/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/loop-lit/ddlm2013.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:51:45,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:51:45,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:51:45,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:51:45,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:51:45,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:51:45,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:51:45,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:51:45,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:51:45,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:51:45,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:51:45,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:51:45,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:51:45,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:51:45,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:51:45,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:51:45,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:51:45,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:51:45,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:51:45,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:51:45,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:51:45,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:51:45,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:51:45,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:51:45,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:51:45,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:51:45,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:51:45,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:51:45,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:51:45,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:51:45,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:51:45,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:51:45,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:51:45,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:51:45,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:51:45,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:51:45,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:51:45,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:51:45,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:51:45,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:51:45,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:51:45,312 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 21:51:45,357 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:51:45,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:51:45,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:51:45,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:51:45,360 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:51:45,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:51:45,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:51:45,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:51:45,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:51:45,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:51:45,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:51:45,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:51:45,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:51:45,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:51:45,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:51:45,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:51:45,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:51:45,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:51:45,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:51:45,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:51:45,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:51:45,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:51:45,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:51:45,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:51:45,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:51:45,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:51:45,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:51:45,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:51:45,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:51:45,366 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 21:51:45,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:51:45,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:51:45,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:51:45,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:51:45,838 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:51:45,839 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013.i [2020-09-24 21:51:45,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a8bb5770/8eba08c088ab43a7827fbb015999a60c/FLAG3c2fc4c5e [2020-09-24 21:51:46,501 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:51:46,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/ddlm2013.i [2020-09-24 21:51:46,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a8bb5770/8eba08c088ab43a7827fbb015999a60c/FLAG3c2fc4c5e [2020-09-24 21:51:46,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a8bb5770/8eba08c088ab43a7827fbb015999a60c [2020-09-24 21:51:46,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:51:46,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:51:46,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:51:46,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:51:46,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:51:46,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:51:46" (1/1) ... [2020-09-24 21:51:46,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6251f5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:46, skipping insertion in model container [2020-09-24 21:51:46,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:51:46" (1/1) ... [2020-09-24 21:51:46,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:51:46,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:51:47,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:51:47,130 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:51:47,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:51:47,164 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:51:47,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47 WrapperNode [2020-09-24 21:51:47,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:51:47,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:51:47,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:51:47,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:51:47,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (1/1) ... [2020-09-24 21:51:47,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:51:47,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:51:47,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:51:47,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:51:47,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (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 21:51:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:51:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:51:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:51:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:51:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:51:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:51:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:51:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:51:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:51:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:51:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:51:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:51:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:51:47,640 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:51:47,641 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:51:47,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:51:47 BoogieIcfgContainer [2020-09-24 21:51:47,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:51:47,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:51:47,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:51:47,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:51:47,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:51:46" (1/3) ... [2020-09-24 21:51:47,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9382a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:51:47, skipping insertion in model container [2020-09-24 21:51:47,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:51:47" (2/3) ... [2020-09-24 21:51:47,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9382a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:51:47, skipping insertion in model container [2020-09-24 21:51:47,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:51:47" (3/3) ... [2020-09-24 21:51:47,658 INFO L109 eAbstractionObserver]: Analyzing ICFG ddlm2013.i [2020-09-24 21:51:47,675 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:51:47,689 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:51:47,716 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:51:47,749 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:51:47,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:51:47,750 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:51:47,750 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:51:47,750 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:51:47,750 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:51:47,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:51:47,751 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:51:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-24 21:51:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 21:51:47,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:47,789 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] [2020-09-24 21:51:47,790 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:47,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1686675663, now seen corresponding path program 1 times [2020-09-24 21:51:47,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:47,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060471179] [2020-09-24 21:51:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:47,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:48,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:48,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:48,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 21:51:48,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:51:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-24 21:51:48,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:51:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:51:48,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:51:48,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:51:48,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:48,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:48,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:51:48,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:51:48,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:48,542 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 21:51:48,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060471179] [2020-09-24 21:51:48,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:48,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:51:48,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752845552] [2020-09-24 21:51:48,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:51:48,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:48,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:51:48,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:51:48,576 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 6 states. [2020-09-24 21:51:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:48,708 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2020-09-24 21:51:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:51:48,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-09-24 21:51:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:48,722 INFO L225 Difference]: With dead ends: 72 [2020-09-24 21:51:48,723 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 21:51:48,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 21:51:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-09-24 21:51:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-24 21:51:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-09-24 21:51:48,774 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 22 [2020-09-24 21:51:48,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:48,775 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-09-24 21:51:48,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:51:48,775 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-09-24 21:51:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 21:51:48,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:48,777 INFO L422 BasicCegarLoop]: trace histogram [2, 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 21:51:48,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:51:48,778 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:48,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:48,778 INFO L82 PathProgramCache]: Analyzing trace with hash -579098768, now seen corresponding path program 1 times [2020-09-24 21:51:48,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:48,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745729041] [2020-09-24 21:51:48,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:48,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:49,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:49,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:51:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-24 21:51:49,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:51:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:51:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:51:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:49,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:51:49,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:51:49,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:51:49,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745729041] [2020-09-24 21:51:49,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:51:49,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 21:51:49,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359971962] [2020-09-24 21:51:49,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:51:49,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:49,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:51:49,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:51:49,592 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 11 states. [2020-09-24 21:51:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:49,881 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2020-09-24 21:51:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:51:49,882 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-09-24 21:51:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:49,884 INFO L225 Difference]: With dead ends: 67 [2020-09-24 21:51:49,884 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 21:51:49,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:51:49,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 21:51:49,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2020-09-24 21:51:49,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 21:51:49,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2020-09-24 21:51:49,894 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 34 [2020-09-24 21:51:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:49,895 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2020-09-24 21:51:49,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:51:49,895 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2020-09-24 21:51:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 21:51:49,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:49,897 INFO L422 BasicCegarLoop]: trace histogram [2, 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 21:51:49,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:51:49,898 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:49,898 INFO L82 PathProgramCache]: Analyzing trace with hash -44019760, now seen corresponding path program 1 times [2020-09-24 21:51:49,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:49,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582076639] [2020-09-24 21:51:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:49,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:50,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:50,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:51:50,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:51:50,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 21:51:50,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:51:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:51:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:51:50,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:50,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:50,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:50,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:50,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:51:50,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:50,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:51:50,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:50,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:50,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:50,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:50,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:51:50,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582076639] [2020-09-24 21:51:50,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:50,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:51:50,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056871548] [2020-09-24 21:51:50,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:51:50,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:50,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:51:50,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:51:50,094 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 3 states. [2020-09-24 21:51:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:50,103 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2020-09-24 21:51:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:51:50,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-09-24 21:51:50,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:50,105 INFO L225 Difference]: With dead ends: 74 [2020-09-24 21:51:50,106 INFO L226 Difference]: Without dead ends: 51 [2020-09-24 21:51:50,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:51:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-24 21:51:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-24 21:51:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-24 21:51:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-09-24 21:51:50,113 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 34 [2020-09-24 21:51:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:50,114 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-09-24 21:51:50,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:51:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-09-24 21:51:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 21:51:50,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:50,116 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 21:51:50,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:51:50,117 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:50,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:50,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1122436602, now seen corresponding path program 2 times [2020-09-24 21:51:50,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:50,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92354626] [2020-09-24 21:51:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:50,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:50,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 21:51:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-09-24 21:51:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:51:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:51:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 21:51:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:50,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:50,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:50,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:51:50,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:50,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:50,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:51:51,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92354626] [2020-09-24 21:51:51,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:51:51,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 21:51:51,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417028249] [2020-09-24 21:51:51,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 21:51:51,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:51,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 21:51:51,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:51:51,012 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 15 states. [2020-09-24 21:51:51,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:51,640 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2020-09-24 21:51:51,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:51:51,641 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 44 [2020-09-24 21:51:51,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:51,642 INFO L225 Difference]: With dead ends: 81 [2020-09-24 21:51:51,642 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 21:51:51,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:51:51,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 21:51:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 51. [2020-09-24 21:51:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-24 21:51:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-09-24 21:51:51,649 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 44 [2020-09-24 21:51:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:51,650 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-09-24 21:51:51,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 21:51:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-09-24 21:51:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-24 21:51:51,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:51,652 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 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 21:51:51,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:51:51,652 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:51,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:51,653 INFO L82 PathProgramCache]: Analyzing trace with hash 937303643, now seen corresponding path program 1 times [2020-09-24 21:51:51,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:51,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782793602] [2020-09-24 21:51:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:51,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:51,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:51,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:51,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:51:51,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:51:51,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-24 21:51:51,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:51,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:51:51,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 21:51:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:51:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:52,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:52,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:52,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:51:52,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:52,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:52,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:52,140 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:51:52,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782793602] [2020-09-24 21:51:52,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:52,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:51:52,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952861233] [2020-09-24 21:51:52,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:51:52,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:52,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:51:52,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:51:52,143 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 4 states. [2020-09-24 21:51:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:52,164 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2020-09-24 21:51:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:51:52,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-09-24 21:51:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:52,166 INFO L225 Difference]: With dead ends: 59 [2020-09-24 21:51:52,166 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:51:52,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:51:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:51:52,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:51:52,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:51:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:51:52,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2020-09-24 21:51:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:52,168 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:51:52,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:51:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:51:52,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:51:52,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:51:52,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:51:52,280 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 21:51:52,280 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:51:52,280 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:51:52,281 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:51:52,281 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:51:52,281 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:51:52,281 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:51:52,281 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:51:52,281 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 21:51:52,281 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 38) no Hoare annotation was computed. [2020-09-24 21:51:52,282 INFO L268 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L28-2(lines 13 38) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L24(lines 24 33) no Hoare annotation was computed. [2020-09-24 21:51:52,283 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 21:51:52,284 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-09-24 21:51:52,284 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 21:51:52,284 INFO L268 CegarLoopResult]: For program point L24-4(lines 13 38) no Hoare annotation was computed. [2020-09-24 21:51:52,284 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 21:51:52,284 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 21:51:52,285 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 21:51:52,285 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-24 21:51:52,285 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-24 21:51:52,285 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 21:51:52,285 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 38) no Hoare annotation was computed. [2020-09-24 21:51:52,285 INFO L268 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-09-24 21:51:52,286 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 38) the Hoare annotation is: true [2020-09-24 21:51:52,286 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 21:51:52,286 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 21:51:52,286 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 21:51:52,286 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 21:51:52,286 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 21:51:52,288 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 21:51:52,288 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse3 (div main_~a~0 4294967296)) (.cse2 (div main_~b~0 4294967296))) (or (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ (* 4294967296 .cse2) main_~a~0))) (and (<= main_~b~0 main_~a~0) (< .cse0 (+ .cse1 main_~b~0 1)) (<= (+ .cse1 main_~b~0) .cse0))) (and (<= 0 main_~a~0) (<= main_~a~0 0) (= (+ (* .cse3 4294967296) main_~b~0) (+ (* .cse2 4294967296) main_~a~0))))) [2020-09-24 21:51:52,289 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 21:51:52,289 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 21:51:52,290 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 21:51:52,290 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 21:51:52,291 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 21:51:52,291 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 21:51:52,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:51:52 BoogieIcfgContainer [2020-09-24 21:51:52,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:51:52,307 INFO L168 Benchmark]: Toolchain (without parser) took 5453.42 ms. Allocated memory was 146.3 MB in the beginning and 246.9 MB in the end (delta: 100.7 MB). Free memory was 100.9 MB in the beginning and 139.8 MB in the end (delta: -38.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:51:52,309 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:51:52,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.71 ms. Allocated memory is still 146.3 MB. Free memory was 100.3 MB in the beginning and 90.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:51:52,315 INFO L168 Benchmark]: Boogie Preprocessor took 124.32 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 90.8 MB in the beginning and 182.2 MB in the end (delta: -91.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:51:52,319 INFO L168 Benchmark]: RCFGBuilder took 357.32 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 167.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:51:52,321 INFO L168 Benchmark]: TraceAbstraction took 4653.42 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 167.0 MB in the beginning and 139.8 MB in the end (delta: 27.2 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2020-09-24 21:51:52,324 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.71 ms. Allocated memory is still 146.3 MB. Free memory was 100.3 MB in the beginning and 90.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.32 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 90.8 MB in the beginning and 182.2 MB in the end (delta: -91.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 357.32 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 167.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4653.42 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 167.0 MB in the beginning and 139.8 MB in the end (delta: 27.2 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 183 SDtfs, 152 SDslu, 709 SDs, 0 SdLazy, 319 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, 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, 5 MinimizatonAttempts, 31 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 63 HoareAnnotationTreeSize, 12 FomulaSimplifications, 23 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 55698 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 15/31 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...