/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench/geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:18:44,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:18:44,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:18:44,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:18:44,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:18:44,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:18:44,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:18:44,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:18:44,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:18:44,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:18:44,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:18:44,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:18:44,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:18:44,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:18:44,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:18:44,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:18:44,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:18:44,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:18:44,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:18:44,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:18:44,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:18:44,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:18:44,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:18:44,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:18:44,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 07:18:44,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 07:18:44,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 07:18:44,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 07:18:44,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 07:18:44,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 07:18:44,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 07:18:44,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 07:18:44,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 07:18:44,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:18:44,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:18:44,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:18:44,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 07:18:44,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:18:44,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:18:44,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:18:44,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:18:44,259 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:18:44,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:18:44,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:18:44,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:18:44,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:18:44,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:18:44,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:18:44,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:18:44,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:18:44,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:18:44,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:18:44,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:18:44,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:18:44,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:18:44,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:18:44,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:18:44,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:18:44,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:18:44,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:18:44,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:18:44,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:18:44,265 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:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:18:44,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:18:44,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:18:44,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:18:44,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:18:44,744 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:18:44,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/geo1-u.c [2020-12-23 07:18:44,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/477222ec3/c7aa5f83fc2c40faabc3010afa82dad1/FLAG8bf9dcaf7 [2020-12-23 07:18:45,445 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:18:45,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1-u.c [2020-12-23 07:18:45,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/477222ec3/c7aa5f83fc2c40faabc3010afa82dad1/FLAG8bf9dcaf7 [2020-12-23 07:18:45,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/477222ec3/c7aa5f83fc2c40faabc3010afa82dad1 [2020-12-23 07:18:45,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:18:45,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:18:45,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:18:45,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:18:45,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:18:45,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:18:45" (1/1) ... [2020-12-23 07:18:45,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2361e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:45, skipping insertion in model container [2020-12-23 07:18:45,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:18:45" (1/1) ... [2020-12-23 07:18:45,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:18:45,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 07:18:45,982 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1-u.c[555,568] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 07:18:45,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:18:46,009 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 07:18:46,021 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1-u.c[555,568] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 07:18:46,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:18:46,040 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:18:46,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46 WrapperNode [2020-12-23 07:18:46,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:18:46,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:18:46,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:18:46,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:18:46,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:18:46,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:18:46,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:18:46,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:18:46,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... [2020-12-23 07:18:46,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:18:46,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:18:46,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:18:46,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:18:46,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/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 [2020-12-23 07:18:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:18:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:18:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:18:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:18:46,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:18:46,503 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-23 07:18:46,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:46 BoogieIcfgContainer [2020-12-23 07:18:46,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:18:46,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:18:46,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:18:46,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:18:46,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:18:45" (1/3) ... [2020-12-23 07:18:46,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fe6713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:18:46, skipping insertion in model container [2020-12-23 07:18:46,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:46" (2/3) ... [2020-12-23 07:18:46,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fe6713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:18:46, skipping insertion in model container [2020-12-23 07:18:46,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:46" (3/3) ... [2020-12-23 07:18:46,534 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u.c [2020-12-23 07:18:46,542 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:18:46,548 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 07:18:46,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 07:18:46,600 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:18:46,600 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:18:46,601 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:18:46,601 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:18:46,601 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:18:46,601 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:18:46,601 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:18:46,601 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:18:46,621 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-23 07:18:46,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 07:18:46,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:18:46,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 07:18:46,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:18:46,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:18:46,641 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-12-23 07:18:46,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:18:46,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015986500] [2020-12-23 07:18:46,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:18:46,817 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:18:46,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849565011] [2020-12-23 07:18:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/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 [2020-12-23 07:18:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:18:46,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 07:18:46,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:18:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:18:46,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015986500] [2020-12-23 07:18:46,987 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 07:18:46,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849565011] [2020-12-23 07:18:46,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:18:46,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 07:18:46,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463053047] [2020-12-23 07:18:46,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 07:18:46,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:18:47,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 07:18:47,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 07:18:47,013 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2020-12-23 07:18:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:18:47,092 INFO L93 Difference]: Finished difference Result 33 states and 47 transitions. [2020-12-23 07:18:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 07:18:47,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-23 07:18:47,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:18:47,104 INFO L225 Difference]: With dead ends: 33 [2020-12-23 07:18:47,104 INFO L226 Difference]: Without dead ends: 16 [2020-12-23 07:18:47,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 07:18:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-23 07:18:47,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-12-23 07:18:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-23 07:18:47,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-23 07:18:47,145 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2020-12-23 07:18:47,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:18:47,146 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-23 07:18:47,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 07:18:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-23 07:18:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 07:18:47,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:18:47,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:18:47,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-23 07:18:47,361 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:18:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:18:47,362 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2020-12-23 07:18:47,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:18:47,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249770942] [2020-12-23 07:18:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:18:47,380 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:18:47,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72889309] [2020-12-23 07:18:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/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 [2020-12-23 07:18:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 07:18:47,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 07:18:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 07:18:47,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 07:18:47,496 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 07:18:47,496 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 07:18:47,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 07:18:47,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:18:47 BoogieIcfgContainer [2020-12-23 07:18:47,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:18:47,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:18:47,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:18:47,738 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:18:47,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:46" (3/4) ... [2020-12-23 07:18:47,742 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 07:18:47,813 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench/geo1-u.c-witness.graphml [2020-12-23 07:18:47,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:18:47,816 INFO L168 Benchmark]: Toolchain (without parser) took 2014.05 ms. Allocated memory is still 155.2 MB. Free memory was 130.3 MB in the beginning and 99.3 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,817 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:18:47,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.99 ms. Allocated memory is still 155.2 MB. Free memory was 130.1 MB in the beginning and 120.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 155.2 MB. Free memory was 120.4 MB in the beginning and 119.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,819 INFO L168 Benchmark]: Boogie Preprocessor took 23.81 ms. Allocated memory is still 155.2 MB. Free memory was 119.0 MB in the beginning and 118.0 MB in the end (delta: 960.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,820 INFO L168 Benchmark]: RCFGBuilder took 400.77 ms. Allocated memory is still 155.2 MB. Free memory was 117.9 MB in the beginning and 106.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,821 INFO L168 Benchmark]: TraceAbstraction took 1230.56 ms. Allocated memory is still 155.2 MB. Free memory was 105.5 MB in the beginning and 101.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,821 INFO L168 Benchmark]: Witness Printer took 75.85 ms. Allocated memory is still 155.2 MB. Free memory was 100.9 MB in the beginning and 99.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:47,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 238.99 ms. Allocated memory is still 155.2 MB. Free memory was 130.1 MB in the beginning and 120.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 155.2 MB. Free memory was 120.4 MB in the beginning and 119.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.81 ms. Allocated memory is still 155.2 MB. Free memory was 119.0 MB in the beginning and 118.0 MB in the end (delta: 960.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.77 ms. Allocated memory is still 155.2 MB. Free memory was 117.9 MB in the beginning and 106.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1230.56 ms. Allocated memory is still 155.2 MB. Free memory was 105.5 MB in the beginning and 101.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Witness Printer took 75.85 ms. Allocated memory is still 155.2 MB. Free memory was 100.9 MB in the beginning and 99.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] k = __VERIFIER_nondet_uint() [L28] x = 1 [L29] y = z [L30] c = 1 [L32] COND TRUE 1 [L16] COND FALSE !(!(cond)) [L35] COND TRUE !(c < k) [L44] x = x * (z - 1) [L16] COND TRUE !(cond) [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 20 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 4 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...