/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/for_infinite_loop_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:21:57,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:21:57,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:21:57,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 00:21:57,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 00:21:57,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 00:21:57,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 00:21:57,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 00:21:57,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 00:21:57,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 00:21:57,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 00:21:57,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 00:21:57,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:21:57,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:21:57,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:21:57,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:21:57,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:21:57,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:21:57,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:21:57,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:21:57,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:21:57,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:21:57,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:21:57,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:21:57,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 00:21:57,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 00:21:57,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 00:21:57,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 00:21:57,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 00:21:57,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 00:21:57,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 00:21:57,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 00:21:57,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 00:21:57,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 00:21:57,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 00:21:57,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 00:21:57,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 00:21:57,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 00:21:57,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:21:57,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:21:57,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:21:57,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-22 00:21:57,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:21:57,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:21:57,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:21:57,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:21:57,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:21:57,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:21:57,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:21:57,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:21:57,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:21:57,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:21:57,543 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:21:57,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:21:57,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:21:57,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:21:57,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:21:57,545 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:21:57,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:21:57,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:21:57,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:21:57,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:21:57,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:21:57,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:21:57,548 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:21:57,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:21:58,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:21:58,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:21:58,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:21:58,008 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:21:58,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_1.c [2021-02-22 00:21:58,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09eabcea1/40f9404fc78d46b6be8683f42e175d86/FLAGd9e9c885f [2021-02-22 00:21:58,800 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:21:58,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_1.c [2021-02-22 00:21:58,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09eabcea1/40f9404fc78d46b6be8683f42e175d86/FLAGd9e9c885f [2021-02-22 00:21:59,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09eabcea1/40f9404fc78d46b6be8683f42e175d86 [2021-02-22 00:21:59,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:21:59,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:21:59,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:21:59,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:21:59,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:21:59,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652147d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59, skipping insertion in model container [2021-02-22 00:21:59,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:21:59,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:21:59,359 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_1.c[418,431] [2021-02-22 00:21:59,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:21:59,392 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:21:59,411 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_1.c[418,431] [2021-02-22 00:21:59,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:21:59,442 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:21:59,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59 WrapperNode [2021-02-22 00:21:59,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:21:59,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:21:59,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:21:59,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:21:59,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... [2021-02-22 00:21:59,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:21:59,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:21:59,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:21:59,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:21:59,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-22 00:21:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 00:21:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 00:21:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:21:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 00:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 00:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:21:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:21:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:21:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:21:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:22:00,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:22:00,075 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 00:22:00,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:22:00 BoogieIcfgContainer [2021-02-22 00:22:00,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:22:00,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:22:00,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:22:00,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:22:00,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:21:59" (1/3) ... [2021-02-22 00:22:00,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2762124f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:22:00, skipping insertion in model container [2021-02-22 00:22:00,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:21:59" (2/3) ... [2021-02-22 00:22:00,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2762124f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:22:00, skipping insertion in model container [2021-02-22 00:22:00,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:22:00" (3/3) ... [2021-02-22 00:22:00,090 INFO L111 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1.c [2021-02-22 00:22:00,099 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:22:00,105 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:22:00,130 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:22:00,185 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:22:00,186 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:22:00,186 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:22:00,186 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:22:00,186 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:22:00,186 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:22:00,186 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:22:00,187 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:22:00,213 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2021-02-22 00:22:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-22 00:22:00,230 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:22:00,231 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] [2021-02-22 00:22:00,232 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:22:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:22:00,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1751332459, now seen corresponding path program 1 times [2021-02-22 00:22:00,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:22:00,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166181882] [2021-02-22 00:22:00,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:22:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:22:00,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:22:00,433 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Proofs are not supported at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getProof(Scriptor.java:166) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) 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:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 00:22:00,439 INFO L168 Benchmark]: Toolchain (without parser) took 1285.72 ms. Allocated memory is still 152.0 MB. Free memory was 128.7 MB in the beginning and 90.7 MB in the end (delta: 38.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:00,440 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 152.0 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:22:00,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.35 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 118.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:00,443 INFO L168 Benchmark]: Boogie Preprocessor took 65.17 ms. Allocated memory is still 152.0 MB. Free memory was 118.2 MB in the beginning and 116.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:00,444 INFO L168 Benchmark]: RCFGBuilder took 567.28 ms. Allocated memory is still 152.0 MB. Free memory was 116.6 MB in the beginning and 102.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:00,445 INFO L168 Benchmark]: TraceAbstraction took 356.36 ms. Allocated memory is still 152.0 MB. Free memory was 101.8 MB in the beginning and 90.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:00,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 152.0 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 277.35 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 118.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.17 ms. Allocated memory is still 152.0 MB. Free memory was 118.2 MB in the beginning and 116.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 567.28 ms. Allocated memory is still 152.0 MB. Free memory was 116.6 MB in the beginning and 102.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 356.36 ms. Allocated memory is still 152.0 MB. Free memory was 101.8 MB in the beginning and 90.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Proofs are not supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Proofs are not supported: de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getProof(Scriptor.java:166) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...