/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:40:45,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:40:45,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:40:45,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:40:45,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:40:45,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:40:45,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:40:45,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:40:45,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:40:45,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:40:45,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:40:45,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:40:45,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:40:45,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:40:45,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:40:45,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:40:45,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:40:45,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:40:45,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:40:45,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:40:45,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:40:45,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:40:45,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:40:45,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:40:45,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:40:45,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:40:45,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:40:45,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:40:45,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:40:45,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:40:45,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:40:45,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:40:45,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:40:45,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:40:45,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:40:45,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:40:45,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:40:45,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:40:45,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:40:45,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:40:45,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:40:45,167 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 20:40:45,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:40:45,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:40:45,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:40:45,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:40:45,220 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:40:45,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:40:45,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:40:45,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:40:45,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:40:45,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:40:45,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:40:45,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:40:45,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:40:45,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:40:45,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:40:45,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:40:45,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:40:45,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:40:45,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:40:45,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:40:45,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:40:45,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:40:45,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:40:45,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:40:45,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:40:45,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:40:45,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:40:45,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:40:45,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:40:45,226 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:40:45,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:40:45,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:40:45,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:40:45,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:40:45,720 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:40:45,721 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-24 20:40:45,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492dc0ba2/452c4d1025ce4f158e1f59bf53c86030/FLAG8703f65d3 [2020-09-24 20:40:46,340 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:40:46,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-24 20:40:46,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492dc0ba2/452c4d1025ce4f158e1f59bf53c86030/FLAG8703f65d3 [2020-09-24 20:40:46,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492dc0ba2/452c4d1025ce4f158e1f59bf53c86030 [2020-09-24 20:40:46,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:40:46,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:40:46,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:40:46,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:40:46,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:40:46,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:40:46" (1/1) ... [2020-09-24 20:40:46,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eb96f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:46, skipping insertion in model container [2020-09-24 20:40:46,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:40:46" (1/1) ... [2020-09-24 20:40:46,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:40:46,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:40:47,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:40:47,153 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:40:47,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:40:47,285 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:40:47,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47 WrapperNode [2020-09-24 20:40:47,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:40:47,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:40:47,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:40:47,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:40:47,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... [2020-09-24 20:40:47,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:40:47,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:40:47,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:40:47,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:40:47,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:40:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:40:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:40:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:40:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-09-24 20:40:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-09-24 20:40:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:40:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:40:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:40:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:40:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-09-24 20:40:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:40:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-09-24 20:40:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:40:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:40:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:40:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:40:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:40:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:40:47,931 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:40:47,932 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-09-24 20:40:47,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:40:47 BoogieIcfgContainer [2020-09-24 20:40:47,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:40:47,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:40:47,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:40:47,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:40:47,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:40:46" (1/3) ... [2020-09-24 20:40:47,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129ab321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:40:47, skipping insertion in model container [2020-09-24 20:40:47,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:47" (2/3) ... [2020-09-24 20:40:47,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129ab321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:40:47, skipping insertion in model container [2020-09-24 20:40:47,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:40:47" (3/3) ... [2020-09-24 20:40:47,948 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-09-24 20:40:47,961 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:40:47,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:40:47,996 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:40:48,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:40:48,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:40:48,027 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:40:48,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:40:48,027 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:40:48,027 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:40:48,027 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:40:48,027 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:40:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-09-24 20:40:48,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 20:40:48,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:40:48,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:40:48,061 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:40:48,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:40:48,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times [2020-09-24 20:40:48,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:40:48,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640373317] [2020-09-24 20:40:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:40:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:48,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:48,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:48,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:48,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:48,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:40:48,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:40:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-09-24 20:40:48,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:40:48,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:40:48,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:40:48,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:40:48,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:40:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:48,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:48,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:48,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:40:48,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:40:48,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:40:48,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:40:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:40:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:40:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:40:48,891 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 20:40:48,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640373317] [2020-09-24 20:40:48,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:40:48,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:40:48,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554315909] [2020-09-24 20:40:48,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:40:48,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:40:48,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:40:48,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:40:48,920 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 6 states. [2020-09-24 20:40:49,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:40:49,406 INFO L93 Difference]: Finished difference Result 266 states and 324 transitions. [2020-09-24 20:40:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:40:49,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-09-24 20:40:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:40:49,423 INFO L225 Difference]: With dead ends: 266 [2020-09-24 20:40:49,423 INFO L226 Difference]: Without dead ends: 135 [2020-09-24 20:40:49,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:40:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-24 20:40:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-09-24 20:40:49,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-24 20:40:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-09-24 20:40:49,501 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 23 [2020-09-24 20:40:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:40:49,501 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-09-24 20:40:49,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:40:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-09-24 20:40:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-24 20:40:49,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:40:49,506 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, 1, 1, 1, 1] [2020-09-24 20:40:49,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:40:49,507 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:40:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:40:49,507 INFO L82 PathProgramCache]: Analyzing trace with hash 23578911, now seen corresponding path program 1 times [2020-09-24 20:40:49,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:40:49,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714077642] [2020-09-24 20:40:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:40:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:49,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:49,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:49,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:49,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:49,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:50,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:54,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:40:54,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:40:54,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:40:54,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:54,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:40:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:40:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 20:40:54,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 20:40:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:40:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:54,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:40:54,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:40:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:40:54,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:40:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:40:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:40:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:40:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:40:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:54,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:54,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:40:54,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:40:54,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:40:54,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:40:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:40:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:40:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:40:54,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:40:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:54,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:54,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:40:54,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:40:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:40:54,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:40:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:40:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:40:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:40:54,866 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 20:40:54,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714077642] [2020-09-24 20:40:54,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:40:54,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 20:40:54,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362996497] [2020-09-24 20:40:54,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:40:54,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:40:54,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:40:54,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:40:54,872 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 14 states. [2020-09-24 20:40:56,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:40:56,872 INFO L93 Difference]: Finished difference Result 444 states and 522 transitions. [2020-09-24 20:40:56,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 20:40:56,873 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-09-24 20:40:56,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:40:56,882 INFO L225 Difference]: With dead ends: 444 [2020-09-24 20:40:56,882 INFO L226 Difference]: Without dead ends: 366 [2020-09-24 20:40:56,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 20:40:56,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-09-24 20:40:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 212. [2020-09-24 20:40:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-24 20:40:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 245 transitions. [2020-09-24 20:40:56,936 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 245 transitions. Word has length 59 [2020-09-24 20:40:56,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:40:56,936 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 245 transitions. [2020-09-24 20:40:56,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:40:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 245 transitions. [2020-09-24 20:40:56,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 20:40:56,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:40:56,946 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:40:56,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:40:56,946 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:40:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:40:56,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1272166002, now seen corresponding path program 1 times [2020-09-24 20:40:56,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:40:56,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138142557] [2020-09-24 20:40:56,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:40:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:56,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:56,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:57,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:57,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:57,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:58,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:58,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:58,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:58,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:59,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:01,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:01,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 20:41:01,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 20:41:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-24 20:41:01,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:01,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:41:01,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:41:01,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 20:41:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:02,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:02,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:02,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:02,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:41:02,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:02,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:41:02,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:02,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:02,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:41:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:02,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:02,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:41:02,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:02,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:41:02,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:02,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:41:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:02,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:41:02,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:02,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:41:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:02,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:02,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 20:41:02,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:41:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:41:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:02,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138142557] [2020-09-24 20:41:02,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:02,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 20:41:02,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989051236] [2020-09-24 20:41:02,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 20:41:02,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:02,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 20:41:02,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:41:02,273 INFO L87 Difference]: Start difference. First operand 212 states and 245 transitions. Second operand 16 states. [2020-09-24 20:41:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:03,408 INFO L93 Difference]: Finished difference Result 420 states and 487 transitions. [2020-09-24 20:41:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 20:41:03,415 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 65 [2020-09-24 20:41:03,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:03,418 INFO L225 Difference]: With dead ends: 420 [2020-09-24 20:41:03,418 INFO L226 Difference]: Without dead ends: 250 [2020-09-24 20:41:03,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=1024, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 20:41:03,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-24 20:41:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 174. [2020-09-24 20:41:03,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-24 20:41:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 196 transitions. [2020-09-24 20:41:03,459 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 196 transitions. Word has length 65 [2020-09-24 20:41:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:03,460 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 196 transitions. [2020-09-24 20:41:03,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 20:41:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 196 transitions. [2020-09-24 20:41:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 20:41:03,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:03,463 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:41:03,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:41:03,463 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:03,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1668970121, now seen corresponding path program 1 times [2020-09-24 20:41:03,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:03,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675836936] [2020-09-24 20:41:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:03,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:03,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:03,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:04,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:08,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:08,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:41:08,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:41:08,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:41:08,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:41:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:41:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 20:41:08,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:08,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:08,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:08,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:08,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:41:08,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:08,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:41:08,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:08,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:41:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:08,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:08,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:08,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:41:08,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:08,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:41:08,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:41:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 20:41:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:41:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:08,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:08,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:08,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:08,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:08,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:41:08,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:41:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:41:08,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 20:41:08,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675836936] [2020-09-24 20:41:08,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:08,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:41:08,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095873743] [2020-09-24 20:41:08,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:41:08,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:08,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:41:08,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:41:08,671 INFO L87 Difference]: Start difference. First operand 174 states and 196 transitions. Second operand 10 states. [2020-09-24 20:41:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:09,310 INFO L93 Difference]: Finished difference Result 358 states and 409 transitions. [2020-09-24 20:41:09,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 20:41:09,311 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-24 20:41:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:09,315 INFO L225 Difference]: With dead ends: 358 [2020-09-24 20:41:09,316 INFO L226 Difference]: Without dead ends: 212 [2020-09-24 20:41:09,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:41:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-24 20:41:09,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 177. [2020-09-24 20:41:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-24 20:41:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 198 transitions. [2020-09-24 20:41:09,341 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 198 transitions. Word has length 71 [2020-09-24 20:41:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:09,343 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 198 transitions. [2020-09-24 20:41:09,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:41:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 198 transitions. [2020-09-24 20:41:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-24 20:41:09,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:09,346 INFO L422 BasicCegarLoop]: trace histogram [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, 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 20:41:09,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:41:09,347 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:09,347 INFO L82 PathProgramCache]: Analyzing trace with hash 928635750, now seen corresponding path program 1 times [2020-09-24 20:41:09,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:09,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839456911] [2020-09-24 20:41:09,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:09,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:10,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:11,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:14,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:14,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 20:41:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 20:41:14,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 20:41:14,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:14,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:41:14,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:41:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 20:41:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:14,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:14,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:14,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:41:14,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:14,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:41:14,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:14,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:14,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:14,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:41:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:14,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:14,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:41:14,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:41:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:41:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:41:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:14,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:41:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:14,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:14,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:14,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:14,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:41:14,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:41:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:41:14,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 20:41:14,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839456911] [2020-09-24 20:41:14,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:14,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 20:41:14,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889351026] [2020-09-24 20:41:14,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:41:14,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:14,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:41:14,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:41:14,644 INFO L87 Difference]: Start difference. First operand 177 states and 198 transitions. Second operand 15 states. [2020-09-24 20:41:15,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:15,651 INFO L93 Difference]: Finished difference Result 249 states and 280 transitions. [2020-09-24 20:41:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 20:41:15,651 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 77 [2020-09-24 20:41:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:15,658 INFO L225 Difference]: With dead ends: 249 [2020-09-24 20:41:15,658 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 20:41:15,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 20:41:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 20:41:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 173. [2020-09-24 20:41:15,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-09-24 20:41:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2020-09-24 20:41:15,680 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 77 [2020-09-24 20:41:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:15,680 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2020-09-24 20:41:15,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 20:41:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2020-09-24 20:41:15,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-24 20:41:15,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:15,682 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:41:15,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:41:15,683 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:15,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:15,683 INFO L82 PathProgramCache]: Analyzing trace with hash -537710077, now seen corresponding path program 1 times [2020-09-24 20:41:15,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:15,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622125470] [2020-09-24 20:41:15,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:15,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:15,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:16,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:16,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 20:41:16,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:41:16,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-09-24 20:41:16,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:41:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 20:41:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:41:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:16,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:16,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:16,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:41:16,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:41:16,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:16,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:16,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:16,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:41:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:16,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:16,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:16,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:41:16,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:16,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:41:16,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:41:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:41:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:16,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 20:41:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:16,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:16,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:16,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:16,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:16,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:41:16,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:16,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:16,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 20:41:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:16,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:16,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 20:41:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:16,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:16,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 20:41:16,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:16,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:41:16,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 20:41:16,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:16,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:16,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-24 20:41:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:16,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:16,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:16,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:16,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:41:16,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 20:41:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:16,555 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-24 20:41:16,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622125470] [2020-09-24 20:41:16,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:16,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 20:41:16,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502454185] [2020-09-24 20:41:16,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:41:16,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:16,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:41:16,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:41:16,557 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand 6 states. [2020-09-24 20:41:16,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:16,977 INFO L93 Difference]: Finished difference Result 324 states and 369 transitions. [2020-09-24 20:41:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:41:16,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-09-24 20:41:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:16,980 INFO L225 Difference]: With dead ends: 324 [2020-09-24 20:41:16,980 INFO L226 Difference]: Without dead ends: 211 [2020-09-24 20:41:16,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:41:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-09-24 20:41:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 177. [2020-09-24 20:41:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-24 20:41:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 195 transitions. [2020-09-24 20:41:16,993 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 195 transitions. Word has length 102 [2020-09-24 20:41:16,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:16,994 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 195 transitions. [2020-09-24 20:41:16,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:41:16,994 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 195 transitions. [2020-09-24 20:41:16,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 20:41:16,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:16,997 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:41:16,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:41:16,997 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:16,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1406282615, now seen corresponding path program 1 times [2020-09-24 20:41:16,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:16,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473081884] [2020-09-24 20:41:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:17,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:17,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:17,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:17,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:17,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:17,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:22,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 20:41:22,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:41:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:41:22,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:41:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:41:22,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 20:41:22,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:22,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:22,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:22,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:41:22,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:22,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:41:22,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:22,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:22,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:22,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:22,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:41:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:22,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:22,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 20:41:22,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:41:22,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:41:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:41:22,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:22,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:41:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:22,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:22,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:22,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:22,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:22,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 20:41:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:22,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:22,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 20:41:22,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:41:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 20:41:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:41:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:22,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:41:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:41:22,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:22,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:22,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 20:41:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 20:41:22,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473081884] [2020-09-24 20:41:22,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:22,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 20:41:22,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038418418] [2020-09-24 20:41:22,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:41:22,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:22,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:41:22,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:41:22,316 INFO L87 Difference]: Start difference. First operand 177 states and 195 transitions. Second operand 15 states. [2020-09-24 20:41:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:23,275 INFO L93 Difference]: Finished difference Result 288 states and 319 transitions. [2020-09-24 20:41:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 20:41:23,276 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-09-24 20:41:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:23,276 INFO L225 Difference]: With dead ends: 288 [2020-09-24 20:41:23,276 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 20:41:23,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=851, Unknown=0, NotChecked=0, Total=992 [2020-09-24 20:41:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 20:41:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 20:41:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 20:41:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 20:41:23,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2020-09-24 20:41:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:23,279 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 20:41:23,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 20:41:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 20:41:23,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 20:41:23,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:41:23,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 20:41:23,960 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-09-24 20:41:23,960 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 20:41:23,960 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-09-24 20:41:23,960 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-09-24 20:41:23,961 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-09-24 20:41:23,961 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-24 20:41:23,961 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-24 20:41:23,961 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-24 20:41:23,961 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (or (and (<= elem_exists_~size (+ |elem_exists_#in~size| elem_exists_~i~0)) (= elem_exists_~size |elem_exists_#in~size|)) (not (<= |elem_exists_#in~size| 0))) [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed. [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 20:41:23,962 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-24 20:41:23,963 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-24 20:41:23,963 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 20:41:23,963 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 20:41:23,963 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 20:41:23,963 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 20:41:23,963 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 20:41:23,963 INFO L264 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-24 20:41:23,963 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 20:41:23,964 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 20:41:23,965 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 20:41:23,965 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 20:41:23,965 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-09-24 20:41:23,965 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 20:41:23,965 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-09-24 20:41:23,965 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false [2020-09-24 20:41:23,966 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed. [2020-09-24 20:41:23,966 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed. [2020-09-24 20:41:23,966 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-09-24 20:41:23,966 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed. [2020-09-24 20:41:23,966 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed. [2020-09-24 20:41:23,966 INFO L264 CegarLoopResult]: At program point L44-5(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= 0 main_~n~0) (<= main_~n~0 0)) [2020-09-24 20:41:23,966 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-24 20:41:23,967 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2020-09-24 20:41:23,967 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed. [2020-09-24 20:41:23,967 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed. [2020-09-24 20:41:23,967 INFO L264 CegarLoopResult]: At program point L36-6(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= 0 main_~n~0) (<= main_~n~0 0)) [2020-09-24 20:41:23,967 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed. [2020-09-24 20:41:23,967 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-09-24 20:41:23,967 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-24 20:41:23,968 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-24 20:41:23,968 INFO L264 CegarLoopResult]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= 0 main_~n~0) (<= main_~n~0 0)) [2020-09-24 20:41:23,968 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2020-09-24 20:41:23,968 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 20:41:23,968 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 20:41:23,968 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed. [2020-09-24 20:41:23,969 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed. [2020-09-24 20:41:23,969 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed. [2020-09-24 20:41:23,969 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false [2020-09-24 20:41:23,969 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 20:41:23,969 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2020-09-24 20:41:23,969 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-24 20:41:23,969 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed. [2020-09-24 20:41:23,970 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false [2020-09-24 20:41:23,970 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 20:41:23,970 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-24 20:41:23,970 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-09-24 20:41:23,970 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false [2020-09-24 20:41:23,970 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 56) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-24 20:41:23,971 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-24 20:41:23,971 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed. [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-24 20:41:23,972 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (and (<= 0 main_~n~0) (<= main_~n~0 0)) [2020-09-24 20:41:23,972 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed. [2020-09-24 20:41:23,973 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-09-24 20:41:23,973 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed. [2020-09-24 20:41:23,973 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-24 20:41:23,974 INFO L264 CegarLoopResult]: At program point L40-5(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= 0 main_~n~0) (<= main_~n~0 0)) [2020-09-24 20:41:23,974 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed. [2020-09-24 20:41:23,974 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 20:41:23,974 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 20:41:23,974 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 20:41:23,974 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 20:41:23,975 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= 0 main_~n~0) (<= main_~n~0 0)) [2020-09-24 20:41:23,975 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-24 20:41:23,975 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed. [2020-09-24 20:41:23,975 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-24 20:41:23,975 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-24 20:41:23,976 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-09-24 20:41:23,977 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-24 20:41:23,977 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-24 20:41:23,977 INFO L264 CegarLoopResult]: At program point L50-5(lines 50 54) the Hoare annotation is: (or (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) (and (<= 1 main_~n~0) (<= main_~n~0 (+ main_~x~0 1)) (<= main_~n~0 1))) [2020-09-24 20:41:23,977 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed. [2020-09-24 20:41:23,977 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 20:41:23,978 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 20:41:23,979 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed. [2020-09-24 20:41:23,979 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 20:41:23,979 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed. [2020-09-24 20:41:23,979 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-24 20:41:23,979 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed. [2020-09-24 20:41:23,980 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: (let ((.cse0 (+ main_~x~0 1))) (and (<= 1 main_~n~0) (<= main_~n~0 .cse0) (<= main_~n~0 main_~y~0) (<= .cse0 main_~n~0) (<= main_~n~0 1))) [2020-09-24 20:41:23,980 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-24 20:41:23,980 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-24 20:41:23,980 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-24 20:41:23,980 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-24 20:41:23,980 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-24 20:41:23,980 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-24 20:41:24,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:24 BoogieIcfgContainer [2020-09-24 20:41:24,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:24,015 INFO L168 Benchmark]: Toolchain (without parser) took 37303.17 ms. Allocated memory was 116.9 MB in the beginning and 365.4 MB in the end (delta: 248.5 MB). Free memory was 75.2 MB in the beginning and 244.6 MB in the end (delta: -169.4 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:24,016 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 116.9 MB. Free memory was 92.4 MB in the beginning and 92.3 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB. [2020-09-24 20:41:24,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.05 ms. Allocated memory was 116.9 MB in the beginning and 164.1 MB in the end (delta: 47.2 MB). Free memory was 74.6 MB in the beginning and 150.0 MB in the end (delta: -75.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:24,018 INFO L168 Benchmark]: Boogie Preprocessor took 54.88 ms. Allocated memory is still 164.1 MB. Free memory was 150.0 MB in the beginning and 147.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:24,019 INFO L168 Benchmark]: RCFGBuilder took 596.59 ms. Allocated memory is still 164.1 MB. Free memory was 147.7 MB in the beginning and 119.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:24,020 INFO L168 Benchmark]: TraceAbstraction took 36071.98 ms. Allocated memory was 164.1 MB in the beginning and 365.4 MB in the end (delta: 201.3 MB). Free memory was 118.6 MB in the beginning and 244.6 MB in the end (delta: -126.0 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:24,026 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 116.9 MB. Free memory was 92.4 MB in the beginning and 92.3 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 567.05 ms. Allocated memory was 116.9 MB in the beginning and 164.1 MB in the end (delta: 47.2 MB). Free memory was 74.6 MB in the beginning and 150.0 MB in the end (delta: -75.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.88 ms. Allocated memory is still 164.1 MB. Free memory was 150.0 MB in the beginning and 147.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 596.59 ms. Allocated memory is still 164.1 MB. Free memory was 147.7 MB in the beginning and 119.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36071.98 ms. Allocated memory was 164.1 MB in the beginning and 365.4 MB in the end (delta: 201.3 MB). Free memory was 118.6 MB in the beginning and 244.6 MB in the end (delta: -126.0 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (n <= x && 0 <= n) && n <= 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (n <= x && 0 <= n) && n <= 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: (((1 <= n && n <= x + 1) && n <= y) && x + 1 <= n) && n <= 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (n <= x && n <= 0) || ((1 <= n && n <= x + 1) && n <= 1) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (n <= x && 0 <= n) && n <= 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (n <= x && 0 <= n) && n <= 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (size <= \old(size) + i && size == \old(size)) || !(\old(size) <= 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= n && n <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 750 SDtfs, 2252 SDslu, 3597 SDs, 0 SdLazy, 4209 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 360 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 76 PreInvPairs, 102 NumberOfFragments, 141 HoareAnnotationTreeSize, 76 FomulaSimplifications, 15396 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 22 FomulaSimplificationsInter, 930 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 27.8s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 495 ConstructedInterpolants, 0 QuantifiedInterpolants, 78324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 65/84 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...