/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 04:53:43,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 04:53:43,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 04:53:43,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 04:53:43,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 04:53:43,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 04:53:43,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 04:53:43,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 04:53:43,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 04:53:43,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 04:53:43,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 04:53:43,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 04:53:43,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 04:53:43,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 04:53:43,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 04:53:43,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 04:53:43,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 04:53:43,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 04:53:43,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 04:53:43,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 04:53:43,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 04:53:43,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 04:53:43,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 04:53:43,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 04:53:43,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 04:53:43,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 04:53:43,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 04:53:43,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 04:53:43,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 04:53:43,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 04:53:43,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 04:53:43,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 04:53:43,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 04:53:43,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 04:53:43,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 04:53:43,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 04:53:43,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 04:53:43,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 04:53:43,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 04:53:43,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 04:53:43,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 04:53:43,342 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 [2020-08-28 04:53:43,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 04:53:43,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 04:53:43,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 04:53:43,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 04:53:43,372 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 04:53:43,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 04:53:43,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 04:53:43,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 04:53:43,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 04:53:43,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 04:53:43,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 04:53:43,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 04:53:43,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 04:53:43,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 04:53:43,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 04:53:43,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 04:53:43,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 04:53:43,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 04:53:43,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 04:53:43,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 04:53:43,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 04:53:43,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 04:53:43,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 04:53:43,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 04:53:43,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 04:53:43,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 04:53:43,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 04:53:43,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 04:53:43,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 04:53:43,377 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-08-28 04:53:43,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 04:53:43,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 04:53:43,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 04:53:43,876 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 04:53:43,876 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 04:53:43,878 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-1.i [2020-08-28 04:53:43,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/414264210/e35d086dfa8d4ea0a3599a11a472cce7/FLAG00bd64d1b [2020-08-28 04:53:44,528 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 04:53:44,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/nested_structure-1.i [2020-08-28 04:53:44,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/414264210/e35d086dfa8d4ea0a3599a11a472cce7/FLAG00bd64d1b [2020-08-28 04:53:44,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/414264210/e35d086dfa8d4ea0a3599a11a472cce7 [2020-08-28 04:53:44,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 04:53:44,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 04:53:44,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 04:53:44,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 04:53:44,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 04:53:44,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 04:53:44" (1/1) ... [2020-08-28 04:53:44,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3116520e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:44, skipping insertion in model container [2020-08-28 04:53:44,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 04:53:44" (1/1) ... [2020-08-28 04:53:44,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 04:53:44,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 04:53:45,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 04:53:45,273 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 04:53:45,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 04:53:45,314 INFO L208 MainTranslator]: Completed translation [2020-08-28 04:53:45,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45 WrapperNode [2020-08-28 04:53:45,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 04:53:45,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 04:53:45,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 04:53:45,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 04:53:45,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (1/1) ... [2020-08-28 04:53:45,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 04:53:45,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 04:53:45,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 04:53:45,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 04:53:45,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (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 [2020-08-28 04:53:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 04:53:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 04:53:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-28 04:53:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 04:53:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 04:53:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-28 04:53:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 04:53:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-28 04:53:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-28 04:53:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-28 04:53:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-28 04:53:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-28 04:53:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-28 04:53:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 04:53:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 04:53:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 04:53:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-28 04:53:45,837 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 04:53:45,837 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 04:53:45,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 04:53:45 BoogieIcfgContainer [2020-08-28 04:53:45,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 04:53:45,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 04:53:45,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 04:53:45,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 04:53:45,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 04:53:44" (1/3) ... [2020-08-28 04:53:45,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3ed2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 04:53:45, skipping insertion in model container [2020-08-28 04:53:45,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:53:45" (2/3) ... [2020-08-28 04:53:45,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3ed2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 04:53:45, skipping insertion in model container [2020-08-28 04:53:45,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 04:53:45" (3/3) ... [2020-08-28 04:53:45,852 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure-1.i [2020-08-28 04:53:45,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 04:53:45,874 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 04:53:45,895 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 04:53:45,922 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 04:53:45,923 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 04:53:45,923 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 04:53:45,923 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 04:53:45,923 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 04:53:45,923 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 04:53:45,923 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 04:53:45,923 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 04:53:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-28 04:53:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-08-28 04:53:45,949 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 04:53:45,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 04:53:45,950 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 04:53:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 04:53:45,957 INFO L82 PathProgramCache]: Analyzing trace with hash -642389624, now seen corresponding path program 1 times [2020-08-28 04:53:45,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 04:53:45,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965715398] [2020-08-28 04:53:45,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 04:53:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 04:53:46,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 04:53:46,167 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Proof production must be enabled (you can do this via setOption). at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:170) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-28 04:53:46,176 INFO L168 Benchmark]: Toolchain (without parser) took 1268.99 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 103.9 MB in the beginning and 152.5 MB in the end (delta: -48.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2020-08-28 04:53:46,177 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 04:53:46,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.21 ms. Allocated memory is still 147.3 MB. Free memory was 103.7 MB in the beginning and 93.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-28 04:53:46,180 INFO L168 Benchmark]: Boogie Preprocessor took 133.69 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 93.2 MB in the beginning and 180.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-08-28 04:53:46,181 INFO L168 Benchmark]: RCFGBuilder took 392.81 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 165.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-08-28 04:53:46,183 INFO L168 Benchmark]: TraceAbstraction took 328.01 ms. Allocated memory is still 202.9 MB. Free memory was 165.2 MB in the beginning and 152.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-08-28 04:53:46,188 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 407.21 ms. Allocated memory is still 147.3 MB. Free memory was 103.7 MB in the beginning and 93.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.69 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 93.2 MB in the beginning and 180.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 392.81 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 165.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 328.01 ms. Allocated memory is still 202.9 MB. Free memory was 165.2 MB in the beginning and 152.5 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Proof production must be enabled (you can do this via setOption). de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Proof production must be enabled (you can do this via setOption).: de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...