/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=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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:29:52,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:29:52,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:29:52,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:29:52,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:29:52,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:29:52,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:29:52,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:29:52,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:29:52,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:29:52,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:29:52,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:29:52,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:29:52,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:29:52,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:29:52,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:29:52,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:29:52,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:29:52,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:29:52,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:29:52,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:29:52,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:29:52,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:29:52,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:29:52,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:29:52,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:29:52,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:29:52,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:29:52,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:29:52,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:29:52,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:29:52,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:29:52,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:29:52,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:29:52,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:29:52,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:29:52,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:29:52,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:29:52,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:29:52,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:29:52,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:29:52,486 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 18:29:52,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:29:52,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:29:52,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:29:52,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:29:52,541 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:29:52,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:29:52,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:29:52,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:29:52,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:29:52,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:29:52,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:29:52,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:29:52,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:29:52,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:29:52,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:29:52,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:29:52,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:29:52,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:29:52,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:29:52,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:29:52,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:29:52,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:29:52,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:29:52,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:29:52,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:29:52,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:29:52,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:29:52,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:29:52,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:29:52,548 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=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=5000;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=5000;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=5000;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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:29:53,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:29:53,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:29:53,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:29:53,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:29:53,105 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:29:53,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 18:29:53,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/156bd4e3a/83ae3b41ff2a4e67bd2fd7eb05e7126b/FLAG43a4fe4ae [2020-09-24 18:29:53,754 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:29:53,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 18:29:53,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/156bd4e3a/83ae3b41ff2a4e67bd2fd7eb05e7126b/FLAG43a4fe4ae [2020-09-24 18:29:54,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/156bd4e3a/83ae3b41ff2a4e67bd2fd7eb05e7126b [2020-09-24 18:29:54,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:29:54,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:29:54,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:29:54,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:29:54,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:29:54,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783693b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54, skipping insertion in model container [2020-09-24 18:29:54,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:29:54,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:29:54,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:29:54,443 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:29:54,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:29:54,588 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:29:54,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54 WrapperNode [2020-09-24 18:29:54,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:29:54,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:29:54,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:29:54,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:29:54,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (1/1) ... [2020-09-24 18:29:54,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:29:54,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:29:54,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:29:54,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:29:54,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (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 18:29:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:29:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:29:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:29:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 18:29:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:29:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:29:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:29:55,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:29:55,194 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:29:55,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:29:55 BoogieIcfgContainer [2020-09-24 18:29:55,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:29:55,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:29:55,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:29:55,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:29:55,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:29:54" (1/3) ... [2020-09-24 18:29:55,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3235ffe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:29:55, skipping insertion in model container [2020-09-24 18:29:55,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:54" (2/3) ... [2020-09-24 18:29:55,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3235ffe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:29:55, skipping insertion in model container [2020-09-24 18:29:55,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:29:55" (3/3) ... [2020-09-24 18:29:55,212 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-09-24 18:29:55,224 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:29:55,235 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 18:29:55,259 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 18:29:55,294 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:29:55,295 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:29:55,295 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:29:55,295 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:29:55,295 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:29:55,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:29:55,296 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:29:55,296 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:29:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-09-24 18:29:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:29:55,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:55,336 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 18:29:55,336 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:55,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:55,345 INFO L82 PathProgramCache]: Analyzing trace with hash 477414535, now seen corresponding path program 1 times [2020-09-24 18:29:55,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:55,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784261665] [2020-09-24 18:29:55,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:55,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:55,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:29:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:29:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-24 18:29:55,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:29:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:29:55,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:29:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:56,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:56,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:56,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:56,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:29:56,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:56,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:56,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:56,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:56,102 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 18:29:56,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784261665] [2020-09-24 18:29:56,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:56,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:29:56,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460434315] [2020-09-24 18:29:56,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:29:56,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:56,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:29:56,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:56,135 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-09-24 18:29:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:56,493 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2020-09-24 18:29:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:29:56,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-09-24 18:29:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:56,512 INFO L225 Difference]: With dead ends: 210 [2020-09-24 18:29:56,512 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 18:29:56,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:56,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 18:29:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 76. [2020-09-24 18:29:56,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 18:29:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-09-24 18:29:56,603 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 30 [2020-09-24 18:29:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:56,604 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-09-24 18:29:56,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:29:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-09-24 18:29:56,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 18:29:56,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:56,605 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] [2020-09-24 18:29:56,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:29:56,606 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:56,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:56,607 INFO L82 PathProgramCache]: Analyzing trace with hash 572189094, now seen corresponding path program 1 times [2020-09-24 18:29:56,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:56,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360811808] [2020-09-24 18:29:56,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:56,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:56,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:56,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 18:29:56,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:56,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 18:29:56,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:56,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:56,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 18:29:56,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:29:56,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:56,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:56,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:56,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:56,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:29:56,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:56,771 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 18:29:56,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360811808] [2020-09-24 18:29:56,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:56,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:29:56,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485668530] [2020-09-24 18:29:56,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:29:56,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:56,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:29:56,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:56,776 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 4 states. [2020-09-24 18:29:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:56,992 INFO L93 Difference]: Finished difference Result 159 states and 167 transitions. [2020-09-24 18:29:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:29:56,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-09-24 18:29:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:56,995 INFO L225 Difference]: With dead ends: 159 [2020-09-24 18:29:56,995 INFO L226 Difference]: Without dead ends: 108 [2020-09-24 18:29:56,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-24 18:29:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2020-09-24 18:29:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 18:29:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2020-09-24 18:29:57,026 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 31 [2020-09-24 18:29:57,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:57,027 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2020-09-24 18:29:57,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:29:57,027 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2020-09-24 18:29:57,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 18:29:57,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:57,028 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] [2020-09-24 18:29:57,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:29:57,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:57,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:57,030 INFO L82 PathProgramCache]: Analyzing trace with hash -921386779, now seen corresponding path program 1 times [2020-09-24 18:29:57,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:57,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789297714] [2020-09-24 18:29:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:57,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:57,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:57,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 18:29:57,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:57,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 18:29:57,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:29:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 18:29:57,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:29:57,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:57,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:57,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:57,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:57,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:29:57,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:57,304 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 18:29:57,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789297714] [2020-09-24 18:29:57,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:57,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:29:57,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922478332] [2020-09-24 18:29:57,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:29:57,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:29:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:29:57,307 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 6 states. [2020-09-24 18:29:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:57,527 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-09-24 18:29:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:29:57,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-09-24 18:29:57,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:57,529 INFO L225 Difference]: With dead ends: 93 [2020-09-24 18:29:57,529 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 18:29:57,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:29:57,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 18:29:57,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 73. [2020-09-24 18:29:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 18:29:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-09-24 18:29:57,545 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 31 [2020-09-24 18:29:57,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:57,545 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-09-24 18:29:57,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:29:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-09-24 18:29:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 18:29:57,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:57,547 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] [2020-09-24 18:29:57,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:29:57,548 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:57,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:57,549 INFO L82 PathProgramCache]: Analyzing trace with hash -223412704, now seen corresponding path program 1 times [2020-09-24 18:29:57,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:57,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468202695] [2020-09-24 18:29:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:57,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:57,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 18:29:57,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 18:29:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 18:29:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:29:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:57,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:57,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:57,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:57,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:57,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:29:57,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:57,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:57,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:57,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:57,814 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 18:29:57,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468202695] [2020-09-24 18:29:57,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:57,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:29:57,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230853786] [2020-09-24 18:29:57,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:29:57,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:57,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:29:57,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:57,824 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 4 states. [2020-09-24 18:29:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:58,001 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2020-09-24 18:29:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:29:58,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-09-24 18:29:58,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:58,002 INFO L225 Difference]: With dead ends: 101 [2020-09-24 18:29:58,002 INFO L226 Difference]: Without dead ends: 84 [2020-09-24 18:29:58,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-24 18:29:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2020-09-24 18:29:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 18:29:58,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-09-24 18:29:58,017 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 33 [2020-09-24 18:29:58,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:58,021 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-09-24 18:29:58,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:29:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-09-24 18:29:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 18:29:58,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:58,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:29:58,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:29:58,027 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:58,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:58,027 INFO L82 PathProgramCache]: Analyzing trace with hash 276122014, now seen corresponding path program 1 times [2020-09-24 18:29:58,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:58,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226391944] [2020-09-24 18:29:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:58,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:58,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:58,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 18:29:59,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:29:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 947 [2020-09-24 18:29:59,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:29:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:29:59,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 18:29:59,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:59,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:59,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:29:59,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:59,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:59,153 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 18:29:59,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226391944] [2020-09-24 18:29:59,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:59,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:29:59,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839493121] [2020-09-24 18:29:59,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:29:59,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:59,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:29:59,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:29:59,156 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-09-24 18:29:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:59,388 INFO L93 Difference]: Finished difference Result 171 states and 179 transitions. [2020-09-24 18:29:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:29:59,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-24 18:29:59,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:59,390 INFO L225 Difference]: With dead ends: 171 [2020-09-24 18:29:59,390 INFO L226 Difference]: Without dead ends: 129 [2020-09-24 18:29:59,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:29:59,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-24 18:29:59,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 93. [2020-09-24 18:29:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 18:29:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2020-09-24 18:29:59,402 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 52 [2020-09-24 18:29:59,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:59,403 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2020-09-24 18:29:59,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:29:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2020-09-24 18:29:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 18:29:59,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:59,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:29:59,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:29:59,405 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:59,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:59,406 INFO L82 PathProgramCache]: Analyzing trace with hash -94524522, now seen corresponding path program 1 times [2020-09-24 18:29:59,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:59,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155616777] [2020-09-24 18:29:59,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:59,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 18:29:59,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 18:29:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:29:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 18:29:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:29:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:59,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:29:59,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:59,636 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 18:29:59,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155616777] [2020-09-24 18:29:59,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:59,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:29:59,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609644359] [2020-09-24 18:29:59,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:29:59,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:59,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:29:59,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:29:59,639 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand 6 states. [2020-09-24 18:29:59,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:59,890 INFO L93 Difference]: Finished difference Result 135 states and 141 transitions. [2020-09-24 18:29:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:29:59,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 18:29:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:59,892 INFO L225 Difference]: With dead ends: 135 [2020-09-24 18:29:59,892 INFO L226 Difference]: Without dead ends: 133 [2020-09-24 18:29:59,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:29:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-24 18:29:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 93. [2020-09-24 18:29:59,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 18:29:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2020-09-24 18:29:59,901 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 53 [2020-09-24 18:29:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:59,901 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2020-09-24 18:29:59,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:29:59,902 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2020-09-24 18:29:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 18:29:59,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:59,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:29:59,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:29:59,904 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 893991191, now seen corresponding path program 1 times [2020-09-24 18:29:59,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:59,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276340197] [2020-09-24 18:29:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:59,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:00,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:00,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 18:30:00,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 18:30:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 18:30:00,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:00,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:00,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:00,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:00,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:30:00,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:00,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:00,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:00,301 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 18:30:00,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276340197] [2020-09-24 18:30:00,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:00,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:00,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003885145] [2020-09-24 18:30:00,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:00,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:00,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:00,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:00,307 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 6 states. [2020-09-24 18:30:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:00,569 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2020-09-24 18:30:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:00,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-24 18:30:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:00,571 INFO L225 Difference]: With dead ends: 188 [2020-09-24 18:30:00,572 INFO L226 Difference]: Without dead ends: 126 [2020-09-24 18:30:00,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-24 18:30:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 70. [2020-09-24 18:30:00,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 18:30:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 18:30:00,585 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 53 [2020-09-24 18:30:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:00,585 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 18:30:00,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 18:30:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 18:30:00,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:00,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:00,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:30:00,593 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:00,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:00,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2013372873, now seen corresponding path program 1 times [2020-09-24 18:30:00,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:00,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828072512] [2020-09-24 18:30:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:00,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:02,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 18:30:02,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1634 [2020-09-24 18:30:02,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 18:30:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:02,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 18:30:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:02,817 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 49 [2020-09-24 18:30:03,074 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 62 [2020-09-24 18:30:03,580 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 69 [2020-09-24 18:30:03,792 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 60 [2020-09-24 18:30:04,030 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 64 [2020-09-24 18:30:04,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:04,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:30:04,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:04,283 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 18:30:04,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828072512] [2020-09-24 18:30:04,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:04,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 18:30:04,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289551934] [2020-09-24 18:30:04,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 18:30:04,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:04,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 18:30:04,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:04,286 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 14 states. [2020-09-24 18:30:07,096 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-09-24 18:30:09,410 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 91 [2020-09-24 18:30:09,669 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-09-24 18:30:10,019 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-09-24 18:30:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:10,230 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-24 18:30:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 18:30:10,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-09-24 18:30:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:10,231 INFO L225 Difference]: With dead ends: 94 [2020-09-24 18:30:10,232 INFO L226 Difference]: Without dead ends: 92 [2020-09-24 18:30:10,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2020-09-24 18:30:10,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-24 18:30:10,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2020-09-24 18:30:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 18:30:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-24 18:30:10,245 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 55 [2020-09-24 18:30:10,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:10,245 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-24 18:30:10,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 18:30:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-24 18:30:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 18:30:10,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:10,249 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:10,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:30:10,250 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:10,251 INFO L82 PathProgramCache]: Analyzing trace with hash 511170824, now seen corresponding path program 1 times [2020-09-24 18:30:10,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:10,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772893694] [2020-09-24 18:30:10,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:10,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:11,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:15,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 18:30:15,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:15,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-09-24 18:30:15,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:15,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:15,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:15,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 18:30:15,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:15,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:15,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:15,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:30:15,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:30:15,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:15,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:15,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772893694] [2020-09-24 18:30:15,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:30:15,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 18:30:15,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881654335] [2020-09-24 18:30:15,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:15,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:15,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:15,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:15,600 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 6 states. [2020-09-24 18:30:16,052 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-09-24 18:30:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:16,317 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2020-09-24 18:30:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:16,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-09-24 18:30:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:16,319 INFO L225 Difference]: With dead ends: 95 [2020-09-24 18:30:16,319 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:30:16,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:30:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:30:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:30:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:30:16,321 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-24 18:30:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:16,321 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:30:16,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:30:16,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:30:16,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:30:16,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:30:21,053 WARN L193 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2020-09-24 18:30:21,330 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-09-24 18:30:23,454 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-09-24 18:30:23,511 INFO L268 CegarLoopResult]: For program point L1(line 1) no Hoare annotation was computed. [2020-09-24 18:30:23,511 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 18:30:23,512 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 18:30:23,512 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:30:23,512 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 18:30:23,512 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 18:30:23,512 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_136~0 |old(~__return_136~0)|) (= |old(#valid)| |#valid|)) [2020-09-24 18:30:23,512 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:30:23,512 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:30:23,513 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:30:23,513 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:30:23,513 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:30:23,513 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:30:23,513 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 18:30:23,513 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 18:30:23,513 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:30:23,513 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:30:23,514 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 18:30:23,514 INFO L268 CegarLoopResult]: For program point L60(lines 60 86) no Hoare annotation was computed. [2020-09-24 18:30:23,514 INFO L268 CegarLoopResult]: For program point L27(lines 27 150) no Hoare annotation was computed. [2020-09-24 18:30:23,514 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 166) no Hoare annotation was computed. [2020-09-24 18:30:23,514 INFO L264 CegarLoopResult]: At program point L85(lines 60 86) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (let ((.cse0 (+ main_~main__index2~0 1))) (<= (+ main_~main__index1~0 (* 4294967296 (div (+ (* main_~main__index1~0 (- 1)) (* (div .cse0 4294967296) 4294967296) 4294967296) 4294967296))) .cse0)) (<= 1 main_~main____CPAchecker_TMP_0~1) (<= 1 main_~__tmp_1~0) (<= main_~main__index2~0 (+ .cse1 99998)) (<= 1 main_~__VERIFIER_assert__cond~0) (<= (+ main_~main__index1~0 .cse1 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-24 18:30:23,514 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 18:30:23,514 INFO L268 CegarLoopResult]: For program point L19(lines 19 165) no Hoare annotation was computed. [2020-09-24 18:30:23,515 INFO L264 CegarLoopResult]: At program point L77(lines 44 137) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (<= 1 main_~__tmp_1~0) (<= 1 main_~__VERIFIER_assert__cond~0) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-24 18:30:23,515 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 18:30:23,515 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-24 18:30:23,515 INFO L268 CegarLoopResult]: For program point L69(lines 69 78) no Hoare annotation was computed. [2020-09-24 18:30:23,515 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-24 18:30:23,515 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L264 CegarLoopResult]: At program point L144(lines 29 145) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (<= 1 main_~main____CPAchecker_TMP_0~0) (<= main_~main__loop_entered~0 (* 4294967296 (div main_~main__loop_entered~0 4294967296))) (<= 0 main_~main__loop_entered~0) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L103-1(line 103) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L103-2(line 103) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L103-3(line 103) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L103-4(line 103) no Hoare annotation was computed. [2020-09-24 18:30:23,516 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L29(lines 29 145) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 166) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point L38(lines 38 137) no Hoare annotation was computed. [2020-09-24 18:30:23,517 INFO L271 CegarLoopResult]: At program point L129(lines 96 130) the Hoare annotation is: true [2020-09-24 18:30:23,517 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 166) the Hoare annotation is: (and (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |old(#valid)| |#valid|)) [2020-09-24 18:30:23,518 INFO L264 CegarLoopResult]: At program point L154(lines 24 155) the Hoare annotation is: (or (let ((.cse3 (div main_~main__index2~0 4294967296))) (and (let ((.cse2 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse0 (select .cse2 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* (div main_~main__index1~0 4294967296) (- 17179869184)))))) (<= .cse0 (let ((.cse1 (select .cse2 (+ (* main_~main__index2~0 4) |main_~#main__array~0.offset| (* .cse3 (- 17179869184)))))) (+ .cse1 (* 4294967296 (div (+ .cse0 (* .cse1 (- 1))) 4294967296))))))) (let ((.cse4 (+ main_~main__index2~0 1))) (<= (+ main_~main__index1~0 (* 4294967296 (div (+ (* main_~main__index1~0 (- 1)) (* (div .cse4 4294967296) 4294967296) 4294967296) 4294967296))) .cse4)) (<= main_~main__index2~0 (+ (* 4294967296 .cse3) 99998)))) (and (<= main_~main__loop_entered~0 (* 4294967296 (div main_~main__loop_entered~0 4294967296))) (<= 0 main_~main__loop_entered~0))) [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L55(lines 55 131) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L22(lines 22 160) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,518 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-4(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-5(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-6(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-7(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-8(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-9(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-10(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,519 INFO L268 CegarLoopResult]: For program point L14-11(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L14-12(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L14-13(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L14-14(line 14) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L48-2(lines 48 136) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L48-3(line 48) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L48-4(line 48) no Hoare annotation was computed. [2020-09-24 18:30:23,520 INFO L268 CegarLoopResult]: For program point L48-5(line 48) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point L106(lines 106 118) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point L48-6(line 48) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L264 CegarLoopResult]: At program point L90(lines 58 91) the Hoare annotation is: false [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 18:30:23,521 INFO L268 CegarLoopResult]: For program point L24(lines 24 155) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L268 CegarLoopResult]: For program point L58(lines 58 91) no Hoare annotation was computed. [2020-09-24 18:30:23,522 INFO L264 CegarLoopResult]: At program point L149(lines 27 150) the Hoare annotation is: false [2020-09-24 18:30:23,523 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 18:30:23,523 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 18:30:23,523 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 18:30:23,523 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-24 18:30:23,523 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-24 18:30:23,523 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 18:30:23,524 INFO L264 CegarLoopResult]: At program point L117(lines 97 126) the Hoare annotation is: (let ((.cse14 (div main_~main__index1~0 4294967296)) (.cse15 (div main_~main__index2~0 4294967296))) (let ((.cse12 (* 4294967296 .cse15)) (.cse13 (* 4294967296 .cse14))) (or (and (let ((.cse3 (select |#memory_int| |main_~#main__array~0.base|)) (.cse9 (* main_~main__index2~0 4)) (.cse10 (* .cse15 (- 17179869184)))) (let ((.cse1 (select .cse3 (+ .cse9 |main_~#main__array~0.offset| .cse10)))) (let ((.cse2 (* .cse1 (- 1))) (.cse4 (* main_~main__index1~0 4)) (.cse5 (* .cse14 (- 17179869184))) (.cse6 (+ .cse13 2147483647))) (or (and (let ((.cse0 (select .cse3 (+ .cse4 |main_~#main__array~0.offset| .cse5)))) (<= .cse0 (+ .cse1 (* 4294967296 (div (+ .cse0 .cse2) 4294967296))))) (<= main_~main__index1~0 .cse6)) (and (let ((.cse7 (select .cse3 (+ .cse4 |main_~#main__array~0.offset| .cse5 (- 17179869184)))) (.cse11 (+ .cse12 2147483647))) (or (and (<= .cse7 (let ((.cse8 (select .cse3 (+ .cse9 |main_~#main__array~0.offset| .cse10 (- 17179869184))))) (+ (* 4294967296 (div (+ (* .cse8 (- 1)) .cse7) 4294967296)) .cse8))) (< .cse11 main_~main__index2~0)) (and (<= .cse7 (+ .cse1 (* 4294967296 (div (+ .cse2 .cse7) 4294967296)))) (<= main_~main__index2~0 .cse11)))) (< .cse6 main_~main__index1~0)))))) (let ((.cse16 (+ main_~main__index2~0 1))) (<= (+ main_~main__index1~0 (* 4294967296 (div (+ (* main_~main__index1~0 (- 1)) (* (div .cse16 4294967296) 4294967296) 4294967296) 4294967296))) .cse16))) (<= (+ main_~main__index1~0 .cse12 1) (+ main_~main__index2~0 .cse13))))) [2020-09-24 18:30:23,524 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 18:30:23,524 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 18:30:23,524 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 18:30:23,524 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-24 18:30:23,524 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-24 18:30:23,525 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-24 18:30:23,525 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-24 18:30:23,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:30:23 BoogieIcfgContainer [2020-09-24 18:30:23,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:30:23,567 INFO L168 Benchmark]: Toolchain (without parser) took 29465.98 ms. Allocated memory was 143.1 MB in the beginning and 379.6 MB in the end (delta: 236.5 MB). Free memory was 100.3 MB in the beginning and 337.0 MB in the end (delta: -236.7 MB). Peak memory consumption was 248.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:23,568 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 143.1 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:30:23,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.85 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 180.7 MB in the end (delta: -81.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:23,570 INFO L168 Benchmark]: Boogie Preprocessor took 59.32 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 178.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:23,570 INFO L168 Benchmark]: RCFGBuilder took 552.26 ms. Allocated memory is still 201.9 MB. Free memory was 178.3 MB in the beginning and 154.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:23,571 INFO L168 Benchmark]: TraceAbstraction took 28362.76 ms. Allocated memory was 201.9 MB in the beginning and 379.6 MB in the end (delta: 177.7 MB). Free memory was 153.6 MB in the beginning and 337.0 MB in the end (delta: -183.4 MB). Peak memory consumption was 243.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:23,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 143.1 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 479.85 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 180.7 MB in the end (delta: -81.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.32 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 178.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 552.26 ms. Allocated memory is still 201.9 MB. Free memory was 178.3 MB in the beginning and 154.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28362.76 ms. Allocated memory was 201.9 MB in the beginning and 379.6 MB in the end (delta: 177.7 MB). Free memory was 153.6 MB in the beginning and 337.0 MB in the end (delta: -183.4 MB). Peak memory consumption was 243.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && 1 <= __tmp_1) && 1 <= __VERIFIER_assert__cond) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 24]: Loop Invariant [2020-09-24 18:30:23,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] * -1) / 4294967296) && main__index1 + 4294967296 * ((main__index1 * -1 + (main__index2 + 1) / 4294967296 * 4294967296 + 4294967296) / 4294967296) <= main__index2 + 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) || (main__loop_entered <= 4294967296 * (main__loop_entered / 4294967296) && 0 <= main__loop_entered) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 97]: Loop Invariant [2020-09-24 18:30:23,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 18:30:23,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] * -1) / 4294967296) && main__index1 <= 4294967296 * (main__index1 / 4294967296) + 2147483647) || (((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] <= 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] * -1 + unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184]) / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184 + -17179869184] && 4294967296 * (main__index2 / 4294967296) + 2147483647 < main__index2) || (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184] <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] * -1 + unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184 + -17179869184]) / 4294967296) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 2147483647)) && 4294967296 * (main__index1 / 4294967296) + 2147483647 < main__index1)) && main__index1 + 4294967296 * ((main__index1 * -1 + (main__index2 + 1) / 4294967296 * 4294967296 + 4294967296) / 4294967296) <= main__index2 + 1) || main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: ((((main__index1 + 4294967296 * ((main__index1 * -1 + (main__index2 + 1) / 4294967296 * 4294967296 + 4294967296) / 4294967296) <= main__index2 + 1 && 1 <= main____CPAchecker_TMP_0) && 1 <= __tmp_1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && 1 <= __VERIFIER_assert__cond) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && 1 <= main____CPAchecker_TMP_0) && main__loop_entered <= 4294967296 * (main__loop_entered / 4294967296)) && 0 <= main__loop_entered) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 108 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.0s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 696 SDtfs, 722 SDslu, 1217 SDs, 0 SdLazy, 1300 SolverSat, 32 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 240 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 551 HoareAnnotationTreeSize, 12 FomulaSimplifications, 515 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 682 FormulaSimplificationTreeSizeReductionInter, 7.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 398 ConstructedInterpolants, 0 QuantifiedInterpolants, 313431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 9/10 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...