/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:10:24,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:10:24,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:10:24,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:10:24,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:10:24,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:10:24,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:10:24,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:10:24,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:10:24,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:10:24,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:10:24,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:10:24,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:10:24,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:10:24,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:10:24,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:10:24,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:10:24,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:10:24,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:10:24,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:10:24,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:10:24,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:10:24,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:10:24,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:10:24,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:10:24,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:10:24,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:10:24,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:10:24,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:10:24,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:10:24,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:10:24,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:10:24,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:10:24,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:10:24,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:10:24,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:10:24,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:10:24,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:10:24,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:10:24,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:10:24,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:10:24,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:10:24,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:10:24,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:10:24,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:10:24,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:10:24,627 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:10:24,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:10:24,629 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:10:24,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:10:24,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:10:24,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:10:24,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:10:24,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:10:24,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:10:24,630 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:10:24,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:10:24,630 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:10:24,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:10:24,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:10:24,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:10:24,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:10:24,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:10:24,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:10:24,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:10:24,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:10:24,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:10:24,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:10:24,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:10:24,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:10:24,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:10:24,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:10:25,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:10:25,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:10:25,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:10:25,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:10:25,116 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:10:25,117 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2020-09-24 16:10:25,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf4410b74/718252fe762d4485bcdad9daaf2f147c/FLAGc0c7e6703 [2020-09-24 16:10:25,702 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:10:25,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/terminator_02-1.c [2020-09-24 16:10:25,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf4410b74/718252fe762d4485bcdad9daaf2f147c/FLAGc0c7e6703 [2020-09-24 16:10:26,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf4410b74/718252fe762d4485bcdad9daaf2f147c [2020-09-24 16:10:26,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:10:26,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:10:26,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:26,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:10:26,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:10:26,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518dc62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26, skipping insertion in model container [2020-09-24 16:10:26,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:10:26,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:10:26,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:26,364 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:10:26,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:26,396 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:10:26,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26 WrapperNode [2020-09-24 16:10:26,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:26,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:10:26,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:10:26,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:10:26,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... [2020-09-24 16:10:26,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:10:26,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:10:26,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:10:26,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:10:26,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 16:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:10:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 16:10:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:10:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:10:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 16:10:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:10:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 16:10:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:10:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:10:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:10:26,802 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:10:26,803 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:10:26,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:26 BoogieIcfgContainer [2020-09-24 16:10:26,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:10:26,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:10:26,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:10:26,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:10:26,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:10:26" (1/3) ... [2020-09-24 16:10:26,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7091e774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:26, skipping insertion in model container [2020-09-24 16:10:26,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:26" (2/3) ... [2020-09-24 16:10:26,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7091e774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:26, skipping insertion in model container [2020-09-24 16:10:26,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:26" (3/3) ... [2020-09-24 16:10:26,820 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2020-09-24 16:10:26,834 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:10:26,845 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:10:26,873 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:10:26,906 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:10:26,906 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:10:26,907 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:10:26,907 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:10:26,907 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:10:26,908 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:10:26,908 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:10:26,908 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:10:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-24 16:10:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-24 16:10:26,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:26,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:26,944 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:26,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:26,950 INFO L82 PathProgramCache]: Analyzing trace with hash 372962344, now seen corresponding path program 1 times [2020-09-24 16:10:26,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:26,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109165936] [2020-09-24 16:10:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:10:27,076 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:10:27,077 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:10:27,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:10:27,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:10:27 BoogieIcfgContainer [2020-09-24 16:10:27,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:10:27,102 INFO L168 Benchmark]: Toolchain (without parser) took 1036.52 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 104.3 MB in the beginning and 157.6 MB in the end (delta: -53.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:27,103 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 16:10:27,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.36 ms. Allocated memory is still 141.0 MB. Free memory was 103.6 MB in the beginning and 94.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:27,106 INFO L168 Benchmark]: Boogie Preprocessor took 106.82 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.2 MB in the beginning and 183.9 MB in the end (delta: -89.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:27,107 INFO L168 Benchmark]: RCFGBuilder took 304.62 ms. Allocated memory is still 203.9 MB. Free memory was 183.5 MB in the beginning and 169.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:27,108 INFO L168 Benchmark]: TraceAbstraction took 286.11 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 157.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:27,112 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 326.36 ms. Allocated memory is still 141.0 MB. Free memory was 103.6 MB in the beginning and 94.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.82 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.2 MB in the beginning and 183.9 MB in the end (delta: -89.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 304.62 ms. Allocated memory is still 203.9 MB. Free memory was 183.5 MB in the beginning and 169.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 286.11 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 157.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100