16,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:12:16,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:12:16,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:12:16,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:12:16,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:12:16,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:12:16,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:12:16,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:12:16,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:12:16,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 01:12:16,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:12:16,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:12:16,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:12:16,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:12:16,168 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:12:16,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:12:16,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:12:16,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:12:16,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:12:16,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:12:16,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:12:16,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:12:16,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:12:16,171 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:12:16,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:12:16,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:12:16,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:12:16,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:12:16,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:12:16,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:12:16,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:12:16,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:12:16,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:12:16,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:12:16,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:12:16,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:12:16,174 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:12:16,175 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:12:16,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:12:16,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:12:16,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:12:16,176 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73916c7f3287d52e9f1b60672ac0b7eb47f7096b [2020-11-30 01:12:16,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:12:16,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:12:16,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:12:16,628 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:12:16,628 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:12:16,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c [2020-11-30 01:12:16,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/6598f0fd3/6a299bd1fd4444b79647977b33c468a0/FLAGb5e20e635 [2020-11-30 01:12:17,267 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:12:17,268 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound5.c [2020-11-30 01:12:17,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/6598f0fd3/6a299bd1fd4444b79647977b33c468a0/FLAGb5e20e635 [2020-11-30 01:12:17,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/data/6598f0fd3/6a299bd1fd4444b79647977b33c468a0 [2020-11-30 01:12:17,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:12:17,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:12:17,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:17,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:12:17,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:12:17,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:17" (1/1) ... [2020-11-30 01:12:17,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e336fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:17, skipping insertion in model container [2020-11-30 01:12:17,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:17" (1/1) ... [2020-11-30 01:12:17,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:12:17,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:12:17,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:17,940 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:12:17,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:18,014 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:12:18,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18 WrapperNode [2020-11-30 01:12:18,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:18,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:18,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:12:18,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:12:18,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:18,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:12:18,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:12:18,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:12:18,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... [2020-11-30 01:12:18,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:12:18,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:12:18,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:12:18,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:12:18,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/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 [2020-11-30 01:12:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:12:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:12:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:12:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:12:19,108 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:12:19,109 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-30 01:12:19,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:19 BoogieIcfgContainer [2020-11-30 01:12:19,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:12:19,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:12:19,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:12:19,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:12:19,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:12:17" (1/3) ... [2020-11-30 01:12:19,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7322f191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:19, skipping insertion in model container [2020-11-30 01:12:19,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:18" (2/3) ... [2020-11-30 01:12:19,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7322f191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:19, skipping insertion in model container [2020-11-30 01:12:19,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:19" (3/3) ... [2020-11-30 01:12:19,119 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound5.c [2020-11-30 01:12:19,130 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:12:19,135 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:12:19,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:12:19,170 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:12:19,170 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:12:19,170 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:12:19,170 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:12:19,170 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:12:19,171 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:12:19,171 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:12:19,171 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:12:19,183 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-30 01:12:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:19,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:19,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:19,189 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:19,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:19,194 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-11-30 01:12:19,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:12:19,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702577371] [2020-11-30 01:12:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:12:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:19,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:12:19,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:12:19,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:19,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:12:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:19,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702577371] [2020-11-30 01:12:19,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:19,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:12:19,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33884243] [2020-11-30 01:12:19,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:12:19,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:12:19,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:12:19,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:12:19,577 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-11-30 01:12:19,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:19,597 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2020-11-30 01:12:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:12:19,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-30 01:12:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:19,609 INFO L225 Difference]: With dead ends: 45 [2020-11-30 01:12:19,609 INFO L226 Difference]: Without dead ends: 20 [2020-11-30 01:12:19,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:12:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-30 01:12:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-30 01:12:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 01:12:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-30 01:12:19,644 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2020-11-30 01:12:19,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:19,645 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-30 01:12:19,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:12:19,645 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-30 01:12:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:19,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:19,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:19,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:12:19,864 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:19,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-11-30 01:12:19,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:12:19,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791105715] [2020-11-30 01:12:19,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:12:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:20,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:12:20,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:12:20,247 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:12:20,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:12:21,130 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:12:21,135 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:12:29,991 WARN L193 SmtUtils]: Spent 8.46 s on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2020-11-30 01:12:34,785 WARN L193 SmtUtils]: Spent 4.30 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 01:12:34,793 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:12:39,657 WARN L193 SmtUtils]: Spent 4.18 s on a formula simplification that was a NOOP. DAG size: 19 [2020-11-30 01:12:40,180 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-11-30 01:12:40,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:12:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:40,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:12:44,253 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-30 01:12:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:44,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791105715] [2020-11-30 01:12:44,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:44,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 4] imperfect sequences [] total 14 [2020-11-30 01:12:44,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844077750] [2020-11-30 01:12:44,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:12:44,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:12:44,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:12:44,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:12:44,277 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 14 states. [2020-11-30 01:12:56,834 WARN L193 SmtUtils]: Spent 10.63 s on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-11-30 01:13:08,884 WARN L193 SmtUtils]: Spent 11.24 s on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2020-11-30 01:13:25,953 WARN L193 SmtUtils]: Spent 16.78 s on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2020-11-30 01:13:36,093 WARN L193 SmtUtils]: Spent 9.77 s on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-11-30 01:13:45,846 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2020-11-30 01:14:09,607 WARN L193 SmtUtils]: Spent 13.26 s on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-11-30 01:14:23,032 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 39 [2020-11-30 01:14:48,432 WARN L193 SmtUtils]: Spent 11.35 s on a formula simplification. DAG size of input: 47 DAG size of output: 25 [2020-11-30 01:14:54,678 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 35 [2020-11-30 01:15:15,595 WARN L193 SmtUtils]: Spent 11.05 s on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2020-11-30 01:15:16,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:15:16,980 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2020-11-30 01:15:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-30 01:15:17,005 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2020-11-30 01:15:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:15:17,006 INFO L225 Difference]: With dead ends: 54 [2020-11-30 01:15:17,006 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 01:15:17,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 130.1s TimeCoverageRelationStatistics Valid=205, Invalid=548, Unknown=3, NotChecked=0, Total=756 [2020-11-30 01:15:17,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 01:15:17,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 26. [2020-11-30 01:15:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 01:15:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-11-30 01:15:17,014 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 13 [2020-11-30 01:15:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:15:17,014 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-11-30 01:15:17,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:15:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-11-30 01:15:17,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:15:17,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:15:17,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:15:17,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:15:17,216 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:15:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:17,217 INFO L82 PathProgramCache]: Analyzing trace with hash 2132885218, now seen corresponding path program 1 times [2020-11-30 01:15:17,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:15:17,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995253381] [2020-11-30 01:15:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:15:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:15:17,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-30 01:15:17,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:15:17,451 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:15:17,581 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-11-30 01:15:17,583 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:15:17,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:15:18,025 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-11-30 01:15:24,003 WARN L193 SmtUtils]: Spent 3.66 s on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-11-30 01:15:24,616 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-11-30 01:15:24,624 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:15:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:24,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:15:32,201 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 17 [2020-11-30 01:15:37,771 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 23 [2020-11-30 01:15:43,858 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 25 [2020-11-30 01:15:43,868 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 01:15:43,868 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:15:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:44,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995253381] [2020-11-30 01:15:44,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:15:44,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 6] imperfect sequences [] total 16 [2020-11-30 01:15:44,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647387302] [2020-11-30 01:15:44,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 01:15:44,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:15:44,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 01:15:44,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:15:44,100 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 16 states. [2020-11-30 01:15:52,601 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2020-11-30 01:15:53,448 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-11-30 01:15:54,657 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2020-11-30 01:16:06,372 WARN L193 SmtUtils]: Spent 10.11 s on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-11-30 01:16:18,973 WARN L193 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-11-30 01:16:32,265 WARN L193 SmtUtils]: Spent 11.46 s on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-11-30 01:17:42,260 WARN L193 SmtUtils]: Spent 54.02 s on a formula simplification. DAG size of input: 50 DAG size of output: 32 [2020-11-30 01:19:04,221 WARN L193 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-11-30 01:19:20,506 WARN L193 SmtUtils]: Spent 11.54 s on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-11-30 01:19:21,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:19:21,556 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2020-11-30 01:19:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-30 01:19:21,564 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2020-11-30 01:19:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:19:21,564 INFO L225 Difference]: With dead ends: 40 [2020-11-30 01:19:21,565 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 01:19:21,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 227.8s TimeCoverageRelationStatistics Valid=255, Invalid=548, Unknown=9, NotChecked=0, Total=812 [2020-11-30 01:19:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 01:19:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2020-11-30 01:19:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 01:19:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-11-30 01:19:21,585 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 16 [2020-11-30 01:19:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:19:21,585 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-11-30 01:19:21,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 01:19:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-11-30 01:19:21,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:19:21,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:19:21,589 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:19:21,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:19:21,796 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:19:21,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:19:21,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1283461158, now seen corresponding path program 1 times [2020-11-30 01:19:21,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:19:21,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778286841] [2020-11-30 01:19:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97a0467-5b7c-4d5d-bd6e-6557ca380bba/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 01:19:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:19:22,088 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 29 conjunts are in the unsatisfiable core [2020-11-30 01:19:22,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:19:22,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:19:22,170 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:19:23,165 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:19:23,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:19:32,152 WARN L193 SmtUtils]: Spent 8.49 s on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2020-11-30 01:19:37,064 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 01:19:37,065 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:19:41,936 WARN L193 SmtUtils]: Spent 4.23 s on a formula simplification that was a NOOP. DAG size: 19 [2020-11-30 01:19:42,477 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-11-30 01:19:48,620 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-11-30 01:19:49,339 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-11-30 01:19:50,142 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-30 01:19:51,007 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-11-30 01:19:51,959 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-30 01:19:51,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-11-30 01:19:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:19:52,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:19:58,967 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-30 01:20:07,598 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 29 [2020-11-30 01:20:24,542 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 38 [2020-11-30 01:20:42,885 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 40 [2020-11-30 01:20:42,889 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 01:20:42,889 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:20:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:20:43,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778286841] [2020-11-30 01:20:43,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:20:43,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7] total 22 [2020-11-30 01:20:43,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441507287] [2020-11-30 01:20:43,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-30 01:20:43,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:20:43,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-30 01:20:43,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=367, Unknown=3, NotChecked=0, Total=462 [2020-11-30 01:20:43,128 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 22 states. [2020-11-30 01:21:02,823 WARN L193 SmtUtils]: Spent 10.86 s on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-11-30 01:21:17,592 WARN L193 SmtUtils]: Spent 10.95 s on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2020-11-30 01:21:30,786 WARN L193 SmtUtils]: Spent 12.41 s on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2020-11-30 01:21:41,473 WARN L193 SmtUtils]: Spent 10.05 s on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-11-30 01:21:52,367 WARN L193 SmtUtils]: Spent 10.33 s on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-11-30 01:22:04,938 WARN L193 SmtUtils]: Spent 11.80 s on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-11-30 01:22:18,055 WARN L193 SmtUtils]: Spent 11.27 s on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-11-30 01:22:29,624 WARN L193 SmtUtils]: Spent 10.86 s on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-11-30 01:22:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:30,097 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-11-30 01:22:30,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-30 01:22:30,122 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2020-11-30 01:22:30,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:30,123 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:22:30,123 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:22:30,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 178.5s TimeCoverageRelationStatistics Valid=258, Invalid=731, Unknown=3, NotChecked=0, Total=992 [2020-11-30 01:22:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:22:30,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:22:30,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:22:30,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:22:30,125 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-30 01:22:30,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:30,125 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:22:30,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-30 01:22:30,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:22:30,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:22:30,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:22:30,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:22:30,470 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-11-30 01:23:09,017 WARN L193 SmtUtils]: Spent 38.50 s on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2020-11-30 01:23:49,398 WARN L193 SmtUtils]: Spent 40.38 s on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-11-30 01:23:49,418 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 46) no Hoare annotation was computed. [2020-11-30 01:23:49,418 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:23:49,419 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:23:49,419 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:23:49,419 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:23:49,419 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:23:49,419 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:23:49,420 INFO L270 CegarLoopResult]: At program point L12-1(line 37) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsle ULTIMATE.start_main_~A~0 (_ bv5 32))) (.cse1 (= (_ bv1 32) (bvsrem ULTIMATE.start_main_~A~0 (_ bv2 32)))) (.cse2 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse4 (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32))) (.cse7 (bvslt (let ((.cse33 (bvadd ((_ sign_extend 32) ULTIMATE.start_main_~R~0) (bvneg .cse5)))) (bvmul .cse33 .cse33)) ((_ sign_extend 32) ULTIMATE.start_main_~A~0))) (.cse17 (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32))) (.cse6 ((_ sign_extend 32) (_ bv2 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= .cse5 (bvadd ULTIMATE.start_main_~v~0 (bvmul .cse6 (_ bv18446744073709551615 64)))) .cse7 (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse14 ((_ sign_extend 32) ULTIMATE.start_main_~R~0)) (.cse16 ((_ sign_extend 32) ULTIMATE.start_main_~A~0))) (let ((.cse11 (bvneg .cse16)) (.cse12 (bvmul .cse14 .cse14))) (let ((.cse15 ((_ sign_extend 32) (_ bv1 32))) (.cse10 ((_ sign_extend 32) (_ bv2 32))) (.cse9 ((_ sign_extend 32) (_ bv0 32))) (.cse8 (bvadd .cse11 .cse12))) (and (bvsgt .cse8 .cse9) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg (bvadd ULTIMATE.start_main_~v~0 (bvmul .cse10 (_ bv18446744073709551615 64)))) .cse11 .cse12)) (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (bvslt (let ((.cse13 (bvadd .cse14 (bvneg .cse15)))) (bvmul .cse13 .cse13)) .cse16) (= ULTIMATE.start_main_~u~0 (bvadd .cse15 (bvmul .cse10 .cse14))) (not (= .cse9 .cse8)) (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32))))))) .cse17) (and .cse0 .cse1 (= ULTIMATE.start_main_~v~0 .cse5) .cse2 .cse3 (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse21 ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (.cse20 ((_ sign_extend 32) (_ bv1 32))) (.cse19 ((_ sign_extend 32) ULTIMATE.start_main_~R~0))) (and (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (bvslt (let ((.cse18 (bvadd .cse19 (bvneg .cse20)))) (bvmul .cse18 .cse18)) .cse21) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg .cse21) (bvmul .cse19 .cse19))) (= ULTIMATE.start_main_~u~0 (bvadd .cse20 (bvmul ((_ sign_extend 32) (_ bv2 32)) .cse19))) (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32))))) .cse4 .cse7 .cse17) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse7 (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse26 ((_ sign_extend 32) ULTIMATE.start_main_~R~0)) (.cse28 ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (.cse29 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse27 (bvneg .cse29)) (.cse31 (bvneg .cse28)) (.cse32 (bvmul .cse26 .cse26))) (let ((.cse30 ((_ sign_extend 32) (_ bv2 32))) (.cse22 (bvadd .cse31 .cse32)) (.cse24 (bvadd .cse31 .cse32 .cse27)) (.cse23 ((_ sign_extend 32) (_ bv0 32)))) (and (bvsgt .cse22 .cse23) (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (not (= .cse23 .cse24)) (bvslt (let ((.cse25 (bvadd .cse26 .cse27))) (bvmul .cse25 .cse25)) .cse28) (= ULTIMATE.start_main_~u~0 (bvadd .cse29 (bvmul .cse30 .cse26))) (= (bvadd .cse31 .cse32 (bvneg (bvadd .cse29 .cse30)) .cse27) ULTIMATE.start_main_~r~0) (not (= .cse23 .cse22)) (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32)) (bvsgt .cse24 .cse23)))))) .cse17 (= ULTIMATE.start_main_~v~0 (bvadd .cse5 (bvmul .cse6 (_ bv2 64)))))))) [2020-11-30 01:23:49,420 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:23:49,420 INFO L277 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: true [2020-11-30 01:23:49,420 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-11-30 01:23:49,420 INFO L274 CegarLoopResult]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2020-11-30 01:23:49,420 INFO L274 CegarLoopResult]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2020-11-30 01:23:49,420 INFO L274 CegarLoopResult]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L277 CegarLoopResult]: At program point L50(lines 19 51) the Hoare annotation is: true [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L9-6(line 9) no Hoare annotation was computed. [2020-11-30 01:23:49,421 INFO L274 CegarLoopResult]: For program point L39(lines 39 45) no Hoare annotation was computed. [2020-11-30 01:23:49,422 INFO L270 CegarLoopResult]: At program point L39-2(lines 35 46) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse3 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse6 ((_ sign_extend 32) (_ bv2 32))) (.cse1 (bvsle ULTIMATE.start_main_~A~0 (_ bv5 32))) (.cse0 (= (_ bv1 32) (bvsrem ULTIMATE.start_main_~A~0 (_ bv2 32)))) (.cse4 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse7 (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32))) (.cse8 (bvslt (let ((.cse34 (bvadd ((_ sign_extend 32) ULTIMATE.start_main_~R~0) (bvneg .cse5)))) (bvmul .cse34 .cse34)) ((_ sign_extend 32) ULTIMATE.start_main_~A~0))) (.cse18 (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= .cse5 (bvadd ULTIMATE.start_main_~v~0 (bvmul .cse6 (_ bv18446744073709551615 64)))) .cse7 .cse8 (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse15 ((_ sign_extend 32) ULTIMATE.start_main_~R~0)) (.cse17 ((_ sign_extend 32) ULTIMATE.start_main_~A~0))) (let ((.cse12 (bvneg .cse17)) (.cse13 (bvmul .cse15 .cse15))) (let ((.cse16 ((_ sign_extend 32) (_ bv1 32))) (.cse11 ((_ sign_extend 32) (_ bv2 32))) (.cse10 ((_ sign_extend 32) (_ bv0 32))) (.cse9 (bvadd .cse12 .cse13))) (and (bvsgt .cse9 .cse10) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg (bvadd ULTIMATE.start_main_~v~0 (bvmul .cse11 (_ bv18446744073709551615 64)))) .cse12 .cse13)) (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (bvslt (let ((.cse14 (bvadd .cse15 (bvneg .cse16)))) (bvmul .cse14 .cse14)) .cse17) (= ULTIMATE.start_main_~u~0 (bvadd .cse16 (bvmul .cse11 .cse15))) (not (= .cse10 .cse9)) (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32))))))) .cse18) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse7 .cse8 (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse23 ((_ sign_extend 32) ULTIMATE.start_main_~R~0)) (.cse25 ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (.cse26 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse24 (bvneg .cse26)) (.cse28 (bvneg .cse25)) (.cse29 (bvmul .cse23 .cse23))) (let ((.cse27 ((_ sign_extend 32) (_ bv2 32))) (.cse19 (bvadd .cse28 .cse29)) (.cse21 (bvadd .cse28 .cse29 .cse24)) (.cse20 ((_ sign_extend 32) (_ bv0 32)))) (and (bvsgt .cse19 .cse20) (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (not (= .cse20 .cse21)) (bvslt (let ((.cse22 (bvadd .cse23 .cse24))) (bvmul .cse22 .cse22)) .cse25) (= ULTIMATE.start_main_~u~0 (bvadd .cse26 (bvmul .cse27 .cse23))) (= (bvadd .cse28 .cse29 (bvneg (bvadd .cse26 .cse27)) .cse24) ULTIMATE.start_main_~r~0) (not (= .cse20 .cse19)) (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32)) (bvsgt .cse21 .cse20)))))) .cse18 (= ULTIMATE.start_main_~v~0 (bvadd .cse5 (bvmul .cse6 (_ bv2 64))))) (and .cse1 .cse0 (= ULTIMATE.start_main_~v~0 .cse5) .cse4 (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse33 ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (.cse32 ((_ sign_extend 32) (_ bv1 32))) (.cse31 ((_ sign_extend 32) ULTIMATE.start_main_~R~0))) (and (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (bvslt (let ((.cse30 (bvadd .cse31 (bvneg .cse32)))) (bvmul .cse30 .cse30)) .cse33) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg .cse33) (bvmul .cse31 .cse31))) (= ULTIMATE.start_main_~u~0 (bvadd .cse32 (bvmul ((_ sign_extend 32) (_ bv2 32)) .cse31))) (bvsle ULTIMATE.start_main_~R~0 (_ bv5 32))))) .cse7 .cse8 .cse18)))) [2020-11-30 01:23:49,427 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 01:23:49,437 INFO L168 Benchmark]: Toolchain (without parser) took 691781.07 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 54.4 MB in the beginning and 37.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:49,439 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:23:49,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.85 ms. Allocated memory is still 71.3 MB. Free memory was 54.2 MB in the beginning and 54.0 MB in the end (delta: 250.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:49,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 71.3 MB. Free memory was 54.0 MB in the beginning and 52.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:23:49,444 INFO L168 Benchmark]: Boogie Preprocessor took 26.33 ms. Allocated memory is still 71.3 MB. Free memory was 52.5 MB in the beginning and 51.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:49,448 INFO L168 Benchmark]: RCFGBuilder took 1030.42 ms. Allocated memory is still 71.3 MB. Free memory was 51.1 MB in the beginning and 37.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:49,450 INFO L168 Benchmark]: TraceAbstraction took 690322.82 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 36.7 MB in the beginning and 37.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:49,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.85 ms. Allocated memory is still 71.3 MB. Free memory was 54.2 MB in the beginning and 54.0 MB in the end (delta: 250.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 71.3 MB. Free memory was 54.0 MB in the beginning and 52.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.33 ms. Allocated memory is still 71.3 MB. Free memory was 52.5 MB in the beginning and 51.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1030.42 ms. Allocated memory is still 71.3 MB. Free memory was 51.1 MB in the beginning and 37.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 690322.82 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 36.7 MB in the beginning and 37.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: 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 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...