/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 interpolation-heuristic=FIRST --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 -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:10:44,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:10:44,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:10:44,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:10:44,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:10:44,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:10:44,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:10:44,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:10:44,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:10:44,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:10:44,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:10:44,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:10:44,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:10:44,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:10:44,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:10:44,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:10:44,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:10:44,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:10:44,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:10:44,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:10:44,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:10:44,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:10:44,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:10:44,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:10:44,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:10:44,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:10:44,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:10:44,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:10:44,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:10:44,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:10:44,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:10:44,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:10:44,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:10:44,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:10:44,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:10:44,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:10:44,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:10:44,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:10:44,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:10:44,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:10:44,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:10:44,254 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 16:10:44,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:10:44,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:10:44,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:10:44,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:10:44,311 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:10:44,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:10:44,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:10:44,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:10:44,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:10:44,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:10:44,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:10:44,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:10:44,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:10:44,315 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:10:44,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:10:44,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:10:44,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:10:44,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:10:44,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:10:44,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:10:44,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:10:44,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:10:44,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:10:44,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:10:44,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:10:44,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:10:44,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:10:44,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:10:44,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:10:44,318 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:10:44,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:10:44,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:10:44,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:10:44,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:10:44,813 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:10:44,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-09-24 16:10:44,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7afb5741e/c727065521fe43edb84ca53044fa4764/FLAG58e28e693 [2020-09-24 16:10:45,440 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:10:45,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-09-24 16:10:45,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7afb5741e/c727065521fe43edb84ca53044fa4764/FLAG58e28e693 [2020-09-24 16:10:45,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7afb5741e/c727065521fe43edb84ca53044fa4764 [2020-09-24 16:10:45,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:10:45,862 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:10:45,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:45,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:10:45,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:10:45,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:45" (1/1) ... [2020-09-24 16:10:45,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528baabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:45, skipping insertion in model container [2020-09-24 16:10:45,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:45" (1/1) ... [2020-09-24 16:10:45,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:10:45,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:10:46,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:46,138 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:10:46,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:46,192 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:10:46,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46 WrapperNode [2020-09-24 16:10:46,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:46,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:10:46,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:10:46,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:10:46,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (1/1) ... [2020-09-24 16:10:46,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:10:46,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:10:46,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:10:46,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:10:46,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (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 16:10:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:10:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:10:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:10:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 16:10:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:10:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:10:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:10:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:10:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 16:10:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 16:10:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:10:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:10:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:10:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:10:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:10:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:10:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:10:46,765 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:10:46,766 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 16:10:46,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:46 BoogieIcfgContainer [2020-09-24 16:10:46,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:10:46,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:10:46,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:10:46,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:10:46,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:10:45" (1/3) ... [2020-09-24 16:10:46,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6629e1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:46, skipping insertion in model container [2020-09-24 16:10:46,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:46" (2/3) ... [2020-09-24 16:10:46,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6629e1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:46, skipping insertion in model container [2020-09-24 16:10:46,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:46" (3/3) ... [2020-09-24 16:10:46,781 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2020-09-24 16:10:46,792 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:10:46,802 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:10:46,822 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:10:46,851 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:10:46,851 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:10:46,852 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:10:46,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:10:46,852 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:10:46,852 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:10:46,852 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:10:46,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:10:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-09-24 16:10:46,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 16:10:46,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:46,886 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:10:46,886 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:46,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:46,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1727331883, now seen corresponding path program 1 times [2020-09-24 16:10:46,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:46,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390744717] [2020-09-24 16:10:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:47,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:47,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:47,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:47,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:47,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 16:10:47,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:47,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 16:10:47,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 16:10:47,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 16:10:47,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:10:47,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:47,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:47,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:47,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:47,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:47,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:47,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:47,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:47,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:47,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:47,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:47,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:47,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:47,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:10:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:47,364 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:47,364 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:47,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:47,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:47,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:47,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:47,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:47,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:47,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:47,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:47,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:47,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:47,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:47,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:47,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:47,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:47,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:47,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:47,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:10:47,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:10:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:10:47,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 16:10:47,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390744717] [2020-09-24 16:10:47,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:47,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:10:47,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860075754] [2020-09-24 16:10:47,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:10:47,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:47,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:10:47,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:10:47,527 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 9 states. [2020-09-24 16:10:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:48,052 INFO L93 Difference]: Finished difference Result 137 states and 170 transitions. [2020-09-24 16:10:48,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:10:48,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 16:10:48,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:48,068 INFO L225 Difference]: With dead ends: 137 [2020-09-24 16:10:48,069 INFO L226 Difference]: Without dead ends: 79 [2020-09-24 16:10:48,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:10:48,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-24 16:10:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2020-09-24 16:10:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 16:10:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2020-09-24 16:10:48,132 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 30 [2020-09-24 16:10:48,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:48,133 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2020-09-24 16:10:48,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:10:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2020-09-24 16:10:48,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 16:10:48,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:48,139 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:10:48,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:10:48,139 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:48,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1086220015, now seen corresponding path program 1 times [2020-09-24 16:10:48,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:48,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868510838] [2020-09-24 16:10:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 16:10:48,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:10:48,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 16:10:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:10:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:48,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:48,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:48,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:48,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:48,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:10:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:48,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:10:48,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:48,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:48,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:48,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:48,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,344 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:48,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:10:48,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:48,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:48,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:48,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 16:10:48,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868510838] [2020-09-24 16:10:48,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:48,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:10:48,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240021671] [2020-09-24 16:10:48,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:10:48,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:48,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:10:48,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:10:48,357 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 4 states. [2020-09-24 16:10:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:48,489 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2020-09-24 16:10:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 16:10:48,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-09-24 16:10:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:48,494 INFO L225 Difference]: With dead ends: 91 [2020-09-24 16:10:48,494 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 16:10:48,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 16:10:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 16:10:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2020-09-24 16:10:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 16:10:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-09-24 16:10:48,520 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 34 [2020-09-24 16:10:48,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:48,521 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-09-24 16:10:48,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:10:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-09-24 16:10:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 16:10:48,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:48,524 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-24 16:10:48,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:10:48,525 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:48,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:48,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1811286385, now seen corresponding path program 1 times [2020-09-24 16:10:48,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:48,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562040174] [2020-09-24 16:10:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 16:10:48,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -9 [2020-09-24 16:10:48,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 9 [2020-09-24 16:10:48,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 16:10:48,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 16:10:48,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:10:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 16:10:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 16:10:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:48,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:10:48,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:48,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:48,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:48,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:10:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:48,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:48,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:48,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:48,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:48,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:48,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:48,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:48,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:10:48,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:10:48,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:48,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:10:48,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:49,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:10:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:49,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:49,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:49,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:49,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:49,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:49,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:49,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:10:49,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:49,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:49,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:49,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:49,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 16:10:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:49,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:49,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:49,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:49,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:49,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:49,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:10:49,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 16:10:49,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562040174] [2020-09-24 16:10:49,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:49,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 16:10:49,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703066633] [2020-09-24 16:10:49,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:10:49,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:49,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:10:49,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:10:49,069 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 12 states. [2020-09-24 16:10:49,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:49,582 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2020-09-24 16:10:49,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:10:49,583 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2020-09-24 16:10:49,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:49,586 INFO L225 Difference]: With dead ends: 84 [2020-09-24 16:10:49,586 INFO L226 Difference]: Without dead ends: 82 [2020-09-24 16:10:49,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-24 16:10:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-24 16:10:49,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 59. [2020-09-24 16:10:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 16:10:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2020-09-24 16:10:49,605 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 52 [2020-09-24 16:10:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:49,608 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2020-09-24 16:10:49,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:10:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2020-09-24 16:10:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 16:10:49,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:49,611 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-24 16:10:49,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:10:49,612 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:49,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2082234165, now seen corresponding path program 1 times [2020-09-24 16:10:49,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:49,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8636799] [2020-09-24 16:10:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:50,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-24 16:10:50,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -15 [2020-09-24 16:10:50,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 15 [2020-09-24 16:10:50,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:50,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 16:10:50,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:50,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-24 16:10:50,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:50,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:10:50,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:10:50,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:10:50,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:51,102 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2020-09-24 16:10:51,410 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 61 [2020-09-24 16:10:52,240 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 82 [2020-09-24 16:10:52,854 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 70 [2020-09-24 16:11:24,833 WARN L193 SmtUtils]: Spent 31.89 s on a formula simplification. DAG size of input: 181 DAG size of output: 74 [2020-09-24 16:11:27,287 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 60 [2020-09-24 16:11:27,643 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 64 [2020-09-24 16:11:28,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:28,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:28,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:28,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:28,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:28,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:11:28,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:28,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:28,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:28,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:28,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:11:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:28,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:28,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:28,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:28,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:28,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:28,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:28,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:28,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:28,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:28,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:28,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:28,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:28,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:28,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:28,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:28,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:28,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:28,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:28,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:11:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:28,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:28,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:28,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:28,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:28,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:28,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:28,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:11:28,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:28,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:28,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:28,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:28,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 16:11:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:28,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:28,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:28,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:28,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:28,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:28,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:28,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 16:11:28,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:11:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:11:28,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 16:11:28,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8636799] [2020-09-24 16:11:28,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:11:28,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-24 16:11:28,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319674970] [2020-09-24 16:11:28,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 16:11:28,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:28,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 16:11:28,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=257, Unknown=1, NotChecked=0, Total=306 [2020-09-24 16:11:28,290 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 18 states. [2020-09-24 16:11:28,866 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-09-24 16:11:29,361 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-09-24 16:11:31,853 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 122 [2020-09-24 16:11:38,345 WARN L193 SmtUtils]: Spent 6.39 s on a formula simplification that was a NOOP. DAG size: 118 [2020-09-24 16:11:46,948 WARN L193 SmtUtils]: Spent 4.33 s on a formula simplification that was a NOOP. DAG size: 109 [2020-09-24 16:11:49,343 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 80 [2020-09-24 16:11:49,595 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-09-24 16:11:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:49,921 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2020-09-24 16:11:49,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 16:11:49,929 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2020-09-24 16:11:49,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:49,931 INFO L225 Difference]: With dead ends: 73 [2020-09-24 16:11:49,931 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 16:11:49,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 53.7s TimeCoverageRelationStatistics Valid=122, Invalid=747, Unknown=1, NotChecked=0, Total=870 [2020-09-24 16:11:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 16:11:49,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2020-09-24 16:11:49,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-24 16:11:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2020-09-24 16:11:49,955 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 56 [2020-09-24 16:11:49,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:49,955 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2020-09-24 16:11:49,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 16:11:49,956 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2020-09-24 16:11:49,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 16:11:49,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:49,961 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:49,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:11:49,961 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:49,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:49,962 INFO L82 PathProgramCache]: Analyzing trace with hash -261126320, now seen corresponding path program 1 times [2020-09-24 16:11:49,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:49,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668235478] [2020-09-24 16:11:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-24 16:11:50,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -15 [2020-09-24 16:11:50,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 15 [2020-09-24 16:11:50,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 16:11:50,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 16:11:50,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:11:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:11:50,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 16:11:50,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:50,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:50,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:50,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:50,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-24 16:11:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:50,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:50,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:50,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:50,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:50,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:50,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:50,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:50,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:50,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:50,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:50,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:11:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:50,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:50,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:50,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:50,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:50,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 16:11:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:50,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:50,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:50,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:50,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:50,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-24 16:11:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:50,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:50,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:50,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:50,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:50,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:50,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:11:50,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:50,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:50,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 16:11:50,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668235478] [2020-09-24 16:11:50,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:50,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 16:11:50,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767544078] [2020-09-24 16:11:50,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:11:50,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:50,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:11:50,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:11:50,450 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 10 states. [2020-09-24 16:11:55,898 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (div c_main_~index2~0 4294967296))) (let ((.cse0 (* .cse4 4294967296)) (.cse1 (* .cse4 (- 4294967296))) (.cse3 (* c_main_~index1~0 (- 1))) (.cse2 (* c_main_~index2~0 (- 1)))) (and (<= 0 (+ |c_main_#t~post4| (* 4294967296 (div (+ .cse0 (* (div (+ .cse1 (* |c_main_#t~post4| (- 1)) c_main_~index2~0 (- 1)) 4294967296) 4294967296) .cse2 4294967295) 4294967296)))) (<= 1 (+ (* 4294967296 (div (+ .cse0 (* (div (+ .cse1 c_main_~index2~0 .cse3) 4294967296) 4294967296) .cse2 4294967295) 4294967296)) c_main_~index1~0)) (<= 1 (+ (* 4294967296 (div (+ (* (div (+ c_main_~index2~0 .cse3 1) 4294967296) 4294967296) .cse2 4294967294) 4294967296)) c_main_~index1~0)) (<= (+ (* 4294967296 .cse4) c_main_~index1~0 1) (+ (* 4294967296 (div c_main_~index1~0 4294967296)) c_main_~index2~0))))) is different from false [2020-09-24 16:11:55,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:55,902 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2020-09-24 16:11:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 16:11:55,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-09-24 16:11:55,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:55,903 INFO L225 Difference]: With dead ends: 85 [2020-09-24 16:11:55,903 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:11:55,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=56, Invalid=289, Unknown=1, NotChecked=34, Total=380 [2020-09-24 16:11:55,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:11:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:11:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:11:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:11:55,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2020-09-24 16:11:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:55,905 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:11:55,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:11:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:11:55,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:11:55,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:11:55,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.