/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:16:47,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:16:47,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:16:47,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:16:47,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:16:47,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:16:47,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:16:47,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:16:47,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:16:47,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:16:47,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:16:47,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:16:47,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:16:47,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:16:47,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:16:47,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:16:47,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:16:47,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:16:47,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:16:47,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:16:47,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:16:47,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:16:47,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:16:47,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:16:47,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:16:47,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:16:47,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:16:47,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:16:47,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:16:47,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:16:47,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:16:47,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:16:47,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:16:47,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:16:47,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:16:47,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:16:47,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:16:47,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:16:47,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:16:47,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:16:47,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:16:47,635 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 18:16:47,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:16:47,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:16:47,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:16:47,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:16:47,687 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:16:47,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:16:47,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:16:47,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:16:47,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:16:47,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:16:47,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:16:47,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:16:47,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:16:47,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:16:47,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:16:47,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:16:47,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:16:47,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:16:47,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:16:47,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:16:47,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:16:47,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:16:47,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:16:47,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:16:47,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:16:47,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:16:47,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:16:47,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:16:47,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:16:47,694 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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:16:48,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:16:48,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:16:48,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:16:48,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:16:48,217 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:16:48,218 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_15-1.c [2020-09-24 18:16:48,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8896f6f71/b360dba1da904962a3953b604b7b3e72/FLAGe45107a28 [2020-09-24 18:16:48,864 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:16:48,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_15-1.c [2020-09-24 18:16:48,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8896f6f71/b360dba1da904962a3953b604b7b3e72/FLAGe45107a28 [2020-09-24 18:16:49,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8896f6f71/b360dba1da904962a3953b604b7b3e72 [2020-09-24 18:16:49,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:16:49,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:16:49,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:16:49,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:16:49,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:16:49,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49, skipping insertion in model container [2020-09-24 18:16:49,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:16:49,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:16:49,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:16:49,550 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:16:49,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:16:49,602 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:16:49,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49 WrapperNode [2020-09-24 18:16:49,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:16:49,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:16:49,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:16:49,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:16:49,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (1/1) ... [2020-09-24 18:16:49,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:16:49,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:16:49,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:16:49,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:16:49,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (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 18:16:49,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:16:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:16:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:16:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:16:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:16:50,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:16:50,359 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 18:16:50,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:16:50 BoogieIcfgContainer [2020-09-24 18:16:50,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:16:50,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:16:50,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:16:50,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:16:50,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:16:49" (1/3) ... [2020-09-24 18:16:50,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5379b757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:16:50, skipping insertion in model container [2020-09-24 18:16:50,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:49" (2/3) ... [2020-09-24 18:16:50,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5379b757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:16:50, skipping insertion in model container [2020-09-24 18:16:50,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:16:50" (3/3) ... [2020-09-24 18:16:50,377 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2020-09-24 18:16:50,390 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:16:50,401 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:16:50,424 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:16:50,459 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:16:50,460 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:16:50,460 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:16:50,460 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:16:50,460 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:16:50,461 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:16:50,461 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:16:50,461 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:16:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2020-09-24 18:16:50,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-24 18:16:50,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:50,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:50,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:50,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:50,514 INFO L82 PathProgramCache]: Analyzing trace with hash 984329519, now seen corresponding path program 1 times [2020-09-24 18:16:50,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:50,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711713266] [2020-09-24 18:16:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:16:50,721 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:16:50,723 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:16:50,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:16:50,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:16:50 BoogieIcfgContainer [2020-09-24 18:16:50,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:16:50,767 INFO L168 Benchmark]: Toolchain (without parser) took 1554.55 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 103.6 MB in the beginning and 131.3 MB in the end (delta: -27.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:50,768 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:16:50,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.37 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:50,771 INFO L168 Benchmark]: Boogie Preprocessor took 140.89 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 91.5 MB in the beginning and 179.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:50,771 INFO L168 Benchmark]: RCFGBuilder took 621.92 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 147.0 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:50,772 INFO L168 Benchmark]: TraceAbstraction took 396.13 ms. Allocated memory is still 201.9 MB. Free memory was 146.4 MB in the beginning and 131.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:50,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 385.37 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.89 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 91.5 MB in the beginning and 179.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 621.92 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 147.0 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 396.13 ms. Allocated memory is still 201.9 MB. Free memory was 146.4 MB in the beginning and 131.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 231]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L48] int p15 = __VERIFIER_nondet_int(); [L49] int lk15; [L52] int cond; [L54] COND TRUE 1 [L55] cond = __VERIFIER_nondet_int() [L56] COND FALSE !(cond == 0) [L59] lk1 = 0 [L61] lk2 = 0 [L63] lk3 = 0 [L65] lk4 = 0 [L67] lk5 = 0 [L69] lk6 = 0 [L71] lk7 = 0 [L73] lk8 = 0 [L75] lk9 = 0 [L77] lk10 = 0 [L79] lk11 = 0 [L81] lk12 = 0 [L83] lk13 = 0 [L85] lk14 = 0 [L87] lk15 = 0 [L91] COND FALSE !(p1 != 0) [L95] COND FALSE !(p2 != 0) [L99] COND FALSE !(p3 != 0) [L103] COND FALSE !(p4 != 0) [L107] COND FALSE !(p5 != 0) [L111] COND FALSE !(p6 != 0) [L115] COND FALSE !(p7 != 0) [L119] COND FALSE !(p8 != 0) [L123] COND FALSE !(p9 != 0) [L127] COND FALSE !(p10 != 0) [L131] COND FALSE !(p11 != 0) [L135] COND FALSE !(p12 != 0) [L139] COND FALSE !(p13 != 0) [L143] COND FALSE !(p14 != 0) [L147] COND FALSE !(p15 != 0) [L153] COND FALSE !(p1 != 0) [L158] COND FALSE !(p2 != 0) [L231] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=168occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 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 proved your program to be incorrect! Received shutdown request...