/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=LOWLEXORDER --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/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:37:18,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:37:18,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:37:18,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:37:18,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:37:18,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:37:18,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:37:18,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:37:18,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:37:18,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:37:18,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:37:18,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:37:18,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:37:18,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:37:18,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:37:18,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:37:18,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:37:18,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:37:18,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:37:18,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:37:18,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:37:18,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:37:18,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:37:18,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:37:18,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:37:18,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:37:18,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:37:18,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:37:18,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:37:18,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:37:18,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:37:18,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:37:18,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:37:18,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:37:18,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:37:18,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:37:18,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:37:18,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:37:18,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:37:18,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:37:18,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:37:18,398 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 21:37:18,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:37:18,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:37:18,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:37:18,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:37:18,426 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:37:18,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:37:18,427 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:37:18,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:37:18,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:37:18,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:37:18,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:37:18,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:37:18,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:37:18,428 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:37:18,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:37:18,429 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:37:18,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:37:18,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:37:18,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:37:18,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:37:18,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:37:18,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:37:18,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:37:18,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:37:18,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:37:18,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:37:18,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:37:18,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:37:18,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:37:18,432 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:37:18,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:37:18,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:37:18,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:37:18,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:37:18,926 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:37:18,927 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-09-24 21:37:19,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62ed2ae44/ee919af309e546a0a9bfd64e9c0e7c80/FLAGb12c93b7a [2020-09-24 21:37:19,508 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:37:19,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test11.c [2020-09-24 21:37:19,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62ed2ae44/ee919af309e546a0a9bfd64e9c0e7c80/FLAGb12c93b7a [2020-09-24 21:37:19,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62ed2ae44/ee919af309e546a0a9bfd64e9c0e7c80 [2020-09-24 21:37:19,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:37:19,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:37:19,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:37:19,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:37:19,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:37:19,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:37:19" (1/1) ... [2020-09-24 21:37:19,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32333996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:19, skipping insertion in model container [2020-09-24 21:37:19,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:37:19" (1/1) ... [2020-09-24 21:37:19,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:37:19,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:37:20,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:37:20,231 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:37:20,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:37:20,270 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:37:20,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20 WrapperNode [2020-09-24 21:37:20,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:37:20,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:37:20,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:37:20,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:37:20,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:37:20,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:37:20,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:37:20,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:37:20,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (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 21:37:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:37:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:37:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-24 21:37:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:37:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:37:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:37:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 21:37:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-24 21:37:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:37:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:37:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:37:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:37:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:37:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:37:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:37:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:37:20,848 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:37:20,849 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:37:20,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:37:20 BoogieIcfgContainer [2020-09-24 21:37:20,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:37:20,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:37:20,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:37:20,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:37:20,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:37:19" (1/3) ... [2020-09-24 21:37:20,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1361af7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:37:20, skipping insertion in model container [2020-09-24 21:37:20,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (2/3) ... [2020-09-24 21:37:20,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1361af7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:37:20, skipping insertion in model container [2020-09-24 21:37:20,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:37:20" (3/3) ... [2020-09-24 21:37:20,864 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2020-09-24 21:37:20,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:37:20,887 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:37:20,907 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:37:20,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:37:20,936 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:37:20,936 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:37:20,936 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:37:20,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:37:20,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:37:20,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:37:20,936 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:37:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-24 21:37:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 21:37:20,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:20,969 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] [2020-09-24 21:37:20,970 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:20,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1040052544, now seen corresponding path program 1 times [2020-09-24 21:37:20,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:20,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572702185] [2020-09-24 21:37:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:21,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:21,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:21,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:21,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 21:37:21,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:37:21,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 725 [2020-09-24 21:37:21,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:37:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:37:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:37:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:37:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:22,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:22,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:22,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:37:22,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:22,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:37:22,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:22,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:22,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:22,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:22,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-24 21:37:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:22,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:22,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:22,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:37:22,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:22,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:37:22,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:37:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:22,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:37:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:22,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:37:22,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572702185] [2020-09-24 21:37:22,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:22,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:37:22,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674765957] [2020-09-24 21:37:22,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:37:22,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:22,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:37:22,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:37:22,132 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states. [2020-09-24 21:37:22,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:22,404 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2020-09-24 21:37:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:37:22,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-24 21:37:22,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:22,425 INFO L225 Difference]: With dead ends: 93 [2020-09-24 21:37:22,425 INFO L226 Difference]: Without dead ends: 59 [2020-09-24 21:37:22,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:37:22,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-24 21:37:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-24 21:37:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 21:37:22,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-09-24 21:37:22,505 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 43 [2020-09-24 21:37:22,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:22,506 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-09-24 21:37:22,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:37:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-09-24 21:37:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-24 21:37:22,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:22,509 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] [2020-09-24 21:37:22,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:37:22,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:22,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:22,511 INFO L82 PathProgramCache]: Analyzing trace with hash -981249608, now seen corresponding path program 1 times [2020-09-24 21:37:22,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:22,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131066155] [2020-09-24 21:37:22,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:22,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:22,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:37:22,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:37:22,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-24 21:37:22,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:37:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-24 21:37:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:37:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:37:23,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:37:23,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:23,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-24 21:37:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:37:23,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:37:23,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:23,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:23,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:37:23,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131066155] [2020-09-24 21:37:23,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:23,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:37:23,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183794559] [2020-09-24 21:37:23,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:37:23,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:23,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:37:23,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:37:23,087 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-09-24 21:37:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:23,348 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2020-09-24 21:37:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:37:23,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-09-24 21:37:23,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:23,351 INFO L225 Difference]: With dead ends: 75 [2020-09-24 21:37:23,351 INFO L226 Difference]: Without dead ends: 59 [2020-09-24 21:37:23,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:37:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-24 21:37:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-24 21:37:23,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 21:37:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-09-24 21:37:23,362 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 46 [2020-09-24 21:37:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:23,363 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-09-24 21:37:23,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:37:23,363 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-09-24 21:37:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-24 21:37:23,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:23,365 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] [2020-09-24 21:37:23,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:37:23,366 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:23,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:23,366 INFO L82 PathProgramCache]: Analyzing trace with hash 176769226, now seen corresponding path program 1 times [2020-09-24 21:37:23,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:23,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95723200] [2020-09-24 21:37:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:37:23,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:37:23,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-24 21:37:23,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:37:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-24 21:37:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:37:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:37:23,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:37:23,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:23,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-24 21:37:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:37:23,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:37:24,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:24,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:24,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:24,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:24,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:37:24,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95723200] [2020-09-24 21:37:24,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:24,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:37:24,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397032324] [2020-09-24 21:37:24,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:37:24,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:24,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:37:24,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:37:24,010 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 8 states. [2020-09-24 21:37:24,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:24,272 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-09-24 21:37:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:37:24,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-09-24 21:37:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:24,274 INFO L225 Difference]: With dead ends: 61 [2020-09-24 21:37:24,274 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 21:37:24,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:37:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 21:37:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 21:37:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 21:37:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-09-24 21:37:24,283 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49 [2020-09-24 21:37:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:24,284 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-09-24 21:37:24,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:37:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-09-24 21:37:24,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 21:37:24,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:24,286 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] [2020-09-24 21:37:24,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:37:24,286 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:24,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:24,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1988535102, now seen corresponding path program 1 times [2020-09-24 21:37:24,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:24,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373029838] [2020-09-24 21:37:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:24,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:24,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:24,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 21:37:24,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 21:37:24,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:37:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:37:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 21:37:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:24,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:24,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:24,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:37:24,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:37:24,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:24,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-24 21:37:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:24,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:24,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:24,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:37:24,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:37:24,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:24,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:37:24,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:37:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:37:24,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373029838] [2020-09-24 21:37:24,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:24,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:37:24,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235908702] [2020-09-24 21:37:24,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:37:24,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:24,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:37:24,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:37:24,603 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 6 states. [2020-09-24 21:37:24,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:24,763 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-09-24 21:37:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:37:24,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 21:37:24,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:24,764 INFO L225 Difference]: With dead ends: 55 [2020-09-24 21:37:24,765 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:37:24,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:37:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:37:24,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:37:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:37:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:37:24,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-09-24 21:37:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:24,767 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:37:24,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:37:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:37:24,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:37:24,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:37:24,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:37:24,905 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 21:37:24,905 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 21:37:24,905 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 5) no Hoare annotation was computed. [2020-09-24 21:37:24,906 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:37:24,906 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 21:37:24,906 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 21:37:24,906 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-09-24 21:37:24,906 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-09-24 21:37:24,907 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:37:24,907 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 7 10) no Hoare annotation was computed. [2020-09-24 21:37:24,907 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 21:37:24,907 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-09-24 21:37:24,907 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-24 21:37:24,907 INFO L268 CegarLoopResult]: For program point L9-3(line 9) no Hoare annotation was computed. [2020-09-24 21:37:24,907 INFO L268 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-09-24 21:37:24,908 INFO L268 CegarLoopResult]: For program point L9-5(line 9) no Hoare annotation was computed. [2020-09-24 21:37:24,908 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed. [2020-09-24 21:37:24,908 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:37:24,908 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:37:24,908 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:37:24,908 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:37:24,908 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 32) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,909 INFO L268 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,910 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 21:37:24,910 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,910 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 21:37:24,910 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 21:37:24,910 INFO L268 CegarLoopResult]: For program point L19-6(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,911 INFO L268 CegarLoopResult]: For program point L19-7(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,911 INFO L268 CegarLoopResult]: For program point L19-8(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,911 INFO L268 CegarLoopResult]: For program point L19-9(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,911 INFO L268 CegarLoopResult]: For program point L19-10(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,911 INFO L268 CegarLoopResult]: For program point L19-11(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,912 INFO L268 CegarLoopResult]: For program point L19-12(line 19) no Hoare annotation was computed. [2020-09-24 21:37:24,913 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 21:37:24,913 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-09-24 21:37:24,913 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 21:37:24,913 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 21:37:24,914 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 21:37:24,914 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 21:37:24,914 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-24 21:37:24,914 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false [2020-09-24 21:37:24,914 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-24 21:37:24,915 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 21:37:24,918 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 21:37:24,918 INFO L268 CegarLoopResult]: For program point L17-3(line 17) no Hoare annotation was computed. [2020-09-24 21:37:24,919 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,919 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 32) no Hoare annotation was computed. [2020-09-24 21:37:24,919 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,920 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,920 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,920 INFO L268 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,920 INFO L268 CegarLoopResult]: For program point L13-5(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,920 INFO L268 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-09-24 21:37:24,920 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2020-09-24 21:37:24,921 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-24 21:37:24,921 INFO L268 CegarLoopResult]: For program point L18(lines 18 19) no Hoare annotation was computed. [2020-09-24 21:37:24,921 INFO L268 CegarLoopResult]: For program point L18-1(lines 18 19) no Hoare annotation was computed. [2020-09-24 21:37:24,921 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 21) no Hoare annotation was computed. [2020-09-24 21:37:24,923 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 21:37:24,924 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 19) no Hoare annotation was computed. [2020-09-24 21:37:24,924 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 21:37:24,924 INFO L268 CegarLoopResult]: For program point L18-5(lines 18 19) no Hoare annotation was computed. [2020-09-24 21:37:24,924 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 21:37:24,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:37:24 BoogieIcfgContainer [2020-09-24 21:37:24,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:37:24,946 INFO L168 Benchmark]: Toolchain (without parser) took 5073.63 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 103.7 MB in the beginning and 199.2 MB in the end (delta: -95.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:24,948 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:37:24,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.55 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 92.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:24,953 INFO L168 Benchmark]: Boogie Preprocessor took 126.70 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 92.6 MB in the beginning and 181.5 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:24,962 INFO L168 Benchmark]: RCFGBuilder took 457.05 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 161.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:24,963 INFO L168 Benchmark]: TraceAbstraction took 4085.82 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 160.6 MB in the beginning and 199.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:24,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 394.55 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 92.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.70 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 92.6 MB in the beginning and 181.5 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.05 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 161.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4085.82 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 160.6 MB in the beginning and 199.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 166 SDslu, 399 SDs, 0 SdLazy, 383 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 47 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 26661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! Received shutdown request...