/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:33:33,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:33:33,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:33:33,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:33:33,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:33:33,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:33:33,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:33:33,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:33:33,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:33:33,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:33:33,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:33:33,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:33:33,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:33:33,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:33:33,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:33:33,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:33:33,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:33:33,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:33:33,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:33:33,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:33:33,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:33:33,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:33:33,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:33:33,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:33:33,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:33:33,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:33:33,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:33:33,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:33:33,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:33:33,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:33:33,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:33:33,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:33:33,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:33:33,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:33:33,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:33:33,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:33:33,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:33:33,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:33:33,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:33:33,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:33:33,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:33:33,479 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 [2020-09-25 12:33:33,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:33:33,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:33:33,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:33:33,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:33:33,536 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:33:33,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:33:33,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:33:33,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:33:33,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:33:33,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:33:33,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:33:33,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:33:33,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:33:33,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:33:33,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:33:33,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:33:33,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:33:33,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:33:33,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:33:33,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:33:33,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:33:33,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:33:33,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:33:33,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:33:33,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:33:33,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:33:33,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:33:33,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:33:33,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:33:33,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:33:33,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:33:33,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:33:34,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:33:34,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:33:34,006 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:33:34,007 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-09-25 12:33:34,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1379defde/23e24d8a754144da90cbd75957332ef8/FLAGdd5e22bc1 [2020-09-25 12:33:34,566 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:33:34,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-09-25 12:33:34,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1379defde/23e24d8a754144da90cbd75957332ef8/FLAGdd5e22bc1 [2020-09-25 12:33:34,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1379defde/23e24d8a754144da90cbd75957332ef8 [2020-09-25 12:33:34,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:33:34,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:33:34,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:33:34,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:33:34,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:33:34,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:33:34" (1/1) ... [2020-09-25 12:33:34,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd4ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:34, skipping insertion in model container [2020-09-25 12:33:34,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:33:34" (1/1) ... [2020-09-25 12:33:34,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:33:34,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:33:35,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:33:35,271 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:33:35,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:33:35,314 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:33:35,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35 WrapperNode [2020-09-25 12:33:35,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:33:35,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:33:35,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:33:35,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:33:35,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (1/1) ... [2020-09-25 12:33:35,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:33:35,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:33:35,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:33:35,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:33:35,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (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 [2020-09-25 12:33:35,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:33:35,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:33:35,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 12:33:35,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:33:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:33:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 12:33:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:33:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:33:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:33:35,803 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:33:35,804 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:33:35,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:33:35 BoogieIcfgContainer [2020-09-25 12:33:35,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:33:35,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:33:35,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:33:35,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:33:35,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:33:34" (1/3) ... [2020-09-25 12:33:35,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1875276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:33:35, skipping insertion in model container [2020-09-25 12:33:35,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:33:35" (2/3) ... [2020-09-25 12:33:35,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1875276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:33:35, skipping insertion in model container [2020-09-25 12:33:35,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:33:35" (3/3) ... [2020-09-25 12:33:35,832 INFO L109 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2020-09-25 12:33:35,862 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:33:35,884 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:33:35,905 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:33:35,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:33:35,936 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:33:35,936 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:33:35,936 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:33:35,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:33:35,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:33:35,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:33:35,937 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:33:35,959 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 12:33:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 12:33:35,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:33:35,968 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] [2020-09-25 12:33:35,968 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:33:35,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:33:35,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1562147583, now seen corresponding path program 1 times [2020-09-25 12:33:35,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:33:35,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063807827] [2020-09-25 12:33:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:33:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:36,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:36,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:36,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:33:36,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:33:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 12:33:36,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:36,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:33:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:33:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 12:33:36,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 12:33:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:33:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:36,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:36,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:36,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:33:36,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:33:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:33:36,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:36,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:33:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:33:36,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:33:36,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:33:36,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063807827] [2020-09-25 12:33:36,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:33:36,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 12:33:36,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121028736] [2020-09-25 12:33:36,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 12:33:36,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:33:36,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 12:33:36,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:33:36,528 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-09-25 12:33:36,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:33:36,602 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2020-09-25 12:33:36,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 12:33:36,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 12:33:36,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:33:36,616 INFO L225 Difference]: With dead ends: 105 [2020-09-25 12:33:36,617 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 12:33:36,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 12:33:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 12:33:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2020-09-25 12:33:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 12:33:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-09-25 12:33:36,679 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 23 [2020-09-25 12:33:36,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:33:36,680 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-09-25 12:33:36,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 12:33:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-09-25 12:33:36,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 12:33:36,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:33:36,682 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] [2020-09-25 12:33:36,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:33:36,683 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:33:36,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:33:36,683 INFO L82 PathProgramCache]: Analyzing trace with hash 42061886, now seen corresponding path program 1 times [2020-09-25 12:33:36,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:33:36,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107777272] [2020-09-25 12:33:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:33:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:36,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:37,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:37,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:37,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 12:33:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:33:37,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-09-25 12:33:37,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:37,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:33:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:33:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:33:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:33:37,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:33:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:37,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:37,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:37,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:33:37,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:33:37,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:33:37,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:37,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:33:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:33:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:33:37,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:33:37,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:33:37,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107777272] [2020-09-25 12:33:37,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:33:37,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:33:37,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394396356] [2020-09-25 12:33:37,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:33:37,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:33:37,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:33:37,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:33:37,480 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 7 states. [2020-09-25 12:33:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:33:37,655 INFO L93 Difference]: Finished difference Result 92 states and 103 transitions. [2020-09-25 12:33:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:33:37,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-25 12:33:37,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:33:37,660 INFO L225 Difference]: With dead ends: 92 [2020-09-25 12:33:37,660 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 12:33:37,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:33:37,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 12:33:37,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 51. [2020-09-25 12:33:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 12:33:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2020-09-25 12:33:37,686 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 27 [2020-09-25 12:33:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:33:37,686 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2020-09-25 12:33:37,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:33:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2020-09-25 12:33:37,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 12:33:37,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:33:37,691 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:33:37,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:33:37,692 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:33:37,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:33:37,693 INFO L82 PathProgramCache]: Analyzing trace with hash -2023869189, now seen corresponding path program 2 times [2020-09-25 12:33:37,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:33:37,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396404520] [2020-09-25 12:33:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:33:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:37,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:37,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:37,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:38,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:38,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 12:33:38,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:33:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 12:33:38,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:38,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:33:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:33:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:33:38,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:38,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:33:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:38,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:38,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:33:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:33:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:33:38,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:38,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:33:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:33:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:33:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:33:38,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396404520] [2020-09-25 12:33:38,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:33:38,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:33:38,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519787981] [2020-09-25 12:33:38,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:33:38,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:33:38,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:33:38,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:33:38,264 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 9 states. [2020-09-25 12:33:38,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:33:38,499 INFO L93 Difference]: Finished difference Result 135 states and 153 transitions. [2020-09-25 12:33:38,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:33:38,502 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-09-25 12:33:38,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:33:38,504 INFO L225 Difference]: With dead ends: 135 [2020-09-25 12:33:38,504 INFO L226 Difference]: Without dead ends: 94 [2020-09-25 12:33:38,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:33:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-25 12:33:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 55. [2020-09-25 12:33:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 12:33:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2020-09-25 12:33:38,525 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 31 [2020-09-25 12:33:38,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:33:38,528 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2020-09-25 12:33:38,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:33:38,528 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2020-09-25 12:33:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 12:33:38,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:33:38,530 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:33:38,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:33:38,532 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:33:38,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:33:38,532 INFO L82 PathProgramCache]: Analyzing trace with hash -909118664, now seen corresponding path program 3 times [2020-09-25 12:33:38,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:33:38,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174762929] [2020-09-25 12:33:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:33:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:38,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:38,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:38,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:39,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:39,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:39,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:33:39,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:33:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-09-25 12:33:39,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:39,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:33:39,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:33:39,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:33:39,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:39,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:33:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:39,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:39,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:33:39,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:33:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:33:39,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:39,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:33:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:33:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:33:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:33:39,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174762929] [2020-09-25 12:33:39,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:33:39,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:33:39,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004366752] [2020-09-25 12:33:39,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:33:39,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:33:39,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:33:39,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:33:39,487 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 9 states. [2020-09-25 12:33:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:33:39,652 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2020-09-25 12:33:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:33:39,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 12:33:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:33:39,654 INFO L225 Difference]: With dead ends: 118 [2020-09-25 12:33:39,655 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 12:33:39,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:33:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 12:33:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2020-09-25 12:33:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 12:33:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-09-25 12:33:39,663 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 35 [2020-09-25 12:33:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:33:39,664 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-09-25 12:33:39,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:33:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-09-25 12:33:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-25 12:33:39,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:33:39,665 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:33:39,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:33:39,666 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:33:39,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:33:39,666 INFO L82 PathProgramCache]: Analyzing trace with hash -460436747, now seen corresponding path program 4 times [2020-09-25 12:33:39,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:33:39,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551772076] [2020-09-25 12:33:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:33:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:39,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:39,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:39,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:40,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:40,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 12:33:40,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:33:40,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-09-25 12:33:40,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:40,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:33:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 12:33:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:33:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:41,045 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 24 [2020-09-25 12:33:41,225 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 13 [2020-09-25 12:33:41,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:33:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:33:41,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:33:41,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:33:41,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:33:41,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:33:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:33:41,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:33:41,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:33:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:33:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:33:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:33:41,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:33:41,268 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 12:33:41,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551772076] [2020-09-25 12:33:41,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:33:41,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:33:41,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771712204] [2020-09-25 12:33:41,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:33:41,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:33:41,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:33:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:33:41,271 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 10 states. [2020-09-25 12:33:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:33:41,717 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-09-25 12:33:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:33:41,719 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-09-25 12:33:41,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:33:41,720 INFO L225 Difference]: With dead ends: 71 [2020-09-25 12:33:41,720 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:33:41,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:33:41,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:33:41,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:33:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:33:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:33:41,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-09-25 12:33:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:33:41,724 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:33:41,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:33:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:33:41,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:33:41,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:33:41,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:33:42,148 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2020-09-25 12:33:44,333 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2020-09-25 12:33:46,509 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2020-09-25 12:33:46,565 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 12:33:46,565 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:33:46,565 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:33:46,565 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 12:33:46,566 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 12:33:46,566 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:33:46,566 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2020-09-25 12:33:46,566 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 12:33:46,566 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-09-25 12:33:46,566 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 12:33:46,567 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed. [2020-09-25 12:33:46,568 INFO L268 CegarLoopResult]: For program point L19-5(line 19) no Hoare annotation was computed. [2020-09-25 12:33:46,569 INFO L264 CegarLoopResult]: At program point L19-6(lines 19 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 12:33:46,569 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 12:33:46,569 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-25 12:33:46,569 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 12:33:46,570 INFO L268 CegarLoopResult]: For program point L20-4(line 20) no Hoare annotation was computed. [2020-09-25 12:33:46,570 INFO L264 CegarLoopResult]: At program point L20-5(lines 20 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 12:33:46,570 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 12:33:46,570 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-25 12:33:46,570 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 12:33:46,570 INFO L268 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed. [2020-09-25 12:33:46,571 INFO L268 CegarLoopResult]: For program point L21-5(line 21) no Hoare annotation was computed. [2020-09-25 12:33:46,571 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (or (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= main_~v~0 0)) (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472))))) [2020-09-25 12:33:46,572 INFO L264 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: (and (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (not (= main_~v~0 (let ((.cse1 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse1 (- 4))) 4294967296)) (* 4 .cse1)))))) [2020-09-25 12:33:46,572 INFO L268 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2020-09-25 12:33:46,572 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 12:33:46,573 INFO L268 CegarLoopResult]: For program point L17-4(line 17) no Hoare annotation was computed. [2020-09-25 12:33:46,573 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2020-09-25 12:33:46,573 INFO L268 CegarLoopResult]: For program point L17-5(line 17) no Hoare annotation was computed. [2020-09-25 12:33:46,573 INFO L264 CegarLoopResult]: At program point L17-6(lines 17 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 12:33:46,573 INFO L268 CegarLoopResult]: For program point L17-7(lines 17 23) no Hoare annotation was computed. [2020-09-25 12:33:46,573 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2020-09-25 12:33:46,574 INFO L268 CegarLoopResult]: For program point L22(lines 20 23) no Hoare annotation was computed. [2020-09-25 12:33:46,574 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 12:33:46,574 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 23) no Hoare annotation was computed. [2020-09-25 12:33:46,574 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 12:33:46,574 INFO L268 CegarLoopResult]: For program point L18-4(line 18) no Hoare annotation was computed. [2020-09-25 12:33:46,579 INFO L268 CegarLoopResult]: For program point L18-5(line 18) no Hoare annotation was computed. [2020-09-25 12:33:46,579 INFO L264 CegarLoopResult]: At program point L18-6(lines 18 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 12:33:46,579 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 12:33:46,580 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 12:33:46,580 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 12:33:46,580 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 12:33:46,581 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 12:33:46,581 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 12:33:46,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:33:46 BoogieIcfgContainer [2020-09-25 12:33:46,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:33:46,635 INFO L168 Benchmark]: Toolchain (without parser) took 11687.29 ms. Allocated memory was 140.5 MB in the beginning and 272.6 MB in the end (delta: 132.1 MB). Free memory was 103.9 MB in the beginning and 173.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 62.2 MB. Max. memory is 7.1 GB. [2020-09-25 12:33:46,637 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:33:46,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.47 ms. Allocated memory is still 140.5 MB. Free memory was 103.2 MB in the beginning and 93.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:33:46,639 INFO L168 Benchmark]: Boogie Preprocessor took 117.27 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 181.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:33:46,640 INFO L168 Benchmark]: RCFGBuilder took 383.70 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 166.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:33:46,642 INFO L168 Benchmark]: TraceAbstraction took 10810.21 ms. Allocated memory was 203.4 MB in the beginning and 272.6 MB in the end (delta: 69.2 MB). Free memory was 165.9 MB in the beginning and 173.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2020-09-25 12:33:46,649 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.47 ms. Allocated memory is still 140.5 MB. Free memory was 103.2 MB in the beginning and 93.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.27 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 181.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.70 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 166.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10810.21 ms. Allocated memory was 203.4 MB in the beginning and 272.6 MB in the end (delta: 69.2 MB). Free memory was 165.9 MB in the beginning and 173.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 61.3 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: 17]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (0 < v / 4294967296 + 1 && v <= 0) || 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 269 SDtfs, 253 SDslu, 1192 SDs, 0 SdLazy, 277 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 116 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 16 PreInvPairs, 30 NumberOfFragments, 210 HoareAnnotationTreeSize, 16 FomulaSimplifications, 117 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 99 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 20206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 24/50 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...