/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:33:42,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:33:42,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:33:42,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:33:42,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:33:42,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:33:42,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:33:42,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:33:42,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:33:42,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:33:42,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:33:42,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:33:42,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:33:42,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:33:42,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:33:42,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:33:42,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:33:42,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:33:42,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:33:42,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:33:42,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:33:42,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:33:42,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:33:42,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:33:42,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:33:42,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:33:42,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:33:42,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:33:42,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:33:42,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:33:42,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:33:42,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:33:42,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:33:42,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:33:42,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:33:42,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:33:42,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:33:42,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:33:42,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:33:42,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:33:42,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:33:42,336 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 19:33:42,376 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:33:42,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:33:42,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:33:42,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:33:42,378 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:33:42,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:33:42,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:33:42,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:33:42,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:33:42,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:33:42,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:33:42,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:33:42,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:33:42,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:33:42,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:33:42,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:33:42,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:33:42,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:33:42,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:33:42,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:33:42,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:33:42,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:42,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:33:42,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:33:42,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:33:42,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:33:42,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:33:42,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:33:42,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:33:42,386 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:33:42,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:33:42,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:33:42,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:33:42,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:33:42,945 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:33:42,947 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-09-24 19:33:43,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5d677239/8c37e306bf2b44878af734580b5a6135/FLAG703fe267a [2020-09-24 19:33:43,608 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:33:43,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/lu.cmp.c [2020-09-24 19:33:43,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5d677239/8c37e306bf2b44878af734580b5a6135/FLAG703fe267a [2020-09-24 19:33:43,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5d677239/8c37e306bf2b44878af734580b5a6135 [2020-09-24 19:33:43,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:33:43,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:33:43,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:43,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:33:43,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:33:43,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:43" (1/1) ... [2020-09-24 19:33:43,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d48d131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:43, skipping insertion in model container [2020-09-24 19:33:43,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:43" (1/1) ... [2020-09-24 19:33:43,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:33:44,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:33:44,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:44,331 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:33:44,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:44,488 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:33:44,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44 WrapperNode [2020-09-24 19:33:44,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:44,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:33:44,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:33:44,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:33:44,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (1/1) ... [2020-09-24 19:33:44,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:33:44,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:33:44,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:33:44,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:33:44,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (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 19:33:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:33:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:33:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:33:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-09-24 19:33:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:33:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-09-24 19:33:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:33:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:33:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-09-24 19:33:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-09-24 19:33:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:33:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-24 19:33:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-24 19:33:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:33:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:33:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:33:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:33:45,250 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:33:45,251 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-09-24 19:33:45,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:45 BoogieIcfgContainer [2020-09-24 19:33:45,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:33:45,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:33:45,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:33:45,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:33:45,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:33:43" (1/3) ... [2020-09-24 19:33:45,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c6163d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:45, skipping insertion in model container [2020-09-24 19:33:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:44" (2/3) ... [2020-09-24 19:33:45,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c6163d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:45, skipping insertion in model container [2020-09-24 19:33:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:45" (3/3) ... [2020-09-24 19:33:45,270 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-09-24 19:33:45,283 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:33:45,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:33:45,320 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:33:45,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:33:45,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:33:45,357 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:33:45,358 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:33:45,358 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:33:45,358 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:33:45,358 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:33:45,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:33:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-09-24 19:33:45,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 19:33:45,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:45,401 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] [2020-09-24 19:33:45,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:45,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:45,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1445504148, now seen corresponding path program 1 times [2020-09-24 19:33:45,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:45,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464133101] [2020-09-24 19:33:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:46,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:46,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:46,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 19:33:46,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:33:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:33:46,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:33:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:33:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 19:33:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:33:46,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:46,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:46,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:46,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:46,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:33:46,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:46,825 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 19:33:46,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464133101] [2020-09-24 19:33:46,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:46,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:33:46,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924065010] [2020-09-24 19:33:46,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:33:46,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:46,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:33:46,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:33:46,860 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 5 states. [2020-09-24 19:33:47,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:47,531 INFO L93 Difference]: Finished difference Result 367 states and 432 transitions. [2020-09-24 19:33:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:33:47,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 19:33:47,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:47,545 INFO L225 Difference]: With dead ends: 367 [2020-09-24 19:33:47,546 INFO L226 Difference]: Without dead ends: 64 [2020-09-24 19:33:47,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:33:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-24 19:33:47,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2020-09-24 19:33:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-24 19:33:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-09-24 19:33:47,617 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 30 [2020-09-24 19:33:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:47,618 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-09-24 19:33:47,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:33:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-09-24 19:33:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 19:33:47,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:47,620 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] [2020-09-24 19:33:47,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:33:47,621 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:47,622 INFO L82 PathProgramCache]: Analyzing trace with hash -905808642, now seen corresponding path program 1 times [2020-09-24 19:33:47,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:47,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879852530] [2020-09-24 19:33:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:47,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:47,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:48,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:48,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:48,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:48,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:48,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:33:48,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:33:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-09-24 19:33:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:33:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 19:33:48,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:33:48,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:48,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:48,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:48,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:48,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:48,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:33:48,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:48,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879852530] [2020-09-24 19:33:48,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:48,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:33:48,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763867418] [2020-09-24 19:33:48,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:33:48,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:48,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:33:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:33:48,802 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 5 states. [2020-09-24 19:33:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:49,091 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2020-09-24 19:33:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:33:49,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-24 19:33:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:49,095 INFO L225 Difference]: With dead ends: 108 [2020-09-24 19:33:49,096 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 19:33:49,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:33:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 19:33:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2020-09-24 19:33:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 19:33:49,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-09-24 19:33:49,114 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2020-09-24 19:33:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:49,115 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-09-24 19:33:49,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:33:49,115 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-09-24 19:33:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 19:33:49,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:49,117 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] [2020-09-24 19:33:49,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:33:49,118 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:49,119 INFO L82 PathProgramCache]: Analyzing trace with hash -361483259, now seen corresponding path program 1 times [2020-09-24 19:33:49,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:49,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757487169] [2020-09-24 19:33:49,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:49,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:49,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:50,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:50,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:50,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:33:50,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:33:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:33:50,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:33:50,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 19:33:50,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:33:50,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:50,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:50,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:50,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:50,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:50,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:33:50,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:33:50,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757487169] [2020-09-24 19:33:50,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:50,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:33:50,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811226960] [2020-09-24 19:33:50,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:33:50,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:50,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:33:50,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:33:50,307 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2020-09-24 19:33:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:50,621 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-09-24 19:33:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:33:50,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-09-24 19:33:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:50,623 INFO L225 Difference]: With dead ends: 77 [2020-09-24 19:33:50,623 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 19:33:50,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:33:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 19:33:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2020-09-24 19:33:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 19:33:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-24 19:33:50,634 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 42 [2020-09-24 19:33:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:50,635 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-24 19:33:50,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:33:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-24 19:33:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 19:33:50,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:50,637 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:50,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:33:50,638 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:50,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1960696442, now seen corresponding path program 1 times [2020-09-24 19:33:50,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:50,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930229059] [2020-09-24 19:33:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:50,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:50,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:51,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 19:33:51,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:33:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:33:51,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:33:51,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:33:51,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:33:51,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:51,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:51,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:51,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:33:51,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-24 19:33:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:51,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:51,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:51,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:51,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:51,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:33:51,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:33:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:33:51,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930229059] [2020-09-24 19:33:51,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:33:51,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:33:51,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940866755] [2020-09-24 19:33:51,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:33:51,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:51,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:33:51,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:33:51,834 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 7 states. [2020-09-24 19:33:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:52,137 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2020-09-24 19:33:52,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:33:52,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-24 19:33:52,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:52,141 INFO L225 Difference]: With dead ends: 146 [2020-09-24 19:33:52,142 INFO L226 Difference]: Without dead ends: 114 [2020-09-24 19:33:52,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:33:52,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-24 19:33:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-09-24 19:33:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 19:33:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2020-09-24 19:33:52,154 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 64 [2020-09-24 19:33:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:52,155 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2020-09-24 19:33:52,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:33:52,155 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2020-09-24 19:33:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 19:33:52,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:52,157 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:52,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:33:52,157 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:52,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:52,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1491522468, now seen corresponding path program 2 times [2020-09-24 19:33:52,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:52,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600865779] [2020-09-24 19:33:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:53,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:53,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:53,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 19:33:53,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:33:53,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:33:53,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:33:53,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:33:53,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:33:53,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:53,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:53,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:53,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:53,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:33:53,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:53,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-24 19:33:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:53,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:53,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:53,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:53,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:53,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:33:53,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:53,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:53,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:33:53,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:53,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 19:33:53,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600865779] [2020-09-24 19:33:53,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:33:53,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:33:53,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004565977] [2020-09-24 19:33:53,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:33:53,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:53,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:33:53,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:33:53,380 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 9 states. [2020-09-24 19:33:53,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:53,797 INFO L93 Difference]: Finished difference Result 182 states and 196 transitions. [2020-09-24 19:33:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:33:53,798 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-24 19:33:53,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:53,800 INFO L225 Difference]: With dead ends: 182 [2020-09-24 19:33:53,800 INFO L226 Difference]: Without dead ends: 138 [2020-09-24 19:33:53,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:33:53,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-24 19:33:53,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 118. [2020-09-24 19:33:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-09-24 19:33:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2020-09-24 19:33:53,814 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 82 [2020-09-24 19:33:53,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:53,814 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2020-09-24 19:33:53,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:33:53,815 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2020-09-24 19:33:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 19:33:53,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:53,817 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:53,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:33:53,818 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:53,818 INFO L82 PathProgramCache]: Analyzing trace with hash 2108507974, now seen corresponding path program 3 times [2020-09-24 19:33:53,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:53,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633754357] [2020-09-24 19:33:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:54,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:54,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:54,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:54,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 19:33:54,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:33:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:33:54,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:33:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 19:33:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 19:33:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:55,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:55,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:55,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:55,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:55,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:55,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:33:55,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:55,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-24 19:33:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:55,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:55,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:55,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:55,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:33:55,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:55,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:33:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:33:55,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 73 proven. 44 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-24 19:33:55,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633754357] [2020-09-24 19:33:55,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:33:55,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:33:55,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485300431] [2020-09-24 19:33:55,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:33:55,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:55,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:33:55,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:33:55,099 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand 9 states. [2020-09-24 19:33:55,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:55,578 INFO L93 Difference]: Finished difference Result 244 states and 260 transitions. [2020-09-24 19:33:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:33:55,579 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-09-24 19:33:55,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:55,582 INFO L225 Difference]: With dead ends: 244 [2020-09-24 19:33:55,582 INFO L226 Difference]: Without dead ends: 193 [2020-09-24 19:33:55,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:33:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-24 19:33:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 137. [2020-09-24 19:33:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-24 19:33:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2020-09-24 19:33:55,604 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 100 [2020-09-24 19:33:55,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:55,605 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2020-09-24 19:33:55,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:33:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2020-09-24 19:33:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-24 19:33:55,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:55,611 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:55,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:33:55,612 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:55,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:55,616 INFO L82 PathProgramCache]: Analyzing trace with hash 2044891819, now seen corresponding path program 4 times [2020-09-24 19:33:55,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:55,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100187639] [2020-09-24 19:33:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:55,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:55,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:55,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:56,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:56,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 19:33:56,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:33:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:33:56,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:33:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:33:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 19:33:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:56,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:56,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:56,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:56,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:56,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:33:56,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:56,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-24 19:33:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:56,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:56,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:56,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:56,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:33:56,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:33:56,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:56,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-24 19:33:56,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100187639] [2020-09-24 19:33:56,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:33:56,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:33:56,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441840353] [2020-09-24 19:33:56,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:33:56,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:56,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:33:56,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:33:56,814 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand 11 states. [2020-09-24 19:33:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:57,250 INFO L93 Difference]: Finished difference Result 256 states and 273 transitions. [2020-09-24 19:33:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:33:57,250 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-09-24 19:33:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:57,252 INFO L225 Difference]: With dead ends: 256 [2020-09-24 19:33:57,252 INFO L226 Difference]: Without dead ends: 181 [2020-09-24 19:33:57,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:33:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-24 19:33:57,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2020-09-24 19:33:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-24 19:33:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 170 transitions. [2020-09-24 19:33:57,274 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 170 transitions. Word has length 103 [2020-09-24 19:33:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:57,275 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 170 transitions. [2020-09-24 19:33:57,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:33:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 170 transitions. [2020-09-24 19:33:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 19:33:57,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:57,280 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:57,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:33:57,280 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:57,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:57,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2090362593, now seen corresponding path program 5 times [2020-09-24 19:33:57,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:57,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705006393] [2020-09-24 19:33:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:57,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:57,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:58,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:58,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-24 19:33:58,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:33:58,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:33:58,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:58,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:33:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:33:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 19:33:58,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:58,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:58,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:58,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:58,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:33:58,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:33:58,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 19:33:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:58,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:58,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:58,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:58,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:33:58,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:33:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:58,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 161 proven. 58 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-09-24 19:33:58,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705006393] [2020-09-24 19:33:58,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:33:58,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 19:33:58,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32086067] [2020-09-24 19:33:58,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 19:33:58,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:58,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 19:33:58,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:33:58,544 INFO L87 Difference]: Start difference. First operand 161 states and 170 transitions. Second operand 13 states. [2020-09-24 19:33:59,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:59,076 INFO L93 Difference]: Finished difference Result 292 states and 312 transitions. [2020-09-24 19:33:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:33:59,076 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-09-24 19:33:59,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:59,079 INFO L225 Difference]: With dead ends: 292 [2020-09-24 19:33:59,079 INFO L226 Difference]: Without dead ends: 205 [2020-09-24 19:33:59,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=492, Unknown=0, NotChecked=0, Total=702 [2020-09-24 19:33:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-24 19:33:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 185. [2020-09-24 19:33:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-24 19:33:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2020-09-24 19:33:59,092 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 121 [2020-09-24 19:33:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:59,092 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2020-09-24 19:33:59,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 19:33:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2020-09-24 19:33:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-24 19:33:59,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:59,096 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 8, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:59,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:33:59,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:59,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:59,097 INFO L82 PathProgramCache]: Analyzing trace with hash -679447253, now seen corresponding path program 6 times [2020-09-24 19:33:59,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:59,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429332462] [2020-09-24 19:33:59,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:59,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:59,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:59,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:00,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:00,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-24 19:34:00,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:34:00,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-09-24 19:34:00,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 19:34:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:34:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:34:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:00,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:00,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:00,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:34:00,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:34:00,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:00,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 19:34:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:00,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:00,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:00,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:00,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:34:00,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:00,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 244 proven. 95 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-09-24 19:34:00,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429332462] [2020-09-24 19:34:00,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:34:00,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 19:34:00,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472719029] [2020-09-24 19:34:00,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 19:34:00,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:00,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 19:34:00,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:34:00,495 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 15 states. [2020-09-24 19:34:01,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:01,138 INFO L93 Difference]: Finished difference Result 308 states and 329 transitions. [2020-09-24 19:34:01,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 19:34:01,139 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 139 [2020-09-24 19:34:01,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:01,140 INFO L225 Difference]: With dead ends: 308 [2020-09-24 19:34:01,140 INFO L226 Difference]: Without dead ends: 209 [2020-09-24 19:34:01,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=754, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 19:34:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-24 19:34:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-24 19:34:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-24 19:34:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 222 transitions. [2020-09-24 19:34:01,152 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 222 transitions. Word has length 139 [2020-09-24 19:34:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:01,153 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 222 transitions. [2020-09-24 19:34:01,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 19:34:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 222 transitions. [2020-09-24 19:34:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 19:34:01,155 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:01,156 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 10, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:34:01,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:34:01,156 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:01,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1930934625, now seen corresponding path program 7 times [2020-09-24 19:34:01,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:01,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782823234] [2020-09-24 19:34:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:01,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:01,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:01,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:01,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:01,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:02,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:02,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-24 19:34:02,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:34:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:34:02,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:34:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 19:34:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 19:34:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:34:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:02,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:02,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:02,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:34:02,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:34:02,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:02,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:02,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:34:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:02,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:02,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:02,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:34:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:02,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 2 proven. 343 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-09-24 19:34:02,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782823234] [2020-09-24 19:34:02,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:34:02,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:34:02,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625989760] [2020-09-24 19:34:02,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:34:02,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:02,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:34:02,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:34:02,411 INFO L87 Difference]: Start difference. First operand 209 states and 222 transitions. Second operand 7 states. [2020-09-24 19:34:02,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:02,649 INFO L93 Difference]: Finished difference Result 209 states and 222 transitions. [2020-09-24 19:34:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:34:02,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-09-24 19:34:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:02,650 INFO L225 Difference]: With dead ends: 209 [2020-09-24 19:34:02,650 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:34:02,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:34:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:34:02,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:34:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:34:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:34:02,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-09-24 19:34:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:02,652 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:34:02,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:34:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:34:02,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:34:02,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:34:02,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:34:02,943 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,943 INFO L271 CegarLoopResult]: At program point L118-1(line 118) the Hoare annotation is: true [2020-09-24 19:34:02,943 INFO L268 CegarLoopResult]: For program point L118-2(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,944 INFO L268 CegarLoopResult]: For program point L118-3(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,944 INFO L268 CegarLoopResult]: For program point L118-4(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,944 INFO L268 CegarLoopResult]: For program point L118-5(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,944 INFO L268 CegarLoopResult]: For program point L118-6(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,944 INFO L268 CegarLoopResult]: For program point L118-7(line 118) no Hoare annotation was computed. [2020-09-24 19:34:02,944 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 19:34:02,945 INFO L268 CegarLoopResult]: For program point L135-1(line 135) no Hoare annotation was computed. [2020-09-24 19:34:02,945 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-09-24 19:34:02,945 INFO L268 CegarLoopResult]: For program point L119-3(lines 119 126) no Hoare annotation was computed. [2020-09-24 19:34:02,945 INFO L268 CegarLoopResult]: For program point L119-4(line 119) no Hoare annotation was computed. [2020-09-24 19:34:02,945 INFO L268 CegarLoopResult]: For program point L119-5(line 119) no Hoare annotation was computed. [2020-09-24 19:34:02,945 INFO L271 CegarLoopResult]: At program point L119-6(lines 119 126) the Hoare annotation is: true [2020-09-24 19:34:02,945 INFO L268 CegarLoopResult]: For program point L119-7(lines 119 126) no Hoare annotation was computed. [2020-09-24 19:34:02,946 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 19:34:02,946 INFO L268 CegarLoopResult]: For program point L136-3(line 136) no Hoare annotation was computed. [2020-09-24 19:34:02,946 INFO L268 CegarLoopResult]: For program point L136-4(line 136) no Hoare annotation was computed. [2020-09-24 19:34:02,946 INFO L271 CegarLoopResult]: At program point L136-5(lines 136 142) the Hoare annotation is: true [2020-09-24 19:34:02,946 INFO L268 CegarLoopResult]: For program point L136-6(lines 136 142) no Hoare annotation was computed. [2020-09-24 19:34:02,946 INFO L268 CegarLoopResult]: For program point ludcmpEXIT(lines 109 153) no Hoare annotation was computed. [2020-09-24 19:34:02,946 INFO L264 CegarLoopResult]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-24 19:34:02,947 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-24 19:34:02,947 INFO L268 CegarLoopResult]: For program point L121-1(line 121) no Hoare annotation was computed. [2020-09-24 19:34:02,947 INFO L268 CegarLoopResult]: For program point L121-2(line 121) no Hoare annotation was computed. [2020-09-24 19:34:02,947 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-24 19:34:02,947 INFO L268 CegarLoopResult]: For program point L138-1(line 138) no Hoare annotation was computed. [2020-09-24 19:34:02,947 INFO L268 CegarLoopResult]: For program point L138-2(line 138) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L122(lines 122 124) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L122-1(lines 122 124) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L139-3(lines 139 140) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L139-4(line 139) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L139-5(line 139) no Hoare annotation was computed. [2020-09-24 19:34:02,948 INFO L271 CegarLoopResult]: At program point L139-6(lines 139 140) the Hoare annotation is: true [2020-09-24 19:34:02,948 INFO L268 CegarLoopResult]: For program point L139-7(lines 139 140) no Hoare annotation was computed. [2020-09-24 19:34:02,949 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-09-24 19:34:02,949 INFO L268 CegarLoopResult]: For program point L123-3(lines 123 124) no Hoare annotation was computed. [2020-09-24 19:34:02,949 INFO L268 CegarLoopResult]: For program point L123-4(line 123) no Hoare annotation was computed. [2020-09-24 19:34:02,949 INFO L268 CegarLoopResult]: For program point L123-5(line 123) no Hoare annotation was computed. [2020-09-24 19:34:02,949 INFO L271 CegarLoopResult]: At program point L123-6(lines 123 124) the Hoare annotation is: true [2020-09-24 19:34:02,949 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L140-1(line 140) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L140-2(line 140) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L140-3(line 140) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L140-4(line 140) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L124-1(line 124) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L124-2(line 124) no Hoare annotation was computed. [2020-09-24 19:34:02,950 INFO L268 CegarLoopResult]: For program point L124-3(line 124) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L124-4(line 124) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L141(lines 136 142) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L125-1(line 125) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L109(lines 109 153) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L109-1(lines 109 153) no Hoare annotation was computed. [2020-09-24 19:34:02,951 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-09-24 19:34:02,952 INFO L268 CegarLoopResult]: For program point L143-1(line 143) no Hoare annotation was computed. [2020-09-24 19:34:02,952 INFO L268 CegarLoopResult]: For program point L143-2(line 143) no Hoare annotation was computed. [2020-09-24 19:34:02,952 INFO L268 CegarLoopResult]: For program point L143-3(line 143) no Hoare annotation was computed. [2020-09-24 19:34:02,952 INFO L268 CegarLoopResult]: For program point L127-2(line 127) no Hoare annotation was computed. [2020-09-24 19:34:02,952 INFO L268 CegarLoopResult]: For program point L127-3(line 127) no Hoare annotation was computed. [2020-09-24 19:34:02,952 INFO L271 CegarLoopResult]: At program point L127-4(lines 127 133) the Hoare annotation is: true [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L144-3(lines 144 150) no Hoare annotation was computed. [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L144-4(line 144) no Hoare annotation was computed. [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L144-5(line 144) no Hoare annotation was computed. [2020-09-24 19:34:02,953 INFO L271 CegarLoopResult]: At program point L144-6(lines 144 150) the Hoare annotation is: true [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L144-7(lines 144 150) no Hoare annotation was computed. [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-24 19:34:02,953 INFO L268 CegarLoopResult]: For program point L112-1(line 112) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L112-2(line 112) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L129-1(line 129) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L129-2(line 129) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L146-1(line 146) no Hoare annotation was computed. [2020-09-24 19:34:02,954 INFO L268 CegarLoopResult]: For program point L113-1(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L146-2(line 146) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L113-2(lines 110 153) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L113-3(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L113-4(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L113-5(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L113-6(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,955 INFO L268 CegarLoopResult]: For program point L113-7(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L268 CegarLoopResult]: For program point L113-8(line 113) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L268 CegarLoopResult]: For program point ludcmpFINAL(lines 109 153) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L268 CegarLoopResult]: For program point L130-3(lines 130 131) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L268 CegarLoopResult]: For program point L130-4(line 130) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L268 CegarLoopResult]: For program point L130-5(line 130) no Hoare annotation was computed. [2020-09-24 19:34:02,956 INFO L271 CegarLoopResult]: At program point L130-6(lines 130 131) the Hoare annotation is: true [2020-09-24 19:34:02,957 INFO L268 CegarLoopResult]: For program point L130-7(lines 130 131) no Hoare annotation was computed. [2020-09-24 19:34:02,957 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 19:34:02,957 INFO L268 CegarLoopResult]: For program point L147-3(lines 147 148) no Hoare annotation was computed. [2020-09-24 19:34:02,957 INFO L268 CegarLoopResult]: For program point L147-4(line 147) no Hoare annotation was computed. [2020-09-24 19:34:02,957 INFO L268 CegarLoopResult]: For program point L147-5(line 147) no Hoare annotation was computed. [2020-09-24 19:34:02,957 INFO L271 CegarLoopResult]: At program point L147-6(lines 147 148) the Hoare annotation is: true [2020-09-24 19:34:02,957 INFO L268 CegarLoopResult]: For program point L147-7(lines 147 148) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L131-1(line 131) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L131-2(line 131) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L131-3(line 131) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L131-4(line 131) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 19:34:02,958 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L148-1(line 148) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L148-2(line 148) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L148-3(line 148) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L148-4(line 148) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L132(lines 127 133) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 19:34:02,959 INFO L268 CegarLoopResult]: For program point L149-1(line 149) no Hoare annotation was computed. [2020-09-24 19:34:02,960 INFO L268 CegarLoopResult]: For program point L116-3(lines 116 134) no Hoare annotation was computed. [2020-09-24 19:34:02,960 INFO L268 CegarLoopResult]: For program point L116-4(line 116) no Hoare annotation was computed. [2020-09-24 19:34:02,960 INFO L268 CegarLoopResult]: For program point L116-5(line 116) no Hoare annotation was computed. [2020-09-24 19:34:02,960 INFO L271 CegarLoopResult]: At program point L116-6(lines 116 134) the Hoare annotation is: true [2020-09-24 19:34:02,960 INFO L268 CegarLoopResult]: For program point L116-7(lines 116 134) no Hoare annotation was computed. [2020-09-24 19:34:02,960 INFO L268 CegarLoopResult]: For program point L69-4(line 69) no Hoare annotation was computed. [2020-09-24 19:34:02,960 INFO L268 CegarLoopResult]: For program point L69-5(line 69) no Hoare annotation was computed. [2020-09-24 19:34:02,961 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 19:34:02,961 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 19:34:02,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:34:02,961 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#x~0.offset| |old(~#x~0.offset)|) (= |old(#memory_real)| |#memory_real|) (= |~#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)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 19:34:02,961 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 19:34:02,961 INFO L268 CegarLoopResult]: For program point L69-1(line 69) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L69-2(line 69) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L69-3(line 69) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L78(lines 78 79) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point L78-3(lines 78 79) no Hoare annotation was computed. [2020-09-24 19:34:02,962 INFO L268 CegarLoopResult]: For program point fabsEXIT(lines 74 81) no Hoare annotation was computed. [2020-09-24 19:34:02,963 INFO L271 CegarLoopResult]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2020-09-24 19:34:02,963 INFO L268 CegarLoopResult]: For program point fabsFINAL(lines 74 81) no Hoare annotation was computed. [2020-09-24 19:34:02,963 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:34:02,963 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 19:34:02,963 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 19:34:02,963 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:34:02,963 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L97-1(line 97) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L97-2(line 97) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L97-4(line 97) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 83 107) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 19:34:02,964 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 19:34:02,965 INFO L268 CegarLoopResult]: For program point L98-1(line 98) no Hoare annotation was computed. [2020-09-24 19:34:02,965 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 19:34:02,965 INFO L268 CegarLoopResult]: For program point L94-3(lines 94 99) no Hoare annotation was computed. [2020-09-24 19:34:02,965 INFO L268 CegarLoopResult]: For program point L94-4(line 94) no Hoare annotation was computed. [2020-09-24 19:34:02,965 INFO L268 CegarLoopResult]: For program point L94-5(line 94) no Hoare annotation was computed. [2020-09-24 19:34:02,965 INFO L264 CegarLoopResult]: At program point L94-6(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-24 19:34:02,966 INFO L264 CegarLoopResult]: At program point L94-7(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L86-1(line 86) no Hoare annotation was computed. [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L86-2(line 86) no Hoare annotation was computed. [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L86-3(line 86) no Hoare annotation was computed. [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L91-3(line 91) no Hoare annotation was computed. [2020-09-24 19:34:02,966 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 19:34:02,967 INFO L268 CegarLoopResult]: For program point L91-4(line 91) no Hoare annotation was computed. [2020-09-24 19:34:02,967 INFO L268 CegarLoopResult]: For program point L87-1(line 87) no Hoare annotation was computed. [2020-09-24 19:34:02,967 INFO L264 CegarLoopResult]: At program point L91-5(lines 91 102) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-24 19:34:02,967 INFO L264 CegarLoopResult]: At program point L91-6(lines 91 102) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-24 19:34:02,967 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 83 107) no Hoare annotation was computed. [2020-09-24 19:34:02,967 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 19:34:02,967 INFO L268 CegarLoopResult]: For program point L104-1(line 104) no Hoare annotation was computed. [2020-09-24 19:34:02,968 INFO L268 CegarLoopResult]: For program point L104-2(line 104) no Hoare annotation was computed. [2020-09-24 19:34:02,968 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-24 19:34:02,968 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-24 19:34:02,968 INFO L268 CegarLoopResult]: For program point L96-1(lines 95 99) no Hoare annotation was computed. [2020-09-24 19:34:02,968 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 83 107) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-24 19:34:02,968 INFO L268 CegarLoopResult]: For program point L101(lines 91 102) no Hoare annotation was computed. [2020-09-24 19:34:02,968 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 19:34:02,969 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 19:34:02,969 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 19:34:02,969 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 19:34:02,969 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 19:34:02,969 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 19:34:02,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:34:02 BoogieIcfgContainer [2020-09-24 19:34:02,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:34:02,996 INFO L168 Benchmark]: Toolchain (without parser) took 19047.25 ms. Allocated memory was 141.0 MB in the beginning and 378.5 MB in the end (delta: 237.5 MB). Free memory was 104.6 MB in the beginning and 104.6 MB in the end (delta: -8.8 kB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:02,996 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 19:34:02,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.94 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 182.1 MB in the end (delta: -78.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:02,998 INFO L168 Benchmark]: Boogie Preprocessor took 67.96 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 179.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:02,999 INFO L168 Benchmark]: RCFGBuilder took 701.08 ms. Allocated memory is still 203.9 MB. Free memory was 179.0 MB in the beginning and 140.8 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:03,000 INFO L168 Benchmark]: TraceAbstraction took 17731.72 ms. Allocated memory was 203.9 MB in the beginning and 378.5 MB in the end (delta: 174.6 MB). Free memory was 140.1 MB in the beginning and 104.6 MB in the end (delta: 35.5 MB). Peak memory consumption was 210.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:03,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 535.94 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 182.1 MB in the end (delta: -78.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.96 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 179.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 701.08 ms. Allocated memory is still 203.9 MB. Free memory was 179.0 MB in the beginning and 140.8 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17731.72 ms. Allocated memory was 203.9 MB in the beginning and 378.5 MB in the end (delta: 174.6 MB). Free memory was 140.1 MB in the beginning and 104.6 MB in the end (delta: 35.5 MB). Peak memory consumption was 210.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: n <= 5 && 5 <= n - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: (i <= 5 && n <= 5) && 5 <= n - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 10, TraceHistogramMax: 12, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 904 SDslu, 1423 SDs, 0 SdLazy, 2054 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 180 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 58 PreInvPairs, 101 NumberOfFragments, 98 HoareAnnotationTreeSize, 58 FomulaSimplifications, 1136 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 172 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 877 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 867 ConstructedInterpolants, 0 QuantifiedInterpolants, 269250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 1161/1743 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...