/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/freire2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:18:37,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:18:37,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:18:38,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:18:38,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:18:38,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:18:38,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:18:38,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:18:38,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:18:38,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:18:38,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:18:38,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:18:38,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:18:38,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:18:38,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:18:38,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:18:38,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:18:38,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:18:38,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:18:38,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:18:38,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:18:38,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:18:38,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:18:38,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:18:38,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 07:18:38,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 07:18:38,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 07:18:38,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 07:18:38,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 07:18:38,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 07:18:38,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 07:18:38,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 07:18:38,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 07:18:38,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 07:18:38,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 07:18:38,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 07:18:38,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 07:18:38,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 07:18:38,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:18:38,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:18:38,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:18:38,113 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 07:18:38,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:18:38,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:18:38,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:18:38,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:18:38,143 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:18:38,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:18:38,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:18:38,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:18:38,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:18:38,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:18:38,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:18:38,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:18:38,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:18:38,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:18:38,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:18:38,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:18:38,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:18:38,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:18:38,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:18:38,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:18:38,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:18:38,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:18:38,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:18:38,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:18:38,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:18:38,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:18:38,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:18:38,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:18:38,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:18:38,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:18:38,589 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:18:38,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire2.c [2020-12-23 07:18:38,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ccfb391d9/b4d6ca41c13c48af826c5d6cb6db62fd/FLAGf2dcc01e0 [2020-12-23 07:18:39,373 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:18:39,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire2.c [2020-12-23 07:18:39,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ccfb391d9/b4d6ca41c13c48af826c5d6cb6db62fd/FLAGf2dcc01e0 [2020-12-23 07:18:39,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ccfb391d9/b4d6ca41c13c48af826c5d6cb6db62fd [2020-12-23 07:18:39,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:18:39,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:18:39,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:18:39,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:18:39,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:18:39,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:18:39" (1/1) ... [2020-12-23 07:18:39,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b9ee05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:39, skipping insertion in model container [2020-12-23 07:18:39,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:18:39" (1/1) ... [2020-12-23 07:18:39,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:18:39,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 07:18:39,901 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/freire2.c[709,722] left hand side expression in assignment: lhs: VariableLHS[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] [2020-12-23 07:18:39,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:18:39,960 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 07:18:39,975 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/freire2.c[709,722] left hand side expression in assignment: lhs: VariableLHS[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] [2020-12-23 07:18:39,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:18:40,005 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:18:40,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40 WrapperNode [2020-12-23 07:18:40,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:18:40,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:18:40,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:18:40,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:18:40,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:18:40,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:18:40,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:18:40,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:18:40,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (1/1) ... [2020-12-23 07:18:40,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:18:40,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:18:40,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:18:40,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:18:40,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (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 07:18:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:18:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:18:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:18:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:18:40,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:18:40,461 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-23 07:18:40,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:40 BoogieIcfgContainer [2020-12-23 07:18:40,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:18:40,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:18:40,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:18:40,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:18:40,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:18:39" (1/3) ... [2020-12-23 07:18:40,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3a69d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:18:40, skipping insertion in model container [2020-12-23 07:18:40,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:18:40" (2/3) ... [2020-12-23 07:18:40,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3a69d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:18:40, skipping insertion in model container [2020-12-23 07:18:40,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:40" (3/3) ... [2020-12-23 07:18:40,475 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2.c [2020-12-23 07:18:40,531 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:18:40,543 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-23 07:18:40,576 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 07:18:40,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:18:40,626 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:18:40,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:18:40,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:18:40,628 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:18:40,629 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:18:40,629 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:18:40,629 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:18:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-12-23 07:18:40,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 07:18:40,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:18:40,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 07:18:40,660 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:18:40,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:18:40,668 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-12-23 07:18:40,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:18:40,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744135769] [2020-12-23 07:18:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:18:40,822 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 07:18:40,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258968096] [2020-12-23 07:18:40,824 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 07:18:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 07:18:40,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 07:18:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 07:18:40,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 07:18:40,945 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 07:18:40,946 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 07:18:41,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-23 07:18:41,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:18:41 BoogieIcfgContainer [2020-12-23 07:18:41,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:18:41,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:18:41,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:18:41,187 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:18:41,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:18:40" (3/4) ... [2020-12-23 07:18:41,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 07:18:41,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:18:41,194 INFO L168 Benchmark]: Toolchain (without parser) took 1485.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:41,195 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.3 MB in the end (delta: 435.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:18:41,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.52 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:41,198 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.29 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 113.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:41,199 INFO L168 Benchmark]: Boogie Preprocessor took 29.09 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 112.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:41,199 INFO L168 Benchmark]: RCFGBuilder took 382.93 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 98.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-23 07:18:41,200 INFO L168 Benchmark]: TraceAbstraction took 720.35 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 115.5 MB in the end (delta: -17.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:18:41,201 INFO L168 Benchmark]: Witness Printer took 5.23 ms. Allocated memory is still 151.0 MB. Free memory is still 115.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:18:41,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.3 MB in the end (delta: 435.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 292.52 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.29 ms. Allocated memory is still 151.0 MB. Free memory was 115.1 MB in the beginning and 113.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.09 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 112.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 382.93 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 98.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 720.35 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 115.5 MB in the end (delta: -17.7 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 5.23 ms. Allocated memory is still 151.0 MB. Free memory is still 115.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 33. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] x = a [L29] s = 3.25 [L30] r = 1 [L32] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...