/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:10:43,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:10:43,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:10:43,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:10:43,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:10:43,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:10:43,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:10:43,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:10:43,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:10:43,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:10:43,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:10:43,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:10:43,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:10:43,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:10:43,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:10:43,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:10:43,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:10:43,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:10:43,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:10:43,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:10:43,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:10:43,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:10:43,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:10:43,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:10:43,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:10:43,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:10:43,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:10:43,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:10:43,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:10:43,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:10:43,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:10:43,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:10:43,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:10:43,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:10:43,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:10:43,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:10:43,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:10:43,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:10:43,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:10:43,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:10:43,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:10:43,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:10:43,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:10:43,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:10:43,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:10:43,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:10:43,878 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:10:43,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:10:43,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:10:43,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:10:43,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:10:43,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:10:43,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:10:43,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:10:43,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:10:43,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:10:43,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:10:43,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:10:43,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:10:43,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:10:43,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:10:43,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:10:43,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:10:43,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:10:43,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:10:43,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:10:43,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:10:43,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:10:43,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:10:43,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:10:43,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:10:43,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:10:44,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:10:44,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:10:44,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:10:44,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:10:44,395 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:10:44,396 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_11.c [2020-09-25 11:10:44,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3300a86b8/0d1e981975eb4c17a6a3fef9c9969cd1/FLAGa4fbe5c5a [2020-09-25 11:10:44,972 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:10:44,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_11.c [2020-09-25 11:10:44,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3300a86b8/0d1e981975eb4c17a6a3fef9c9969cd1/FLAGa4fbe5c5a [2020-09-25 11:10:45,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3300a86b8/0d1e981975eb4c17a6a3fef9c9969cd1 [2020-09-25 11:10:45,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:10:45,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:10:45,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:10:45,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:10:45,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:10:45,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45, skipping insertion in model container [2020-09-25 11:10:45,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:10:45,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:10:45,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:10:45,666 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:10:45,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:10:45,710 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:10:45,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45 WrapperNode [2020-09-25 11:10:45,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:10:45,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:10:45,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:10:45,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:10:45,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... [2020-09-25 11:10:45,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:10:45,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:10:45,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:10:45,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:10:45,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:10:45,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:10:45,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:10:45,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:10:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:10:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:10:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:10:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:10:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:10:46,361 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:10:46,361 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:10:46,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:10:46 BoogieIcfgContainer [2020-09-25 11:10:46,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:10:46,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:10:46,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:10:46,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:10:46,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:10:45" (1/3) ... [2020-09-25 11:10:46,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:10:46, skipping insertion in model container [2020-09-25 11:10:46,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:10:45" (2/3) ... [2020-09-25 11:10:46,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:10:46, skipping insertion in model container [2020-09-25 11:10:46,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:10:46" (3/3) ... [2020-09-25 11:10:46,377 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_11.c [2020-09-25 11:10:46,389 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:10:46,400 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:10:46,421 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:10:46,451 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:10:46,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:10:46,451 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:10:46,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:10:46,452 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:10:46,452 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:10:46,452 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:10:46,452 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:10:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-09-25 11:10:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 11:10:46,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:46,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:46,496 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:46,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1546178992, now seen corresponding path program 1 times [2020-09-25 11:10:46,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:46,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179295576] [2020-09-25 11:10:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:46,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:46,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:46,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:10:46,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:46,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 11:10:46,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:46,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 11:10:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:10:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:47,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:47,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:47,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:47,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:47,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:10:47,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:47,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:47,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:10:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:47,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179295576] [2020-09-25 11:10:47,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:47,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:47,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843765321] [2020-09-25 11:10:47,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:47,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:47,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:47,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:47,178 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-09-25 11:10:47,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:47,283 INFO L93 Difference]: Finished difference Result 279 states and 384 transitions. [2020-09-25 11:10:47,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:47,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-09-25 11:10:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:47,303 INFO L225 Difference]: With dead ends: 279 [2020-09-25 11:10:47,303 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 11:10:47,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 11:10:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2020-09-25 11:10:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-25 11:10:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2020-09-25 11:10:47,377 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 79 [2020-09-25 11:10:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:47,378 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2020-09-25 11:10:47,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2020-09-25 11:10:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 11:10:47,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:47,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:47,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:10:47,383 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:47,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:47,383 INFO L82 PathProgramCache]: Analyzing trace with hash 687152074, now seen corresponding path program 1 times [2020-09-25 11:10:47,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:47,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535314835] [2020-09-25 11:10:47,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:47,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:47,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:47,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 11:10:47,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:47,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 11:10:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:47,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 11:10:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:47,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:47,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:47,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:47,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:47,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:47,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:47,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:47,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:47,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:47,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535314835] [2020-09-25 11:10:47,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:47,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:47,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20990006] [2020-09-25 11:10:47,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:47,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:47,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:47,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:47,630 INFO L87 Difference]: Start difference. First operand 190 states and 252 transitions. Second operand 3 states. [2020-09-25 11:10:47,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:47,682 INFO L93 Difference]: Finished difference Result 466 states and 650 transitions. [2020-09-25 11:10:47,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:47,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-25 11:10:47,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:47,686 INFO L225 Difference]: With dead ends: 466 [2020-09-25 11:10:47,686 INFO L226 Difference]: Without dead ends: 325 [2020-09-25 11:10:47,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:47,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-25 11:10:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2020-09-25 11:10:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 11:10:47,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 442 transitions. [2020-09-25 11:10:47,717 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 442 transitions. Word has length 80 [2020-09-25 11:10:47,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:47,718 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 442 transitions. [2020-09-25 11:10:47,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:47,718 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 442 transitions. [2020-09-25 11:10:47,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 11:10:47,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:47,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:47,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:10:47,722 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:47,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:47,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1261830773, now seen corresponding path program 1 times [2020-09-25 11:10:47,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:47,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204873087] [2020-09-25 11:10:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:47,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:47,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:47,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 11:10:47,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:47,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 11:10:47,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:47,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 11:10:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:47,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:47,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:47,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:47,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:47,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:47,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:47,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:47,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204873087] [2020-09-25 11:10:47,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:47,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:47,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787561845] [2020-09-25 11:10:47,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:47,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:47,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:47,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:47,865 INFO L87 Difference]: Start difference. First operand 323 states and 442 transitions. Second operand 3 states. [2020-09-25 11:10:47,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:47,882 INFO L93 Difference]: Finished difference Result 397 states and 552 transitions. [2020-09-25 11:10:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:47,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-09-25 11:10:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:47,886 INFO L225 Difference]: With dead ends: 397 [2020-09-25 11:10:47,886 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 11:10:47,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:47,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 11:10:47,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 323. [2020-09-25 11:10:47,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 11:10:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 440 transitions. [2020-09-25 11:10:47,904 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 440 transitions. Word has length 80 [2020-09-25 11:10:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:47,905 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 440 transitions. [2020-09-25 11:10:47,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:47,905 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 440 transitions. [2020-09-25 11:10:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 11:10:47,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:47,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:47,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:10:47,909 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:47,909 INFO L82 PathProgramCache]: Analyzing trace with hash 397182858, now seen corresponding path program 1 times [2020-09-25 11:10:47,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:47,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444853572] [2020-09-25 11:10:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:47,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 11:10:48,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 11:10:48,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-25 11:10:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:48,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:48,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:48,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:48,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444853572] [2020-09-25 11:10:48,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:48,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:48,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672069215] [2020-09-25 11:10:48,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:48,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:48,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,088 INFO L87 Difference]: Start difference. First operand 323 states and 440 transitions. Second operand 3 states. [2020-09-25 11:10:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:48,114 INFO L93 Difference]: Finished difference Result 395 states and 546 transitions. [2020-09-25 11:10:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:48,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-25 11:10:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:48,119 INFO L225 Difference]: With dead ends: 395 [2020-09-25 11:10:48,119 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 11:10:48,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 11:10:48,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 323. [2020-09-25 11:10:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 11:10:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 438 transitions. [2020-09-25 11:10:48,142 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 438 transitions. Word has length 81 [2020-09-25 11:10:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:48,143 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 438 transitions. [2020-09-25 11:10:48,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 438 transitions. [2020-09-25 11:10:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 11:10:48,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:48,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:48,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:10:48,153 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:48,154 INFO L82 PathProgramCache]: Analyzing trace with hash -172878236, now seen corresponding path program 1 times [2020-09-25 11:10:48,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:48,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809231788] [2020-09-25 11:10:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 11:10:48,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 11:10:48,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-25 11:10:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:48,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:48,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:48,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809231788] [2020-09-25 11:10:48,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:48,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:48,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869968449] [2020-09-25 11:10:48,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:48,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:48,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:48,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,290 INFO L87 Difference]: Start difference. First operand 323 states and 438 transitions. Second operand 3 states. [2020-09-25 11:10:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:48,311 INFO L93 Difference]: Finished difference Result 859 states and 1200 transitions. [2020-09-25 11:10:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:48,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-09-25 11:10:48,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:48,315 INFO L225 Difference]: With dead ends: 859 [2020-09-25 11:10:48,316 INFO L226 Difference]: Without dead ends: 585 [2020-09-25 11:10:48,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-09-25 11:10:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 583. [2020-09-25 11:10:48,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 11:10:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 802 transitions. [2020-09-25 11:10:48,335 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 802 transitions. Word has length 81 [2020-09-25 11:10:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:48,336 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 802 transitions. [2020-09-25 11:10:48,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 802 transitions. [2020-09-25 11:10:48,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 11:10:48,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:48,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:48,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:10:48,339 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1064013698, now seen corresponding path program 1 times [2020-09-25 11:10:48,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:48,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205593586] [2020-09-25 11:10:48,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 11:10:48,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 11:10:48,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:48,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 11:10:48,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:48,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:48,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:10:48,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:48,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:48,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205593586] [2020-09-25 11:10:48,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:48,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:48,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961306814] [2020-09-25 11:10:48,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:48,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:48,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:48,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,465 INFO L87 Difference]: Start difference. First operand 583 states and 802 transitions. Second operand 3 states. [2020-09-25 11:10:48,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:48,503 INFO L93 Difference]: Finished difference Result 1627 states and 2276 transitions. [2020-09-25 11:10:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:48,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-25 11:10:48,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:48,510 INFO L225 Difference]: With dead ends: 1627 [2020-09-25 11:10:48,510 INFO L226 Difference]: Without dead ends: 1093 [2020-09-25 11:10:48,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-09-25 11:10:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1091. [2020-09-25 11:10:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-09-25 11:10:48,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1506 transitions. [2020-09-25 11:10:48,549 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1506 transitions. Word has length 82 [2020-09-25 11:10:48,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:48,551 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1506 transitions. [2020-09-25 11:10:48,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:48,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1506 transitions. [2020-09-25 11:10:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 11:10:48,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:48,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:48,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:10:48,559 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:48,559 INFO L82 PathProgramCache]: Analyzing trace with hash -637098359, now seen corresponding path program 1 times [2020-09-25 11:10:48,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:48,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854133066] [2020-09-25 11:10:48,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 11:10:48,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 11:10:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:48,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 11:10:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:48,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:48,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:48,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:48,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854133066] [2020-09-25 11:10:48,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:48,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:48,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903750006] [2020-09-25 11:10:48,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:48,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:48,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:48,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,700 INFO L87 Difference]: Start difference. First operand 1091 states and 1506 transitions. Second operand 3 states. [2020-09-25 11:10:48,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:48,740 INFO L93 Difference]: Finished difference Result 1343 states and 1876 transitions. [2020-09-25 11:10:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:48,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-09-25 11:10:48,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:48,750 INFO L225 Difference]: With dead ends: 1343 [2020-09-25 11:10:48,750 INFO L226 Difference]: Without dead ends: 1341 [2020-09-25 11:10:48,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2020-09-25 11:10:48,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1091. [2020-09-25 11:10:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-09-25 11:10:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1498 transitions. [2020-09-25 11:10:48,786 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1498 transitions. Word has length 82 [2020-09-25 11:10:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:48,787 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1498 transitions. [2020-09-25 11:10:48,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1498 transitions. [2020-09-25 11:10:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 11:10:48,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:48,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:48,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:10:48,789 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:48,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:48,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1659922654, now seen corresponding path program 1 times [2020-09-25 11:10:48,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:48,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930476544] [2020-09-25 11:10:48,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 11:10:48,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 11:10:48,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 11:10:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:48,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:48,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:48,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:48,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:48,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:48,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:48,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:48,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930476544] [2020-09-25 11:10:48,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:48,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:48,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467304861] [2020-09-25 11:10:48,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:48,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:48,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:48,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,921 INFO L87 Difference]: Start difference. First operand 1091 states and 1498 transitions. Second operand 3 states. [2020-09-25 11:10:48,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:48,952 INFO L93 Difference]: Finished difference Result 1335 states and 1852 transitions. [2020-09-25 11:10:48,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:48,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-09-25 11:10:48,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:48,959 INFO L225 Difference]: With dead ends: 1335 [2020-09-25 11:10:48,959 INFO L226 Difference]: Without dead ends: 1333 [2020-09-25 11:10:48,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-09-25 11:10:48,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1091. [2020-09-25 11:10:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-09-25 11:10:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1490 transitions. [2020-09-25 11:10:48,995 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1490 transitions. Word has length 83 [2020-09-25 11:10:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:48,996 INFO L479 AbstractCegarLoop]: Abstraction has 1091 states and 1490 transitions. [2020-09-25 11:10:48,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1490 transitions. [2020-09-25 11:10:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 11:10:48,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:48,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:48,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 11:10:48,999 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:48,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1375558424, now seen corresponding path program 1 times [2020-09-25 11:10:49,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:49,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169398639] [2020-09-25 11:10:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 11:10:49,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 11:10:49,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 11:10:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:49,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:49,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:49,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:49,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:49,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169398639] [2020-09-25 11:10:49,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:49,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:49,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481937177] [2020-09-25 11:10:49,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:49,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:49,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:49,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,132 INFO L87 Difference]: Start difference. First operand 1091 states and 1490 transitions. Second operand 3 states. [2020-09-25 11:10:49,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:49,178 INFO L93 Difference]: Finished difference Result 3127 states and 4308 transitions. [2020-09-25 11:10:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:49,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-09-25 11:10:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:49,189 INFO L225 Difference]: With dead ends: 3127 [2020-09-25 11:10:49,189 INFO L226 Difference]: Without dead ends: 2085 [2020-09-25 11:10:49,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-09-25 11:10:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2083. [2020-09-25 11:10:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-09-25 11:10:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2834 transitions. [2020-09-25 11:10:49,253 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2834 transitions. Word has length 83 [2020-09-25 11:10:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:49,253 INFO L479 AbstractCegarLoop]: Abstraction has 2083 states and 2834 transitions. [2020-09-25 11:10:49,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2834 transitions. [2020-09-25 11:10:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-25 11:10:49,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:49,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:49,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 11:10:49,256 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:49,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:49,257 INFO L82 PathProgramCache]: Analyzing trace with hash -146869603, now seen corresponding path program 1 times [2020-09-25 11:10:49,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:49,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811563371] [2020-09-25 11:10:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 11:10:49,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 11:10:49,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 11:10:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:49,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:49,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:49,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:49,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:49,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:49,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811563371] [2020-09-25 11:10:49,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:49,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:49,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948224715] [2020-09-25 11:10:49,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:49,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:49,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:49,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,370 INFO L87 Difference]: Start difference. First operand 2083 states and 2834 transitions. Second operand 3 states. [2020-09-25 11:10:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:49,398 INFO L93 Difference]: Finished difference Result 2535 states and 3476 transitions. [2020-09-25 11:10:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:49,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-09-25 11:10:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:49,409 INFO L225 Difference]: With dead ends: 2535 [2020-09-25 11:10:49,410 INFO L226 Difference]: Without dead ends: 2533 [2020-09-25 11:10:49,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2020-09-25 11:10:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2083. [2020-09-25 11:10:49,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-09-25 11:10:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2818 transitions. [2020-09-25 11:10:49,462 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2818 transitions. Word has length 84 [2020-09-25 11:10:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:49,463 INFO L479 AbstractCegarLoop]: Abstraction has 2083 states and 2818 transitions. [2020-09-25 11:10:49,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:49,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2818 transitions. [2020-09-25 11:10:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-25 11:10:49,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:49,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:49,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 11:10:49,466 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:49,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:49,466 INFO L82 PathProgramCache]: Analyzing trace with hash -307116750, now seen corresponding path program 1 times [2020-09-25 11:10:49,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:49,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795248872] [2020-09-25 11:10:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 11:10:49,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 11:10:49,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 11:10:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:49,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:49,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:49,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:49,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795248872] [2020-09-25 11:10:49,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:49,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:49,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217688692] [2020-09-25 11:10:49,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:49,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:49,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:49,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,565 INFO L87 Difference]: Start difference. First operand 2083 states and 2818 transitions. Second operand 3 states. [2020-09-25 11:10:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:49,629 INFO L93 Difference]: Finished difference Result 6055 states and 8228 transitions. [2020-09-25 11:10:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:49,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-09-25 11:10:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:49,649 INFO L225 Difference]: With dead ends: 6055 [2020-09-25 11:10:49,649 INFO L226 Difference]: Without dead ends: 4021 [2020-09-25 11:10:49,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2020-09-25 11:10:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 4019. [2020-09-25 11:10:49,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-09-25 11:10:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5394 transitions. [2020-09-25 11:10:49,776 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5394 transitions. Word has length 84 [2020-09-25 11:10:49,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:49,777 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 5394 transitions. [2020-09-25 11:10:49,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:49,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5394 transitions. [2020-09-25 11:10:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 11:10:49,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:49,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:49,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 11:10:49,783 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:49,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:49,783 INFO L82 PathProgramCache]: Analyzing trace with hash -322854350, now seen corresponding path program 1 times [2020-09-25 11:10:49,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:49,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491461648] [2020-09-25 11:10:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 11:10:49,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 11:10:49,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:10:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:49,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:49,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:49,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:49,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:49,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:49,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:49,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:49,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:49,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:49,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:49,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491461648] [2020-09-25 11:10:49,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:49,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:49,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505644013] [2020-09-25 11:10:49,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:49,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:49,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:49,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,892 INFO L87 Difference]: Start difference. First operand 4019 states and 5394 transitions. Second operand 3 states. [2020-09-25 11:10:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:49,938 INFO L93 Difference]: Finished difference Result 4855 states and 6548 transitions. [2020-09-25 11:10:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:49,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-09-25 11:10:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:49,958 INFO L225 Difference]: With dead ends: 4855 [2020-09-25 11:10:49,959 INFO L226 Difference]: Without dead ends: 4853 [2020-09-25 11:10:49,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2020-09-25 11:10:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4019. [2020-09-25 11:10:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-09-25 11:10:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5362 transitions. [2020-09-25 11:10:50,054 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5362 transitions. Word has length 85 [2020-09-25 11:10:50,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:50,055 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 5362 transitions. [2020-09-25 11:10:50,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:50,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5362 transitions. [2020-09-25 11:10:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 11:10:50,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:50,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:50,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 11:10:50,059 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:50,060 INFO L82 PathProgramCache]: Analyzing trace with hash -930439220, now seen corresponding path program 1 times [2020-09-25 11:10:50,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:50,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548934795] [2020-09-25 11:10:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:50,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:50,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:50,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 11:10:50,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:50,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 11:10:50,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:50,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:50,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:50,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:10:50,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:50,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:50,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:50,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:50,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:50,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:50,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:50,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:50,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:50,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:50,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548934795] [2020-09-25 11:10:50,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:50,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:50,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830751706] [2020-09-25 11:10:50,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:50,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:50,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:50,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:50,159 INFO L87 Difference]: Start difference. First operand 4019 states and 5362 transitions. Second operand 3 states. [2020-09-25 11:10:50,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:50,254 INFO L93 Difference]: Finished difference Result 11767 states and 15732 transitions. [2020-09-25 11:10:50,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:50,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-09-25 11:10:50,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:50,290 INFO L225 Difference]: With dead ends: 11767 [2020-09-25 11:10:50,290 INFO L226 Difference]: Without dead ends: 7797 [2020-09-25 11:10:50,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:50,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7797 states. [2020-09-25 11:10:50,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7797 to 7795. [2020-09-25 11:10:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7795 states. [2020-09-25 11:10:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7795 states to 7795 states and 10290 transitions. [2020-09-25 11:10:50,517 INFO L78 Accepts]: Start accepts. Automaton has 7795 states and 10290 transitions. Word has length 85 [2020-09-25 11:10:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:50,517 INFO L479 AbstractCegarLoop]: Abstraction has 7795 states and 10290 transitions. [2020-09-25 11:10:50,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7795 states and 10290 transitions. [2020-09-25 11:10:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 11:10:50,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:50,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:50,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 11:10:50,527 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:50,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:50,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1483413839, now seen corresponding path program 1 times [2020-09-25 11:10:50,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:50,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862397398] [2020-09-25 11:10:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:50,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:50,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 11:10:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 11:10:50,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:50,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:10:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:50,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:50,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:10:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:50,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862397398] [2020-09-25 11:10:50,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:50,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:50,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918777490] [2020-09-25 11:10:50,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:50,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:50,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:50,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:50,646 INFO L87 Difference]: Start difference. First operand 7795 states and 10290 transitions. Second operand 3 states. [2020-09-25 11:10:50,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:50,716 INFO L93 Difference]: Finished difference Result 9335 states and 12340 transitions. [2020-09-25 11:10:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:50,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-09-25 11:10:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:50,756 INFO L225 Difference]: With dead ends: 9335 [2020-09-25 11:10:50,757 INFO L226 Difference]: Without dead ends: 9333 [2020-09-25 11:10:50,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9333 states. [2020-09-25 11:10:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9333 to 7795. [2020-09-25 11:10:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7795 states. [2020-09-25 11:10:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7795 states to 7795 states and 10226 transitions. [2020-09-25 11:10:50,928 INFO L78 Accepts]: Start accepts. Automaton has 7795 states and 10226 transitions. Word has length 86 [2020-09-25 11:10:50,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:50,929 INFO L479 AbstractCegarLoop]: Abstraction has 7795 states and 10226 transitions. [2020-09-25 11:10:50,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 7795 states and 10226 transitions. [2020-09-25 11:10:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 11:10:50,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:50,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:50,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 11:10:50,936 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:50,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:50,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1221401062, now seen corresponding path program 1 times [2020-09-25 11:10:50,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:50,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620104076] [2020-09-25 11:10:50,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:50,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:51,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:51,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 11:10:51,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:51,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 11:10:51,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:51,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:10:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:51,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:51,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:51,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:51,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:51,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:51,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:51,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:51,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:51,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620104076] [2020-09-25 11:10:51,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:51,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:51,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712943581] [2020-09-25 11:10:51,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:51,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:51,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:51,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:51,097 INFO L87 Difference]: Start difference. First operand 7795 states and 10226 transitions. Second operand 3 states. [2020-09-25 11:10:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:51,217 INFO L93 Difference]: Finished difference Result 22903 states and 30068 transitions. [2020-09-25 11:10:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:51,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-09-25 11:10:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:51,246 INFO L225 Difference]: With dead ends: 22903 [2020-09-25 11:10:51,246 INFO L226 Difference]: Without dead ends: 15157 [2020-09-25 11:10:51,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2020-09-25 11:10:51,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 15155. [2020-09-25 11:10:51,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15155 states. [2020-09-25 11:10:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15155 states to 15155 states and 19634 transitions. [2020-09-25 11:10:51,526 INFO L78 Accepts]: Start accepts. Automaton has 15155 states and 19634 transitions. Word has length 86 [2020-09-25 11:10:51,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:51,526 INFO L479 AbstractCegarLoop]: Abstraction has 15155 states and 19634 transitions. [2020-09-25 11:10:51,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 15155 states and 19634 transitions. [2020-09-25 11:10:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 11:10:51,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:51,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:51,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 11:10:51,536 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:51,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:51,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1193948038, now seen corresponding path program 1 times [2020-09-25 11:10:51,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:51,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763366685] [2020-09-25 11:10:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:51,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 11:10:51,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:10:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:51,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:51,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:51,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:51,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:51,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:51,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:51,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:51,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763366685] [2020-09-25 11:10:51,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:51,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:51,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768454012] [2020-09-25 11:10:51,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:51,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:51,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:51,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:51,655 INFO L87 Difference]: Start difference. First operand 15155 states and 19634 transitions. Second operand 3 states. [2020-09-25 11:10:51,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:51,845 INFO L93 Difference]: Finished difference Result 17975 states and 23220 transitions. [2020-09-25 11:10:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:51,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-09-25 11:10:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:51,878 INFO L225 Difference]: With dead ends: 17975 [2020-09-25 11:10:51,878 INFO L226 Difference]: Without dead ends: 17973 [2020-09-25 11:10:51,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17973 states. [2020-09-25 11:10:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17973 to 15155. [2020-09-25 11:10:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15155 states. [2020-09-25 11:10:52,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15155 states to 15155 states and 19506 transitions. [2020-09-25 11:10:52,151 INFO L78 Accepts]: Start accepts. Automaton has 15155 states and 19506 transitions. Word has length 87 [2020-09-25 11:10:52,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:52,151 INFO L479 AbstractCegarLoop]: Abstraction has 15155 states and 19506 transitions. [2020-09-25 11:10:52,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:52,151 INFO L276 IsEmpty]: Start isEmpty. Operand 15155 states and 19506 transitions. [2020-09-25 11:10:52,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 11:10:52,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:52,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:52,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 11:10:52,162 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:52,162 INFO L82 PathProgramCache]: Analyzing trace with hash -791026560, now seen corresponding path program 1 times [2020-09-25 11:10:52,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:52,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398867616] [2020-09-25 11:10:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:52,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:52,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 11:10:52,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 11:10:52,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:52,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:10:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:52,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:52,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:52,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:52,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:52,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:52,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:52,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:52,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:52,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:52,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398867616] [2020-09-25 11:10:52,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:52,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:52,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795716468] [2020-09-25 11:10:52,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:52,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:52,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:52,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:52,266 INFO L87 Difference]: Start difference. First operand 15155 states and 19506 transitions. Second operand 3 states. [2020-09-25 11:10:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:52,577 INFO L93 Difference]: Finished difference Result 44599 states and 57396 transitions. [2020-09-25 11:10:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:52,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-09-25 11:10:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:52,648 INFO L225 Difference]: With dead ends: 44599 [2020-09-25 11:10:52,648 INFO L226 Difference]: Without dead ends: 29493 [2020-09-25 11:10:52,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:52,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29493 states. [2020-09-25 11:10:53,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29493 to 29491. [2020-09-25 11:10:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29491 states. [2020-09-25 11:10:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29491 states to 29491 states and 37426 transitions. [2020-09-25 11:10:53,987 INFO L78 Accepts]: Start accepts. Automaton has 29491 states and 37426 transitions. Word has length 87 [2020-09-25 11:10:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:53,987 INFO L479 AbstractCegarLoop]: Abstraction has 29491 states and 37426 transitions. [2020-09-25 11:10:53,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 29491 states and 37426 transitions. [2020-09-25 11:10:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 11:10:54,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:54,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:54,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 11:10:54,005 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:54,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1707179323, now seen corresponding path program 1 times [2020-09-25 11:10:54,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:54,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563152875] [2020-09-25 11:10:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:54,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:54,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 11:10:54,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:54,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 11:10:54,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:54,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:54,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:10:54,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:10:54,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:54,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:54,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:54,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:54,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:54,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:54,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563152875] [2020-09-25 11:10:54,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:54,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:54,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127580089] [2020-09-25 11:10:54,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:54,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:54,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:54,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:54,100 INFO L87 Difference]: Start difference. First operand 29491 states and 37426 transitions. Second operand 3 states. [2020-09-25 11:10:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:54,330 INFO L93 Difference]: Finished difference Result 34615 states and 43572 transitions. [2020-09-25 11:10:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:54,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-09-25 11:10:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:54,410 INFO L225 Difference]: With dead ends: 34615 [2020-09-25 11:10:54,410 INFO L226 Difference]: Without dead ends: 34613 [2020-09-25 11:10:54,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34613 states. [2020-09-25 11:10:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34613 to 29491. [2020-09-25 11:10:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29491 states. [2020-09-25 11:10:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29491 states to 29491 states and 37170 transitions. [2020-09-25 11:10:55,082 INFO L78 Accepts]: Start accepts. Automaton has 29491 states and 37170 transitions. Word has length 88 [2020-09-25 11:10:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:55,083 INFO L479 AbstractCegarLoop]: Abstraction has 29491 states and 37170 transitions. [2020-09-25 11:10:55,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 29491 states and 37170 transitions. [2020-09-25 11:10:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 11:10:55,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:55,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:55,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 11:10:55,101 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:55,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:55,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1248226970, now seen corresponding path program 1 times [2020-09-25 11:10:55,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:55,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629866528] [2020-09-25 11:10:55,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:55,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:55,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 11:10:55,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 11:10:55,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:55,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:10:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:55,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:10:55,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:55,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:55,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:55,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:55,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:55,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:55,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:55,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:55,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:55,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629866528] [2020-09-25 11:10:55,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:55,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:55,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624828049] [2020-09-25 11:10:55,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:55,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:55,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:55,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:55,208 INFO L87 Difference]: Start difference. First operand 29491 states and 37170 transitions. Second operand 3 states. [2020-09-25 11:10:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:55,561 INFO L93 Difference]: Finished difference Result 86839 states and 109364 transitions. [2020-09-25 11:10:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:55,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-09-25 11:10:55,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:55,660 INFO L225 Difference]: With dead ends: 86839 [2020-09-25 11:10:55,660 INFO L226 Difference]: Without dead ends: 57397 [2020-09-25 11:10:55,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57397 states. [2020-09-25 11:10:56,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57397 to 57395. [2020-09-25 11:10:56,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57395 states. [2020-09-25 11:10:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57395 states to 57395 states and 71218 transitions. [2020-09-25 11:10:56,784 INFO L78 Accepts]: Start accepts. Automaton has 57395 states and 71218 transitions. Word has length 88 [2020-09-25 11:10:56,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:10:56,785 INFO L479 AbstractCegarLoop]: Abstraction has 57395 states and 71218 transitions. [2020-09-25 11:10:56,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:10:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 57395 states and 71218 transitions. [2020-09-25 11:10:56,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 11:10:56,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:10:56,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:10:56,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 11:10:56,816 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:10:56,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:10:56,816 INFO L82 PathProgramCache]: Analyzing trace with hash 40577332, now seen corresponding path program 1 times [2020-09-25 11:10:56,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:10:56,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111837062] [2020-09-25 11:10:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:10:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:56,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:56,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:56,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 11:10:56,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:56,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 11:10:56,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:56,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:56,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:10:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:10:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:10:56,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:56,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:10:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:10:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:10:56,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:10:56,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:10:56,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:10:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:10:56,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:10:56,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:10:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:10:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:10:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:10:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:10:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:10:56,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111837062] [2020-09-25 11:10:56,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:10:56,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:10:56,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846735572] [2020-09-25 11:10:56,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:10:56,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:10:56,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:10:56,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:56,923 INFO L87 Difference]: Start difference. First operand 57395 states and 71218 transitions. Second operand 3 states. [2020-09-25 11:10:58,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:10:58,647 INFO L93 Difference]: Finished difference Result 169015 states and 209460 transitions. [2020-09-25 11:10:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:10:58,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-09-25 11:10:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:10:58,769 INFO L225 Difference]: With dead ends: 169015 [2020-09-25 11:10:58,769 INFO L226 Difference]: Without dead ends: 85301 [2020-09-25 11:10:58,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:10:59,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85301 states. [2020-09-25 11:11:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85301 to 85299. [2020-09-25 11:11:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85299 states. [2020-09-25 11:11:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85299 states to 85299 states and 103218 transitions. [2020-09-25 11:11:00,606 INFO L78 Accepts]: Start accepts. Automaton has 85299 states and 103218 transitions. Word has length 89 [2020-09-25 11:11:00,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:00,606 INFO L479 AbstractCegarLoop]: Abstraction has 85299 states and 103218 transitions. [2020-09-25 11:11:00,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:11:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 85299 states and 103218 transitions. [2020-09-25 11:11:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 11:11:00,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:00,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:11:00,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 11:11:00,661 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:00,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:00,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1447813926, now seen corresponding path program 1 times [2020-09-25 11:11:00,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:00,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608954781] [2020-09-25 11:11:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:00,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:00,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:00,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 11:11:00,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 11:11:00,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:00,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:11:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:11:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:11:00,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:00,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:00,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:00,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:11:00,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:11:00,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:00,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:00,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:11:00,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608954781] [2020-09-25 11:11:00,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:11:00,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:11:00,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760907620] [2020-09-25 11:11:00,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:11:00,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:00,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:11:00,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:11:00,761 INFO L87 Difference]: Start difference. First operand 85299 states and 103218 transitions. Second operand 3 states. [2020-09-25 11:11:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:01,766 INFO L93 Difference]: Finished difference Result 94519 states and 112948 transitions. [2020-09-25 11:11:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:11:01,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-09-25 11:11:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:01,846 INFO L225 Difference]: With dead ends: 94519 [2020-09-25 11:11:01,846 INFO L226 Difference]: Without dead ends: 66613 [2020-09-25 11:11:01,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:11:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66613 states. [2020-09-25 11:11:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66613 to 57395. [2020-09-25 11:11:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57395 states. [2020-09-25 11:11:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57395 states to 57395 states and 68658 transitions. [2020-09-25 11:11:02,659 INFO L78 Accepts]: Start accepts. Automaton has 57395 states and 68658 transitions. Word has length 89 [2020-09-25 11:11:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:02,660 INFO L479 AbstractCegarLoop]: Abstraction has 57395 states and 68658 transitions. [2020-09-25 11:11:02,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:11:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand 57395 states and 68658 transitions. [2020-09-25 11:11:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 11:11:02,677 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:02,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:11:02,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 11:11:02,678 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:02,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1997420839, now seen corresponding path program 1 times [2020-09-25 11:11:02,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:02,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142153054] [2020-09-25 11:11:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:04,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:04,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:04,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 11:11:04,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1366 [2020-09-25 11:11:04,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:04,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:04,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 11:11:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:11:04,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:04,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:04,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:04,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:04,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:11:04,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:04,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:11:04,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:04,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:04,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:11:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:11:04,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142153054] [2020-09-25 11:11:04,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:11:04,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:11:04,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629505349] [2020-09-25 11:11:04,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:11:04,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:04,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:11:04,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:11:04,086 INFO L87 Difference]: Start difference. First operand 57395 states and 68658 transitions. Second operand 3 states. [2020-09-25 11:11:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:04,317 INFO L93 Difference]: Finished difference Result 57395 states and 68658 transitions. [2020-09-25 11:11:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:11:04,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-09-25 11:11:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:04,319 INFO L225 Difference]: With dead ends: 57395 [2020-09-25 11:11:04,319 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:11:04,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:11:04,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:11:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:11:04,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:11:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:11:04,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2020-09-25 11:11:04,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:04,366 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:11:04,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:11:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:11:04,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:11:04,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 11:11:04,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:11:04,400 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 11:11:04,400 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:11:04,401 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:11:04,401 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 11:11:04,401 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:11:04,401 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:11:04,401 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 177) no Hoare annotation was computed. [2020-09-25 11:11:04,401 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-25 11:11:04,401 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 11:11:04,402 INFO L268 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-09-25 11:11:04,402 INFO L264 CegarLoopResult]: At program point L168-1(lines 5 177) the Hoare annotation is: false [2020-09-25 11:11:04,402 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 11:11:04,402 INFO L268 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-09-25 11:11:04,403 INFO L268 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-09-25 11:11:04,403 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-09-25 11:11:04,403 INFO L268 CegarLoopResult]: For program point L152-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,403 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 11:11:04,403 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L103-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L87-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 11:11:04,404 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 177) no Hoare annotation was computed. [2020-09-25 11:11:04,405 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-25 11:11:04,405 INFO L268 CegarLoopResult]: For program point L137-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,405 INFO L268 CegarLoopResult]: For program point L71(lines 71 73) no Hoare annotation was computed. [2020-09-25 11:11:04,405 INFO L268 CegarLoopResult]: For program point L71-2(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,406 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-25 11:11:04,406 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-25 11:11:04,406 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 11:11:04,406 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 11:11:04,406 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 11:11:04,406 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-25 11:11:04,407 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 11:11:04,407 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 11:11:04,407 INFO L268 CegarLoopResult]: For program point L122-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,407 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-25 11:11:04,407 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 11:11:04,407 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 11:11:04,408 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-09-25 11:11:04,408 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 11:11:04,408 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 11:11:04,408 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 11:11:04,408 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 11:11:04,408 INFO L271 CegarLoopResult]: At program point L173(lines 5 177) the Hoare annotation is: true [2020-09-25 11:11:04,409 INFO L268 CegarLoopResult]: For program point L107-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,409 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-25 11:11:04,409 INFO L268 CegarLoopResult]: For program point L157-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,410 INFO L268 CegarLoopResult]: For program point L91-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,410 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 11:11:04,410 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-25 11:11:04,410 INFO L268 CegarLoopResult]: For program point L75-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,410 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L142-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-25 11:11:04,411 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L43-1(line 43) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L43-2(line 43) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 11:11:04,412 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L44(lines 44 46) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L127-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-09-25 11:11:04,413 INFO L268 CegarLoopResult]: For program point L111-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L95-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L79-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 11:11:04,414 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-09-25 11:11:04,415 INFO L268 CegarLoopResult]: For program point L162-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,415 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 11:11:04,415 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-25 11:11:04,416 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-25 11:11:04,416 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 11:11:04,416 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 177) the Hoare annotation is: true [2020-09-25 11:11:04,416 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 11:11:04,416 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-25 11:11:04,416 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 11:11:04,416 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L147-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-25 11:11:04,417 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L132-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L99-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 11:11:04,418 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 11:11:04,419 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 11:11:04,419 INFO L268 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-09-25 11:11:04,419 INFO L268 CegarLoopResult]: For program point L83-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,419 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-25 11:11:04,419 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L117-1(lines 42 172) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 11:11:04,420 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 11:11:04,421 INFO L271 CegarLoopResult]: At program point L167-1(lines 42 172) the Hoare annotation is: true [2020-09-25 11:11:04,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:11:04 BoogieIcfgContainer [2020-09-25 11:11:04,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:11:04,447 INFO L168 Benchmark]: Toolchain (without parser) took 19130.37 ms. Allocated memory was 138.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 101.1 MB in the beginning and 924.3 MB in the end (delta: -823.2 MB). Peak memory consumption was 361.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:11:04,449 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 11:11:04,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.11 ms. Allocated memory is still 138.4 MB. Free memory was 100.4 MB in the beginning and 89.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:11:04,451 INFO L168 Benchmark]: Boogie Preprocessor took 131.06 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 89.6 MB in the beginning and 178.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:11:04,451 INFO L168 Benchmark]: RCFGBuilder took 524.67 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 152.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:11:04,452 INFO L168 Benchmark]: TraceAbstraction took 18066.10 ms. Allocated memory was 201.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 152.2 MB in the beginning and 924.3 MB in the end (delta: -772.1 MB). Peak memory consumption was 349.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:11:04,456 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 399.11 ms. Allocated memory is still 138.4 MB. Free memory was 100.4 MB in the beginning and 89.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.06 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 89.6 MB in the beginning and 178.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 524.67 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 152.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18066.10 ms. Allocated memory was 201.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 152.2 MB in the beginning and 924.3 MB in the end (delta: -772.1 MB). Peak memory consumption was 349.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.9s, OverallIterations: 22, TraceHistogramMax: 1, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4343 SDtfs, 1594 SDslu, 3111 SDs, 0 SdLazy, 109 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85299occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 20636 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 2057 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1859 NumberOfCodeBlocks, 1859 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1837 ConstructedInterpolants, 0 QuantifiedInterpolants, 195877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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...