/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:06:52,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:06:52,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:06:52,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:06:52,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:06:52,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:06:52,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:06:52,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:06:52,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:06:52,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:06:52,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:06:52,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:06:52,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:06:52,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:06:52,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:06:52,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:06:52,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:06:52,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:06:52,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:06:52,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:06:52,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:06:52,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:06:52,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:06:52,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:06:52,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:06:52,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:06:52,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:06:52,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:06:52,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:06:52,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:06:52,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:06:52,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:06:52,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:06:52,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:06:52,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:06:52,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:06:52,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:06:52,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:06:52,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:06:52,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:06:52,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:06:52,220 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 [2020-10-28 10:06:52,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:06:52,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:06:52,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:06:52,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:06:52,287 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:06:52,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:06:52,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:06:52,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:06:52,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:06:52,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:06:52,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:06:52,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:06:52,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:06:52,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:06:52,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:06:52,294 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:06:52,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:06:52,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:06:52,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:06:52,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:06:52,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:06:52,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:06:52,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:06:52,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:06:52,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:06:52,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:06:52,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:06:52,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:06:52,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:06:52,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:06:52,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:06:52,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:06:52,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:06:52,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:06:52,744 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:06:52,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-10-28 10:06:52,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e984c7c5/bc835b7ec0b54141a7bd08695add53db/FLAG847cda113 [2020-10-28 10:06:53,559 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:06:53,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-10-28 10:06:53,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e984c7c5/bc835b7ec0b54141a7bd08695add53db/FLAG847cda113 [2020-10-28 10:06:53,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e984c7c5/bc835b7ec0b54141a7bd08695add53db [2020-10-28 10:06:53,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:06:53,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:06:53,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:06:53,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:06:53,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:06:53,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:06:53" (1/1) ... [2020-10-28 10:06:53,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fceafc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:53, skipping insertion in model container [2020-10-28 10:06:53,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:06:53" (1/1) ... [2020-10-28 10:06:53,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:06:53,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:06:54,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:06:54,446 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:06:54,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:06:54,611 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:06:54,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54 WrapperNode [2020-10-28 10:06:54,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:06:54,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:06:54,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:06:54,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:06:54,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... [2020-10-28 10:06:54,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:06:54,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:06:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:06:54,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:06:54,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:06:54,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:06:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:06:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:06:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:06:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:06:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:06:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:06:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:06:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:06:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:06:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:06:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:06:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:06:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:06:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:06:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:06:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:06:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:06:54,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:06:56,338 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:06:56,339 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:06:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:06:56 BoogieIcfgContainer [2020-10-28 10:06:56,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:06:56,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:06:56,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:06:56,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:06:56,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:06:53" (1/3) ... [2020-10-28 10:06:56,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f68b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:06:56, skipping insertion in model container [2020-10-28 10:06:56,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:06:54" (2/3) ... [2020-10-28 10:06:56,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f68b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:06:56, skipping insertion in model container [2020-10-28 10:06:56,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:06:56" (3/3) ... [2020-10-28 10:06:56,354 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2020-10-28 10:06:56,369 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:06:56,375 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:06:56,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:06:56,426 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:06:56,426 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:06:56,427 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:06:56,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:06:56,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:06:56,427 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:06:56,428 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:06:56,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:06:56,455 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-28 10:06:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-28 10:06:56,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:06:56,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:06:56,474 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:06:56,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:06:56,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1246998039, now seen corresponding path program 1 times [2020-10-28 10:06:56,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:06:56,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497570387] [2020-10-28 10:06:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:06:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:57,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:57,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:59,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 10:06:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:06:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2270 [2020-10-28 10:06:59,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:59,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:59,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:06:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:06:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 10:06:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:06:59,403 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:06:59,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:06:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:06:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:06:59,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:06:59,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:06:59,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:06:59,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 10:06:59,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:06:59,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:06:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:06:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:06:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:06:59,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:06:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:06:59,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497570387] [2020-10-28 10:06:59,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:06:59,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:06:59,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898898752] [2020-10-28 10:06:59,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:06:59,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:06:59,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:06:59,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:06:59,599 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-28 10:06:59,800 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:07:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:01,524 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-28 10:07:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:07:01,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2020-10-28 10:07:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:01,544 INFO L225 Difference]: With dead ends: 562 [2020-10-28 10:07:01,544 INFO L226 Difference]: Without dead ends: 287 [2020-10-28 10:07:01,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:07:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-28 10:07:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-28 10:07:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-28 10:07:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-28 10:07:01,634 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 134 [2020-10-28 10:07:01,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:01,635 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-28 10:07:01,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:07:01,636 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-28 10:07:01,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 10:07:01,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:01,642 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-10-28 10:07:01,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:07:01,643 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:01,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:01,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1513606262, now seen corresponding path program 1 times [2020-10-28 10:07:01,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:01,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588164302] [2020-10-28 10:07:01,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:01,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:04,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:06,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:06,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 10:07:06,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4839 [2020-10-28 10:07:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:06,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:07:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 10:07:06,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:07:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:06,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:07:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:06,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:06,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:06,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:07:06,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:07:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:06,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:07:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:07:06,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588164302] [2020-10-28 10:07:06,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:06,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:07:06,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006245847] [2020-10-28 10:07:06,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:07:06,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:06,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:07:06,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:07:06,901 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 5 states. [2020-10-28 10:07:07,057 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:07:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:08,517 INFO L93 Difference]: Finished difference Result 836 states and 1208 transitions. [2020-10-28 10:07:08,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:07:08,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-28 10:07:08,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:08,534 INFO L225 Difference]: With dead ends: 836 [2020-10-28 10:07:08,535 INFO L226 Difference]: Without dead ends: 561 [2020-10-28 10:07:08,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:07:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-28 10:07:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 555. [2020-10-28 10:07:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-28 10:07:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2020-10-28 10:07:08,626 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 143 [2020-10-28 10:07:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:08,626 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2020-10-28 10:07:08,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:07:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2020-10-28 10:07:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-28 10:07:08,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:08,634 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 10:07:08,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:07:08,634 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:08,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:08,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1286285830, now seen corresponding path program 1 times [2020-10-28 10:07:08,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:08,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722816389] [2020-10-28 10:07:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:08,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:09,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 10:07:10,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1488 [2020-10-28 10:07:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:10,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:07:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 10:07:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:10,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:10,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:10,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:10,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:10,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:10,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:07:10,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:10,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:10,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:10,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:10,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:10,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:10,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:07:10,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 10:07:10,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:10,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:07:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:07:10,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722816389] [2020-10-28 10:07:10,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:10,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:07:10,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790144901] [2020-10-28 10:07:10,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:07:10,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:10,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:07:10,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:07:10,475 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 5 states. [2020-10-28 10:07:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:12,244 INFO L93 Difference]: Finished difference Result 1658 states and 2333 transitions. [2020-10-28 10:07:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:07:12,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-10-28 10:07:12,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:12,259 INFO L225 Difference]: With dead ends: 1658 [2020-10-28 10:07:12,259 INFO L226 Difference]: Without dead ends: 1109 [2020-10-28 10:07:12,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:07:12,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-10-28 10:07:12,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1105. [2020-10-28 10:07:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-10-28 10:07:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1452 transitions. [2020-10-28 10:07:12,318 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1452 transitions. Word has length 151 [2020-10-28 10:07:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:12,319 INFO L481 AbstractCegarLoop]: Abstraction has 1105 states and 1452 transitions. [2020-10-28 10:07:12,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:07:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1452 transitions. [2020-10-28 10:07:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-28 10:07:12,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:12,326 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2020-10-28 10:07:12,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:07:12,326 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:12,327 INFO L82 PathProgramCache]: Analyzing trace with hash 620608532, now seen corresponding path program 1 times [2020-10-28 10:07:12,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:12,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609389293] [2020-10-28 10:07:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:12,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:12,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:17,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:17,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 10:07:17,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:17,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 10:07:17,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:17,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 10:07:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 10:07:17,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:17,549 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:07:17,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:17,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:17,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:17,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 10:07:17,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:17,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:17,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:17,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:17,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 10:07:17,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:17,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 10:07:17,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:17,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:17,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 10:07:17,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 10:07:17,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 10:07:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:17,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:17,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:17,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:07:17,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:17,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 10:07:17,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:17,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:17,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:17,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:07:17,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 10:07:17,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:07:17,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609389293] [2020-10-28 10:07:17,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:17,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:07:17,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691056980] [2020-10-28 10:07:17,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:07:17,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:17,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:07:17,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:07:17,835 INFO L87 Difference]: Start difference. First operand 1105 states and 1452 transitions. Second operand 7 states. [2020-10-28 10:07:18,000 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 10:07:19,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:19,754 INFO L93 Difference]: Finished difference Result 2802 states and 3848 transitions. [2020-10-28 10:07:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:07:19,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-10-28 10:07:19,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:19,767 INFO L225 Difference]: With dead ends: 2802 [2020-10-28 10:07:19,768 INFO L226 Difference]: Without dead ends: 1703 [2020-10-28 10:07:19,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:07:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2020-10-28 10:07:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1393. [2020-10-28 10:07:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2020-10-28 10:07:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1845 transitions. [2020-10-28 10:07:19,859 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1845 transitions. Word has length 167 [2020-10-28 10:07:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:19,859 INFO L481 AbstractCegarLoop]: Abstraction has 1393 states and 1845 transitions. [2020-10-28 10:07:19,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:07:19,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1845 transitions. [2020-10-28 10:07:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-28 10:07:19,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:19,866 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:07:19,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:07:19,867 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:19,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:19,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1237399885, now seen corresponding path program 1 times [2020-10-28 10:07:19,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:19,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982651335] [2020-10-28 10:07:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:20,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:20,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:21,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:21,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 10:07:21,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1441 [2020-10-28 10:07:21,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:21,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 10:07:21,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 10:07:21,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:21,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:21,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:21,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:07:21,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:21,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:21,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:21,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:21,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:21,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 10:07:21,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 10:07:21,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:21,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 10:07:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:07:21,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982651335] [2020-10-28 10:07:21,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:21,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:07:21,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260873778] [2020-10-28 10:07:21,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:07:21,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:21,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:07:21,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:07:21,669 INFO L87 Difference]: Start difference. First operand 1393 states and 1845 transitions. Second operand 5 states. [2020-10-28 10:07:21,838 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 10:07:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:23,331 INFO L93 Difference]: Finished difference Result 3060 states and 4101 transitions. [2020-10-28 10:07:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:07:23,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-28 10:07:23,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:23,345 INFO L225 Difference]: With dead ends: 3060 [2020-10-28 10:07:23,345 INFO L226 Difference]: Without dead ends: 1673 [2020-10-28 10:07:23,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:07:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2020-10-28 10:07:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1534. [2020-10-28 10:07:23,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1534 states. [2020-10-28 10:07:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 1968 transitions. [2020-10-28 10:07:23,425 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 1968 transitions. Word has length 168 [2020-10-28 10:07:23,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:23,425 INFO L481 AbstractCegarLoop]: Abstraction has 1534 states and 1968 transitions. [2020-10-28 10:07:23,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:07:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 1968 transitions. [2020-10-28 10:07:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-28 10:07:23,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:23,434 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:07:23,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:07:23,434 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:23,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:23,435 INFO L82 PathProgramCache]: Analyzing trace with hash 774651789, now seen corresponding path program 1 times [2020-10-28 10:07:23,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:23,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241377151] [2020-10-28 10:07:23,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:23,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:23,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:23,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:28,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:28,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-28 10:07:28,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:07:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-28 10:07:28,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:28,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:28,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:28,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-28 10:07:28,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 10:07:28,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:28,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:28,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:28,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:28,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:28,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:07:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:28,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:28,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:28,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:28,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:28,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:07:28,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 10:07:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:28,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:28,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:07:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:28,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:28,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:28,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:07:28,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:07:28,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:28,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:28,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:28,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 10:07:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:28,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:28,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:28,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:07:28,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:28,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 10:07:28,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:28,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:28,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:28,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:28,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 10:07:28,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:28,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 10:07:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:28,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:28,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:28,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:07:28,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:28,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 10:07:28,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:28,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:28,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:28,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:07:28,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 10:07:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-28 10:07:29,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241377151] [2020-10-28 10:07:29,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:29,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:07:29,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431163233] [2020-10-28 10:07:29,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:07:29,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:29,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:07:29,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:07:29,015 INFO L87 Difference]: Start difference. First operand 1534 states and 1968 transitions. Second operand 7 states. [2020-10-28 10:07:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:31,769 INFO L93 Difference]: Finished difference Result 3738 states and 5120 transitions. [2020-10-28 10:07:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 10:07:31,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-28 10:07:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:31,799 INFO L225 Difference]: With dead ends: 3738 [2020-10-28 10:07:31,799 INFO L226 Difference]: Without dead ends: 2210 [2020-10-28 10:07:31,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 10:07:31,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2020-10-28 10:07:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1981. [2020-10-28 10:07:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-10-28 10:07:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2477 transitions. [2020-10-28 10:07:31,924 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2477 transitions. Word has length 212 [2020-10-28 10:07:31,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:31,926 INFO L481 AbstractCegarLoop]: Abstraction has 1981 states and 2477 transitions. [2020-10-28 10:07:31,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:07:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2477 transitions. [2020-10-28 10:07:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-28 10:07:31,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:31,937 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 10:07:31,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:07:31,938 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:31,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:31,939 INFO L82 PathProgramCache]: Analyzing trace with hash -121486731, now seen corresponding path program 1 times [2020-10-28 10:07:31,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:31,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421667521] [2020-10-28 10:07:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:32,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:32,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:32,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:37,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:37,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-28 10:07:37,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:37,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 10:07:37,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:37,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:37,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:07:37,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:07:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:07:37,171 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:07:37,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:37,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:37,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:37,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:37,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:07:37,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:37,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:37,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:37,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:37,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:37,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:37,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:07:37,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:37,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:07:37,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:37,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:37,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:07:37,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:07:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:37,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:07:37,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 10:07:37,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:37,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:07:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:07:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:37,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 10:07:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:37,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:37,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:37,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 10:07:37,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 10:07:37,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:37,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 10:07:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:37,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:07:37,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 10:07:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:37,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:37,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:37,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:07:37,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 10:07:37,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:37,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:07:37,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:37,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:37,599 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 102 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-28 10:07:37,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421667521] [2020-10-28 10:07:37,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:37,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:07:37,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139909827] [2020-10-28 10:07:37,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:07:37,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:37,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:07:37,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:07:37,606 INFO L87 Difference]: Start difference. First operand 1981 states and 2477 transitions. Second operand 7 states. [2020-10-28 10:07:38,861 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 10:07:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:39,405 INFO L93 Difference]: Finished difference Result 3819 states and 4780 transitions. [2020-10-28 10:07:39,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:07:39,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-28 10:07:39,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:39,417 INFO L225 Difference]: With dead ends: 3819 [2020-10-28 10:07:39,418 INFO L226 Difference]: Without dead ends: 1844 [2020-10-28 10:07:39,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:07:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-10-28 10:07:39,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1844. [2020-10-28 10:07:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1844 states. [2020-10-28 10:07:39,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2171 transitions. [2020-10-28 10:07:39,495 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2171 transitions. Word has length 232 [2020-10-28 10:07:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:39,496 INFO L481 AbstractCegarLoop]: Abstraction has 1844 states and 2171 transitions. [2020-10-28 10:07:39,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:07:39,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2171 transitions. [2020-10-28 10:07:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-28 10:07:39,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:39,506 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 10:07:39,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:07:39,506 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:39,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1163738619, now seen corresponding path program 1 times [2020-10-28 10:07:39,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:39,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421058498] [2020-10-28 10:07:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:39,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:39,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:39,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:44,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:44,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-28 10:07:44,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 10:07:44,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:44,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:07:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:07:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 10:07:44,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:44,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:44,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:44,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:44,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:44,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:44,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 10:07:44,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:44,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:44,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:07:44,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:44,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:44,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:44,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 10:07:44,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:44,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 10:07:44,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:44,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:07:44,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 10:07:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:44,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 10:07:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:44,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:44,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:44,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:07:44,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:44,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:07:44,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:44,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 10:07:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:44,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 10:07:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:44,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:44,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:44,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 10:07:44,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:44,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 10:07:44,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:44,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 10:07:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:44,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-28 10:07:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:44,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:44,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:44,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:07:44,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:07:44,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:44,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:07:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:44,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 94 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-28 10:07:45,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421058498] [2020-10-28 10:07:45,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:45,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:07:45,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123244051] [2020-10-28 10:07:45,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:07:45,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:45,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:07:45,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:07:45,084 INFO L87 Difference]: Start difference. First operand 1844 states and 2171 transitions. Second operand 7 states. [2020-10-28 10:07:45,943 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 10:07:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:46,698 INFO L93 Difference]: Finished difference Result 3801 states and 4470 transitions. [2020-10-28 10:07:46,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:07:46,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-28 10:07:46,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:46,710 INFO L225 Difference]: With dead ends: 3801 [2020-10-28 10:07:46,711 INFO L226 Difference]: Without dead ends: 1967 [2020-10-28 10:07:46,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:07:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2020-10-28 10:07:46,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1832. [2020-10-28 10:07:46,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-10-28 10:07:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2133 transitions. [2020-10-28 10:07:46,784 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2133 transitions. Word has length 240 [2020-10-28 10:07:46,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:46,784 INFO L481 AbstractCegarLoop]: Abstraction has 1832 states and 2133 transitions. [2020-10-28 10:07:46,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:07:46,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2133 transitions. [2020-10-28 10:07:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-28 10:07:46,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:46,794 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-28 10:07:46,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:07:46,794 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:46,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:46,795 INFO L82 PathProgramCache]: Analyzing trace with hash -2081634013, now seen corresponding path program 1 times [2020-10-28 10:07:46,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:46,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974337627] [2020-10-28 10:07:46,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:46,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:51,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:51,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-28 10:07:51,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:07:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 10:07:51,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:51,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 10:07:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 10:07:51,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:52,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:52,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:52,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:52,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:07:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:52,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:52,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:52,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:52,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:07:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:07:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:52,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:52,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 10:07:52,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:52,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 10:07:52,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:52,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:52,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:07:52,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:07:52,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 10:07:52,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 10:07:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:52,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:52,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:52,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:07:52,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:52,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:07:52,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:52,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 10:07:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:52,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 10:07:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:52,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:52,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:52,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 10:07:52,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:52,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 10:07:52,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:52,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 10:07:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-28 10:07:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:52,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:52,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:07:52,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:52,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:07:52,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:52,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:52,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:07:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 116 proven. 46 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-28 10:07:52,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974337627] [2020-10-28 10:07:52,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:52,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:07:52,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467091683] [2020-10-28 10:07:52,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:07:52,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:52,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:07:52,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:07:52,337 INFO L87 Difference]: Start difference. First operand 1832 states and 2133 transitions. Second operand 7 states. [2020-10-28 10:07:52,466 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 10:07:53,503 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 10:07:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:07:53,972 INFO L93 Difference]: Finished difference Result 3664 states and 4269 transitions. [2020-10-28 10:07:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:07:53,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2020-10-28 10:07:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:07:53,988 INFO L225 Difference]: With dead ends: 3664 [2020-10-28 10:07:53,988 INFO L226 Difference]: Without dead ends: 1838 [2020-10-28 10:07:53,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:07:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-10-28 10:07:54,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1834. [2020-10-28 10:07:54,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1834 states. [2020-10-28 10:07:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2118 transitions. [2020-10-28 10:07:54,056 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2118 transitions. Word has length 248 [2020-10-28 10:07:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:07:54,056 INFO L481 AbstractCegarLoop]: Abstraction has 1834 states and 2118 transitions. [2020-10-28 10:07:54,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:07:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2118 transitions. [2020-10-28 10:07:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-28 10:07:54,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:07:54,066 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-28 10:07:54,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:07:54,066 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:07:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:07:54,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1669004497, now seen corresponding path program 1 times [2020-10-28 10:07:54,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:07:54,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763807623] [2020-10-28 10:07:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:07:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:54,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:54,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:54,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:57,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-28 10:07:59,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 10:07:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 10:07:59,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:59,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:07:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 10:07:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 10:07:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:59,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:07:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:59,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:59,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:07:59,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:59,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:07:59,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:59,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:59,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:59,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:07:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:59,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 10:07:59,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:59,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:07:59,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:59,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:59,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:59,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 10:07:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:59,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:59,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:07:59,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:59,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:07:59,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:59,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:07:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:07:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:59,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 10:07:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:59,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 10:07:59,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:07:59,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 10:07:59,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:59,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 10:07:59,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:59,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-28 10:07:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:07:59,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:07:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:07:59,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:07:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:07:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 10:07:59,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:07:59,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:07:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:07:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:07:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:07:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:07:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 130 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-28 10:07:59,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763807623] [2020-10-28 10:07:59,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:07:59,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:07:59,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399232021] [2020-10-28 10:07:59,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:07:59,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:07:59,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:07:59,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:07:59,597 INFO L87 Difference]: Start difference. First operand 1834 states and 2118 transitions. Second operand 5 states. [2020-10-28 10:08:01,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:01,004 INFO L93 Difference]: Finished difference Result 4068 states and 4684 transitions. [2020-10-28 10:08:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:01,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2020-10-28 10:08:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:01,006 INFO L225 Difference]: With dead ends: 4068 [2020-10-28 10:08:01,006 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 10:08:01,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:08:01,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 10:08:01,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 10:08:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 10:08:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 10:08:01,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 262 [2020-10-28 10:08:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:01,017 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 10:08:01,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:08:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 10:08:01,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 10:08:01,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 10:08:01,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 10:08:01,811 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 128 [2020-10-28 10:08:02,104 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 128 [2020-10-28 10:08:02,338 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 35 [2020-10-28 10:08:03,184 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 60 [2020-10-28 10:08:03,429 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 37 [2020-10-28 10:08:03,749 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 37 [2020-10-28 10:08:03,931 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 32 [2020-10-28 10:08:03,936 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 10:08:03,937 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 10:08:03,937 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 10:08:03,937 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 10:08:03,937 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:08:03,937 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-28 10:08:03,937 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-28 10:08:03,938 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-28 10:08:03,939 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-28 10:08:03,940 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,941 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-28 10:08:03,942 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,943 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-28 10:08:03,944 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-28 10:08:03,945 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,946 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-28 10:08:03,947 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-28 10:08:03,948 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-28 10:08:03,949 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-28 10:08:03,950 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,951 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse7 (<= ~a21~0 1)) (.cse8 (<= 1 ~a21~0)) (.cse5 (not (<= |old(~a21~0)| 1))) (.cse6 (not (<= 1 |old(~a21~0)|))) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (and (or (not (<= 5 |old(~a16~0)|)) (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (= ~a21~0 1) .cse2 .cse3 .cse4) (not (= |old(~a21~0)| 1))) (or .cse5 .cse6 (and .cse0 .cse1 .cse2 .cse4 .cse7 (= ~a16~0 4) .cse8) (not (= 4 |old(~a16~0)|))) (or (and .cse0 .cse1 .cse2 .cse4 .cse7 .cse8 (= 5 ~a16~0)) .cse5 .cse6 (not (= 5 |old(~a16~0)|))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~a8~0 15) .cse7 .cse8) .cse5 .cse6 (not (= 15 |old(~a8~0)|))) (or (not (<= |old(~a8~0)| 13)) (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|) .cse2 .cse3 .cse4)))) [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-28 10:08:03,952 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-28 10:08:03,953 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L270 CegarLoopResult]: At program point L559(line 559) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a21~0)| 1))) (.cse1 (not (<= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 (not (= 15 |old(~a8~0)|))) (or .cse0 .cse1 (not (= 5 |old(~a16~0)|))) (not (<= |old(~a8~0)| 13)) (or (not (<= 5 |old(~a16~0)|)) (not (= |old(~a17~0)| 1)) (not (= |old(~a21~0)| 1))) (or .cse0 .cse1 (not (= 4 |old(~a16~0)|))))) [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L559-1(line 559) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-28 10:08:03,954 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,955 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-28 10:08:03,956 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 10:08:03,957 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a8~0 15) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a17~0 1)) [2020-10-28 10:08:03,957 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 10:08:03,957 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 10:08:03,958 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0)) (not (<= 1 |old(~a17~0)|)) (not (= |old(~a20~0)| 1)) (not (<= |old(~a17~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1))) [2020-10-28 10:08:03,958 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-28 10:08:03,958 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0))) (or (and (= ~a8~0 15) .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (<= 5 ~a16~0) (= ~a17~0 1)) (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 (= 5 ~a16~0)) (and (= ~a16~0 4) .cse0 .cse1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (<= ~a8~0 13))) [2020-10-28 10:08:03,958 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-28 10:08:03,958 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-28 10:08:03,958 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0))) (or (and (= ~a8~0 15) .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (<= 5 ~a16~0) (= ~a17~0 1)) (not (= |old(~a20~0)| 1)) (and .cse0 .cse1 (= 5 ~a16~0)) (and (= ~a16~0 4) .cse0 .cse1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (<= ~a8~0 13))) [2020-10-28 10:08:03,958 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-28 10:08:03,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:08:03 BoogieIcfgContainer [2020-10-28 10:08:03,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:08:03,983 INFO L168 Benchmark]: Toolchain (without parser) took 70150.86 ms. Allocated memory was 164.6 MB in the beginning and 829.4 MB in the end (delta: 664.8 MB). Free memory was 137.3 MB in the beginning and 788.4 MB in the end (delta: -651.1 MB). Peak memory consumption was 493.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:08:03,984 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 164.6 MB. Free memory was 136.8 MB in the beginning and 136.7 MB in the end (delta: 106.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:08:03,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.04 ms. Allocated memory is still 164.6 MB. Free memory was 136.7 MB in the beginning and 109.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-28 10:08:03,985 INFO L168 Benchmark]: Boogie Preprocessor took 163.27 ms. Allocated memory is still 164.6 MB. Free memory was 109.3 MB in the beginning and 142.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2020-10-28 10:08:03,986 INFO L168 Benchmark]: RCFGBuilder took 1561.57 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 142.1 MB in the beginning and 161.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 93.3 MB. Max. memory is 8.0 GB. [2020-10-28 10:08:03,986 INFO L168 Benchmark]: TraceAbstraction took 67637.10 ms. Allocated memory was 198.2 MB in the beginning and 829.4 MB in the end (delta: 631.2 MB). Free memory was 161.1 MB in the beginning and 788.4 MB in the end (delta: -627.3 MB). Peak memory consumption was 482.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:08:03,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 164.6 MB. Free memory was 136.8 MB in the beginning and 136.7 MB in the end (delta: 106.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 771.04 ms. Allocated memory is still 164.6 MB. Free memory was 136.7 MB in the beginning and 109.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 163.27 ms. Allocated memory is still 164.6 MB. Free memory was 109.3 MB in the beginning and 142.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1561.57 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 142.1 MB in the beginning and 161.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 93.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 67637.10 ms. Allocated memory was 198.2 MB in the beginning and 829.4 MB in the end (delta: 631.2 MB). Free memory was 161.1 MB in the beginning and 788.4 MB in the end (delta: -627.3 MB). Peak memory consumption was 482.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 585]: Loop Invariant Derived loop invariant: ((((((((((a8 == 15 && a21 <= 1) && 1 <= a21) || !(\old(a17) == 1)) || (((a21 <= 1 && 1 <= a21) && 5 <= a16) && a17 == 1)) || !(\old(a20) == 1)) || ((a21 <= 1 && 1 <= a21) && 5 == a16)) || ((a16 == 4 && a21 <= 1) && 1 <= a21)) || !(5 == \old(a16))) || !(\old(a21) == 1)) || !(15 == \old(a8))) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.5s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 3784 SDslu, 289 SDs, 0 SdLazy, 6875 SolverSat, 1070 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 104 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1981occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 833 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 226 PreInvPairs, 260 NumberOfFragments, 506 HoareAnnotationTreeSize, 226 FomulaSimplifications, 122566 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3553 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 43.9s InterpolantComputationTime, 1957 NumberOfCodeBlocks, 1957 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1947 ConstructedInterpolants, 0 QuantifiedInterpolants, 1147684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 976/1097 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...