/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:13:26,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:13:26,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:13:26,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:13:26,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:13:26,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:13:26,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:13:26,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:13:26,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:13:26,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:13:26,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:13:26,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:13:26,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:13:26,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:13:26,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:13:26,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:13:26,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:13:26,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:13:26,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:13:26,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:13:26,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:13:26,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:13:26,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:13:26,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:13:26,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:13:26,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:13:26,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:13:26,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:13:26,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:13:26,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:13:26,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:13:26,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:13:26,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:13:26,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:13:26,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:13:26,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:13:26,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:13:26,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:13:26,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:13:26,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:13:26,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:13:26,546 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 10:13:26,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:13:26,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:13:26,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:13:26,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:13:26,577 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:13:26,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:13:26,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:13:26,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:13:26,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:13:26,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:13:26,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:13:26,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:13:26,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:13:26,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:13:26,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:13:26,579 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:13:26,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:13:26,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:13:26,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:13:26,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:13:26,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:13:26,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:13:26,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:13:26,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:13:26,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:13:26,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:13:26,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:13:26,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:13:26,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:13:26,582 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:13:27,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:13:27,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:13:27,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:13:27,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:13:27,097 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:13:27,098 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-09-25 10:13:27,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5a5acf80/f4688de7863a4903a1d92c9972a508d0/FLAG5a5c9f0b7 [2020-09-25 10:13:27,875 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:13:27,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-09-25 10:13:27,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5a5acf80/f4688de7863a4903a1d92c9972a508d0/FLAG5a5c9f0b7 [2020-09-25 10:13:28,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5a5acf80/f4688de7863a4903a1d92c9972a508d0 [2020-09-25 10:13:28,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:13:28,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:13:28,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:13:28,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:13:28,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:13:28,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:13:28" (1/1) ... [2020-09-25 10:13:28,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5c20e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:28, skipping insertion in model container [2020-09-25 10:13:28,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:13:28" (1/1) ... [2020-09-25 10:13:28,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:13:28,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:13:28,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:13:28,860 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:13:29,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:13:29,030 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:13:29,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29 WrapperNode [2020-09-25 10:13:29,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:13:29,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:13:29,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:13:29,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:13:29,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (1/1) ... [2020-09-25 10:13:29,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:13:29,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:13:29,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:13:29,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:13:29,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (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 10:13:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:13:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:13:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 10:13:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:13:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 10:13:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:13:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:13:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 10:13:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:13:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:13:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:13:31,151 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:13:31,151 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:13:31,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:13:31 BoogieIcfgContainer [2020-09-25 10:13:31,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:13:31,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:13:31,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:13:31,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:13:31,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:13:28" (1/3) ... [2020-09-25 10:13:31,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27814fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:13:31, skipping insertion in model container [2020-09-25 10:13:31,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:13:29" (2/3) ... [2020-09-25 10:13:31,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27814fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:13:31, skipping insertion in model container [2020-09-25 10:13:31,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:13:31" (3/3) ... [2020-09-25 10:13:31,173 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-09-25 10:13:31,186 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:13:31,198 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:13:31,223 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:13:31,261 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:13:31,262 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:13:31,262 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:13:31,262 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:13:31,262 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:13:31,262 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:13:31,263 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:13:31,263 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:13:31,300 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-09-25 10:13:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 10:13:31,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:13:31,314 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] [2020-09-25 10:13:31,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:13:31,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:13:31,323 INFO L82 PathProgramCache]: Analyzing trace with hash -496136462, now seen corresponding path program 1 times [2020-09-25 10:13:31,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:13:31,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353720905] [2020-09-25 10:13:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:13:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:31,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:32,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:32,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:32,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:32,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 10:13:32,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:13:32,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1141 [2020-09-25 10:13:32,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:32,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:13:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:13:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 10:13:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:13:32,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:13:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:32,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:32,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:32,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:13:32,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:13:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:13:32,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:32,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:13:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:13:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:13:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:13:32,925 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 10:13:32,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353720905] [2020-09-25 10:13:32,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:13:32,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:13:32,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256110752] [2020-09-25 10:13:32,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:13:32,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:13:32,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:13:32,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:13:32,970 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-09-25 10:13:36,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:13:36,885 INFO L93 Difference]: Finished difference Result 1766 states and 2493 transitions. [2020-09-25 10:13:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:13:36,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-09-25 10:13:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:13:36,918 INFO L225 Difference]: With dead ends: 1766 [2020-09-25 10:13:36,919 INFO L226 Difference]: Without dead ends: 1025 [2020-09-25 10:13:36,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:13:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2020-09-25 10:13:37,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 995. [2020-09-25 10:13:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-25 10:13:37,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1343 transitions. [2020-09-25 10:13:37,077 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1343 transitions. Word has length 69 [2020-09-25 10:13:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:13:37,078 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1343 transitions. [2020-09-25 10:13:37,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:13:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1343 transitions. [2020-09-25 10:13:37,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:13:37,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:13:37,090 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:13:37,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:13:37,090 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:13:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:13:37,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1110466945, now seen corresponding path program 1 times [2020-09-25 10:13:37,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:13:37,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126693714] [2020-09-25 10:13:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:13:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:37,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:37,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:37,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:38,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:38,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:40,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:42,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:42,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-25 10:13:42,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:13:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 10:13:42,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:42,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:13:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:13:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 10:13:42,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:13:42,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:13:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:42,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:42,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:42,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:13:42,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:13:42,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:13:42,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:42,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:13:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:13:42,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:13:42,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:13:42,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:13:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:42,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:42,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:42,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 10:13:42,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:13:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 10:13:42,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:42,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:13:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:13:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:13:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:13:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:13:42,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126693714] [2020-09-25 10:13:42,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:13:42,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:13:42,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359000430] [2020-09-25 10:13:42,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:13:42,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:13:42,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:13:42,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:13:42,689 INFO L87 Difference]: Start difference. First operand 995 states and 1343 transitions. Second operand 7 states. [2020-09-25 10:13:45,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:13:45,156 INFO L93 Difference]: Finished difference Result 2198 states and 3031 transitions. [2020-09-25 10:13:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:13:45,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-09-25 10:13:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:13:45,166 INFO L225 Difference]: With dead ends: 2198 [2020-09-25 10:13:45,166 INFO L226 Difference]: Without dead ends: 1218 [2020-09-25 10:13:45,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:13:45,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-09-25 10:13:45,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 999. [2020-09-25 10:13:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-09-25 10:13:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1293 transitions. [2020-09-25 10:13:45,221 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1293 transitions. Word has length 153 [2020-09-25 10:13:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:13:45,222 INFO L479 AbstractCegarLoop]: Abstraction has 999 states and 1293 transitions. [2020-09-25 10:13:45,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:13:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1293 transitions. [2020-09-25 10:13:45,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 10:13:45,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:13:45,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:13:45,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:13:45,231 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:13:45,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:13:45,231 INFO L82 PathProgramCache]: Analyzing trace with hash -285764051, now seen corresponding path program 1 times [2020-09-25 10:13:45,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:13:45,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845512145] [2020-09-25 10:13:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:13:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:45,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:45,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:45,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:47,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:47,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:48,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:49,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:50,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:50,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 10:13:50,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:13:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 10:13:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:50,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:13:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:13:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 10:13:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:13:50,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:13:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:50,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:13:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:13:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:13:50,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:50,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:13:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:13:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:13:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:13:50,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:13:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:50,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:50,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:50,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 10:13:50,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:13:50,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 10:13:50,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:50,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:50,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:13:50,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:13:50,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:13:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:13:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:13:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:51,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:13:51,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 10:13:51,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:13:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 10:13:51,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:13:51,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:13:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:13:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:13:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:13:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:13:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 109 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 10:13:51,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845512145] [2020-09-25 10:13:51,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:13:51,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:13:51,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339145856] [2020-09-25 10:13:51,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:13:51,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:13:51,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:13:51,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:13:51,292 INFO L87 Difference]: Start difference. First operand 999 states and 1293 transitions. Second operand 10 states. [2020-09-25 10:13:56,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:13:56,796 INFO L93 Difference]: Finished difference Result 3944 states and 5732 transitions. [2020-09-25 10:13:56,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 10:13:56,797 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2020-09-25 10:13:56,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:13:56,818 INFO L225 Difference]: With dead ends: 3944 [2020-09-25 10:13:56,819 INFO L226 Difference]: Without dead ends: 2960 [2020-09-25 10:13:56,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2020-09-25 10:13:56,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2020-09-25 10:13:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2373. [2020-09-25 10:13:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2373 states. [2020-09-25 10:13:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3187 transitions. [2020-09-25 10:13:56,941 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3187 transitions. Word has length 232 [2020-09-25 10:13:56,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:13:56,942 INFO L479 AbstractCegarLoop]: Abstraction has 2373 states and 3187 transitions. [2020-09-25 10:13:56,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:13:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3187 transitions. [2020-09-25 10:13:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-09-25 10:13:56,953 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:13:56,954 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:13:56,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:13:56,954 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:13:56,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:13:56,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1026767537, now seen corresponding path program 1 times [2020-09-25 10:13:56,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:13:56,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382781430] [2020-09-25 10:13:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:13:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:13:57,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:57,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:57,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:58,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:13:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:00,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:02,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:02,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-09-25 10:14:02,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:14:02,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 10:14:02,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:02,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:14:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:14:02,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-09-25 10:14:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:02,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:14:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:02,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:02,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:02,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:14:02,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:14:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:14:02,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:02,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:14:02,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:14:02,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:14:02,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:14:02,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:14:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:02,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:02,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:02,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:14:02,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:14:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 10:14:02,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:02,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:02,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:14:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:14:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:14:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:02,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:14:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:02,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:02,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-25 10:14:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:14:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-09-25 10:14:02,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:02,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:14:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:14:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-09-25 10:14:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 10:14:03,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382781430] [2020-09-25 10:14:03,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:14:03,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:14:03,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975221461] [2020-09-25 10:14:03,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:14:03,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:14:03,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:14:03,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:14:03,246 INFO L87 Difference]: Start difference. First operand 2373 states and 3187 transitions. Second operand 9 states. [2020-09-25 10:14:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:14:08,420 INFO L93 Difference]: Finished difference Result 6224 states and 8335 transitions. [2020-09-25 10:14:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:14:08,421 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 340 [2020-09-25 10:14:08,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:14:08,443 INFO L225 Difference]: With dead ends: 6224 [2020-09-25 10:14:08,443 INFO L226 Difference]: Without dead ends: 3866 [2020-09-25 10:14:08,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:14:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2020-09-25 10:14:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3335. [2020-09-25 10:14:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3335 states. [2020-09-25 10:14:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4305 transitions. [2020-09-25 10:14:08,552 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4305 transitions. Word has length 340 [2020-09-25 10:14:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:14:08,553 INFO L479 AbstractCegarLoop]: Abstraction has 3335 states and 4305 transitions. [2020-09-25 10:14:08,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:14:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4305 transitions. [2020-09-25 10:14:08,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-09-25 10:14:08,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:14:08,566 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:14:08,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:14:08,567 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:14:08,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:14:08,567 INFO L82 PathProgramCache]: Analyzing trace with hash 418484426, now seen corresponding path program 1 times [2020-09-25 10:14:08,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:14:08,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739475552] [2020-09-25 10:14:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:14:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:08,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:08,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:10,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:11,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:11,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:11,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:11,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:13,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:13,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-09-25 10:14:13,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:14:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 10:14:13,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:13,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:14:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:14:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-09-25 10:14:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:13,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:14:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:13,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:13,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:13,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:14:13,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:14:13,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:14:13,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:13,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:14:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:14:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:14:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:13,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 10:14:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:13,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:13,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:13,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:14:13,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:14:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 10:14:13,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:13,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:14:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:14:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:14:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:14:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:14,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:14:14,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:14:14,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 10:14:14,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:14:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 10:14:14,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:14:14,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:14:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:14:14,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:14:14,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 10:14:14,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:14:14,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-25 10:14:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:14:14,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking...