/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=SHALLOWEST --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/Problem10_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:31:21,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:31:21,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:31:21,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:31:21,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:31:21,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:31:21,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:31:21,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:31:21,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:31:21,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:31:21,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:31:21,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:31:21,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:31:21,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:31:21,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:31:21,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:31:21,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:31:21,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:31:21,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:31:21,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:31:21,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:31:21,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:31:21,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:31:21,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:31:21,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:31:21,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:31:21,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:31:21,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:31:21,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:31:21,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:31:21,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:31:21,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:31:21,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:31:21,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:31:21,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:31:21,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:31:21,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:31:21,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:31:21,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:31:21,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:31:21,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:31:21,626 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 [2020-10-26 22:31:21,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:31:21,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:31:21,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:31:21,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:31:21,684 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:31:21,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:31:21,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:31:21,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:31:21,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:31:21,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:31:21,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:31:21,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:31:21,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:31:21,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:31:21,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:31:21,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:31:21,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:31:21,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:31:21,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:31:21,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:31:21,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:31:21,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:21,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:31:21,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:31:21,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:31:21,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:31:21,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:31:21,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:31:21,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:31:21,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:31:22,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:31:22,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:31:22,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:31:22,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:31:22,127 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:31:22,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label21.c [2020-10-26 22:31:22,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/693a3e186/3e7412e5ade74f6e89eadfb4731d5fc5/FLAG398364fea [2020-10-26 22:31:23,061 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:31:23,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label21.c [2020-10-26 22:31:23,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/693a3e186/3e7412e5ade74f6e89eadfb4731d5fc5/FLAG398364fea [2020-10-26 22:31:23,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/693a3e186/3e7412e5ade74f6e89eadfb4731d5fc5 [2020-10-26 22:31:23,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:31:23,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:31:23,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:23,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:31:23,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:31:23,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5388bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23, skipping insertion in model container [2020-10-26 22:31:23,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:31:23,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:31:23,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:23,840 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:31:24,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:24,060 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:31:24,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24 WrapperNode [2020-10-26 22:31:24,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:24,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:31:24,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:31:24,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:31:24,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:31:24,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:31:24,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:31:24,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:31:24,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (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 [2020-10-26 22:31:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:31:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:31:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:31:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:31:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:31:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:31:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:31:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:31:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:31:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:31:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:31:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:31:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:31:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:31:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:31:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:31:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:31:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:31:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:31:26,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:31:26,210 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:31:26,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:26 BoogieIcfgContainer [2020-10-26 22:31:26,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:31:26,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:31:26,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:31:26,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:31:26,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:31:23" (1/3) ... [2020-10-26 22:31:26,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf3499e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:26, skipping insertion in model container [2020-10-26 22:31:26,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (2/3) ... [2020-10-26 22:31:26,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf3499e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:26, skipping insertion in model container [2020-10-26 22:31:26,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:26" (3/3) ... [2020-10-26 22:31:26,223 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label21.c [2020-10-26 22:31:26,235 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:31:26,241 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:31:26,256 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:31:26,291 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:31:26,292 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:31:26,292 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:31:26,292 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:31:26,292 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:31:26,292 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:31:26,292 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:31:26,293 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:31:26,322 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:31:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 22:31:26,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:26,331 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] [2020-10-26 22:31:26,332 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:26,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1838550252, now seen corresponding path program 1 times [2020-10-26 22:31:26,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:26,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448547285] [2020-10-26 22:31:26,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:27,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:27,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 22:31:27,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:27,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-10-26 22:31:27,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 22:31:27,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 22:31:27,428 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:31:27,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:27,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:27,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 22:31:27,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:27,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:27,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448547285] [2020-10-26 22:31:27,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:27,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 22:31:27,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733059111] [2020-10-26 22:31:27,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:27,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:27,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:27,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:27,558 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-26 22:31:27,772 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:28,491 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-26 22:31:31,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:31,019 INFO L93 Difference]: Finished difference Result 735 states and 1308 transitions. [2020-10-26 22:31:31,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:31:31,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-26 22:31:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:31,039 INFO L225 Difference]: With dead ends: 735 [2020-10-26 22:31:31,039 INFO L226 Difference]: Without dead ends: 448 [2020-10-26 22:31:31,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:31,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-26 22:31:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-26 22:31:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 22:31:31,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 649 transitions. [2020-10-26 22:31:31,154 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 649 transitions. Word has length 34 [2020-10-26 22:31:31,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:31,155 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 649 transitions. [2020-10-26 22:31:31,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 649 transitions. [2020-10-26 22:31:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-26 22:31:31,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:31,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:31,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:31:31,162 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:31,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:31,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1614442104, now seen corresponding path program 1 times [2020-10-26 22:31:31,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:31,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894613615] [2020-10-26 22:31:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:31,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:31,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:31,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:31,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-26 22:31:31,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:31,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-26 22:31:31,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:31:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:31:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:31,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:31,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:31,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:31,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:31,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:31,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 22:31:31,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:31,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:31,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:31,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:32,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:32,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:32,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:31:32,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:32,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 22:31:32,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:31:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:32,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894613615] [2020-10-26 22:31:32,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:32,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:32,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270674178] [2020-10-26 22:31:32,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:32,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:32,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:32,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:32,157 INFO L87 Difference]: Start difference. First operand 442 states and 649 transitions. Second operand 5 states. [2020-10-26 22:31:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:33,433 INFO L93 Difference]: Finished difference Result 907 states and 1335 transitions. [2020-10-26 22:31:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:33,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-26 22:31:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:33,439 INFO L225 Difference]: With dead ends: 907 [2020-10-26 22:31:33,439 INFO L226 Difference]: Without dead ends: 448 [2020-10-26 22:31:33,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-26 22:31:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-26 22:31:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 22:31:33,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 646 transitions. [2020-10-26 22:31:33,483 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 646 transitions. Word has length 113 [2020-10-26 22:31:33,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:33,484 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 646 transitions. [2020-10-26 22:31:33,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:33,484 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 646 transitions. [2020-10-26 22:31:33,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-26 22:31:33,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:33,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:33,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:31:33,488 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:33,489 INFO L82 PathProgramCache]: Analyzing trace with hash -384153952, now seen corresponding path program 1 times [2020-10-26 22:31:33,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:33,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298927686] [2020-10-26 22:31:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:33,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:34,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:34,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:34,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:31:34,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:34,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-10-26 22:31:34,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:34,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:34,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:31:34,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:35,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:35,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:35,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:35,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:31:35,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:35,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:35,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:35,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:35,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:35,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:35,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-26 22:31:35,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:35,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:35,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298927686] [2020-10-26 22:31:35,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:35,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:35,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958042089] [2020-10-26 22:31:35,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:35,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:35,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:35,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:35,495 INFO L87 Difference]: Start difference. First operand 442 states and 646 transitions. Second operand 7 states. [2020-10-26 22:31:37,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:37,350 INFO L93 Difference]: Finished difference Result 1037 states and 1514 transitions. [2020-10-26 22:31:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:31:37,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-26 22:31:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:37,358 INFO L225 Difference]: With dead ends: 1037 [2020-10-26 22:31:37,358 INFO L226 Difference]: Without dead ends: 601 [2020-10-26 22:31:37,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:31:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2020-10-26 22:31:37,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 593. [2020-10-26 22:31:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-26 22:31:37,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 830 transitions. [2020-10-26 22:31:37,427 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 830 transitions. Word has length 116 [2020-10-26 22:31:37,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:37,430 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 830 transitions. [2020-10-26 22:31:37,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:37,430 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 830 transitions. [2020-10-26 22:31:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 22:31:37,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:37,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:37,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:31:37,449 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash -353086848, now seen corresponding path program 1 times [2020-10-26 22:31:37,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:37,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130993744] [2020-10-26 22:31:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:37,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:37,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:38,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:38,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:38,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-26 22:31:38,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:38,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1324 [2020-10-26 22:31:38,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:38,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 22:31:38,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:38,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:38,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:38,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:38,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:38,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:31:38,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:38,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:39,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:39,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 22:31:39,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-26 22:31:39,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:39,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-26 22:31:39,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:39,250 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:39,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130993744] [2020-10-26 22:31:39,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:39,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:39,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177840132] [2020-10-26 22:31:39,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:39,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:39,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:39,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:39,264 INFO L87 Difference]: Start difference. First operand 593 states and 830 transitions. Second operand 7 states. [2020-10-26 22:31:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:41,373 INFO L93 Difference]: Finished difference Result 1510 states and 2267 transitions. [2020-10-26 22:31:41,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:41,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-10-26 22:31:41,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:41,390 INFO L225 Difference]: With dead ends: 1510 [2020-10-26 22:31:41,391 INFO L226 Difference]: Without dead ends: 1066 [2020-10-26 22:31:41,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-26 22:31:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1034. [2020-10-26 22:31:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-26 22:31:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1325 transitions. [2020-10-26 22:31:41,492 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1325 transitions. Word has length 132 [2020-10-26 22:31:41,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:41,494 INFO L481 AbstractCegarLoop]: Abstraction has 1034 states and 1325 transitions. [2020-10-26 22:31:41,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:41,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1325 transitions. [2020-10-26 22:31:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-26 22:31:41,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:41,499 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:41,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:31:41,499 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:41,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:41,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1251504196, now seen corresponding path program 1 times [2020-10-26 22:31:41,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:41,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725356718] [2020-10-26 22:31:41,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-26 22:31:42,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1221 [2020-10-26 22:31:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:31:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:42,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:42,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:42,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:31:42,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:42,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:42,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:31:42,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:42,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:43,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:43,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:43,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-26 22:31:43,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:43,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725356718] [2020-10-26 22:31:43,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:43,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:31:43,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051334318] [2020-10-26 22:31:43,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:31:43,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:43,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:31:43,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:31:43,419 INFO L87 Difference]: Start difference. First operand 1034 states and 1325 transitions. Second operand 8 states. [2020-10-26 22:31:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:46,275 INFO L93 Difference]: Finished difference Result 2531 states and 3474 transitions. [2020-10-26 22:31:46,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 22:31:46,275 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-10-26 22:31:46,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:46,287 INFO L225 Difference]: With dead ends: 2531 [2020-10-26 22:31:46,287 INFO L226 Difference]: Without dead ends: 1646 [2020-10-26 22:31:46,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 22:31:46,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2020-10-26 22:31:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1636. [2020-10-26 22:31:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1636 states. [2020-10-26 22:31:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2187 transitions. [2020-10-26 22:31:46,374 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2187 transitions. Word has length 186 [2020-10-26 22:31:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:46,374 INFO L481 AbstractCegarLoop]: Abstraction has 1636 states and 2187 transitions. [2020-10-26 22:31:46,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:31:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2187 transitions. [2020-10-26 22:31:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-26 22:31:46,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:46,379 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:46,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:31:46,379 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:46,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:46,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1969899400, now seen corresponding path program 1 times [2020-10-26 22:31:46,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:46,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398200058] [2020-10-26 22:31:46,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:46,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-26 22:31:47,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 892 [2020-10-26 22:31:47,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-26 22:31:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 22:31:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:31:47,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:47,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 22:31:47,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:47,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 22:31:47,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:47,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:31:47,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:47,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:47,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:31:47,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,807 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-26 22:31:47,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398200058] [2020-10-26 22:31:47,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:47,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:47,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210412747] [2020-10-26 22:31:47,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:47,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:47,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:47,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:47,814 INFO L87 Difference]: Start difference. First operand 1636 states and 2187 transitions. Second operand 5 states. [2020-10-26 22:31:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:49,051 INFO L93 Difference]: Finished difference Result 3146 states and 4262 transitions. [2020-10-26 22:31:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:49,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-10-26 22:31:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:49,063 INFO L225 Difference]: With dead ends: 3146 [2020-10-26 22:31:49,063 INFO L226 Difference]: Without dead ends: 1640 [2020-10-26 22:31:49,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:49,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2020-10-26 22:31:49,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1636. [2020-10-26 22:31:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1636 states. [2020-10-26 22:31:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2177 transitions. [2020-10-26 22:31:49,135 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2177 transitions. Word has length 216 [2020-10-26 22:31:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:49,135 INFO L481 AbstractCegarLoop]: Abstraction has 1636 states and 2177 transitions. [2020-10-26 22:31:49,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2177 transitions. [2020-10-26 22:31:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-26 22:31:49,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:49,140 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:49,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:31:49,140 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:49,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2053095688, now seen corresponding path program 1 times [2020-10-26 22:31:49,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:49,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316533356] [2020-10-26 22:31:49,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:50,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-26 22:31:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-10-26 22:31:50,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:50,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:31:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:50,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:51,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:31:51,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:51,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 22:31:51,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 22:31:51,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-26 22:31:51,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-26 22:31:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:51,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316533356] [2020-10-26 22:31:51,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:51,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:51,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379710219] [2020-10-26 22:31:51,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:51,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:51,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:51,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:51,498 INFO L87 Difference]: Start difference. First operand 1636 states and 2177 transitions. Second operand 7 states. [2020-10-26 22:31:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:54,075 INFO L93 Difference]: Finished difference Result 3572 states and 4802 transitions. [2020-10-26 22:31:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:31:54,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-26 22:31:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:54,086 INFO L225 Difference]: With dead ends: 3572 [2020-10-26 22:31:54,087 INFO L226 Difference]: Without dead ends: 2085 [2020-10-26 22:31:54,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:54,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-10-26 22:31:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1499. [2020-10-26 22:31:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2020-10-26 22:31:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1821 transitions. [2020-10-26 22:31:54,146 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1821 transitions. Word has length 221 [2020-10-26 22:31:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:54,146 INFO L481 AbstractCegarLoop]: Abstraction has 1499 states and 1821 transitions. [2020-10-26 22:31:54,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1821 transitions. [2020-10-26 22:31:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-26 22:31:54,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:54,152 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:54,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:31:54,152 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:54,153 INFO L82 PathProgramCache]: Analyzing trace with hash 304398736, now seen corresponding path program 1 times [2020-10-26 22:31:54,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:54,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576246328] [2020-10-26 22:31:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:54,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-26 22:31:56,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:56,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1891 [2020-10-26 22:31:56,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:31:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:31:56,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:56,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:56,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:56,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:31:56,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:56,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:31:56,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-26 22:31:56,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:56,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:56,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:31:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:56,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:31:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:56,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:56,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:56,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 22:31:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-26 22:31:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-26 22:31:56,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:57,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576246328] [2020-10-26 22:31:57,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:57,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:31:57,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545407743] [2020-10-26 22:31:57,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:31:57,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:57,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:31:57,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:31:57,153 INFO L87 Difference]: Start difference. First operand 1499 states and 1821 transitions. Second operand 8 states. [2020-10-26 22:31:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:59,611 INFO L93 Difference]: Finished difference Result 3453 states and 4276 transitions. [2020-10-26 22:31:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:59,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 266 [2020-10-26 22:31:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:59,623 INFO L225 Difference]: With dead ends: 3453 [2020-10-26 22:31:59,623 INFO L226 Difference]: Without dead ends: 2103 [2020-10-26 22:31:59,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:31:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2020-10-26 22:31:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2093. [2020-10-26 22:31:59,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-10-26 22:31:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2486 transitions. [2020-10-26 22:31:59,695 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2486 transitions. Word has length 266 [2020-10-26 22:31:59,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:59,696 INFO L481 AbstractCegarLoop]: Abstraction has 2093 states and 2486 transitions. [2020-10-26 22:31:59,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:31:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2486 transitions. [2020-10-26 22:31:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-26 22:31:59,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:59,702 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:59,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:31:59,703 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:59,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:59,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1990082952, now seen corresponding path program 1 times [2020-10-26 22:31:59,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:59,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606177016] [2020-10-26 22:31:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:59,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:00,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-26 22:32:00,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-26 22:32:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-26 22:32:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 22:32:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:00,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:00,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:00,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:00,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:00,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:00,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:00,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 22:32:00,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-26 22:32:00,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-26 22:32:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-26 22:32:00,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606177016] [2020-10-26 22:32:00,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:00,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:00,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861840748] [2020-10-26 22:32:00,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:00,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:00,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:00,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:00,845 INFO L87 Difference]: Start difference. First operand 2093 states and 2486 transitions. Second operand 5 states. [2020-10-26 22:32:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:02,086 INFO L93 Difference]: Finished difference Result 4059 states and 4849 transitions. [2020-10-26 22:32:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:02,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 285 [2020-10-26 22:32:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:02,100 INFO L225 Difference]: With dead ends: 4059 [2020-10-26 22:32:02,100 INFO L226 Difference]: Without dead ends: 2093 [2020-10-26 22:32:02,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2020-10-26 22:32:02,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2091. [2020-10-26 22:32:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-10-26 22:32:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2473 transitions. [2020-10-26 22:32:02,172 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2473 transitions. Word has length 285 [2020-10-26 22:32:02,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:02,172 INFO L481 AbstractCegarLoop]: Abstraction has 2091 states and 2473 transitions. [2020-10-26 22:32:02,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2473 transitions. [2020-10-26 22:32:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-26 22:32:02,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:02,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:02,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:02,182 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:02,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:02,183 INFO L82 PathProgramCache]: Analyzing trace with hash -644298928, now seen corresponding path program 1 times [2020-10-26 22:32:02,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:02,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424316836] [2020-10-26 22:32:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:02,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:02,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:03,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3057 [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:32:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:05,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:32:05,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:05,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:32:05,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:05,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-26 22:32:05,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:32:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:32:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:05,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-26 22:32:05,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:05,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:05,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:05,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:06,186 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 241 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:32:06,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424316836] [2020-10-26 22:32:06,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:06,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:06,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506341875] [2020-10-26 22:32:06,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:06,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:06,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:06,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:06,189 INFO L87 Difference]: Start difference. First operand 2091 states and 2473 transitions. Second operand 7 states. [2020-10-26 22:32:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:08,267 INFO L93 Difference]: Finished difference Result 4923 states and 5950 transitions. [2020-10-26 22:32:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:08,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 337 [2020-10-26 22:32:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:08,285 INFO L225 Difference]: With dead ends: 4923 [2020-10-26 22:32:08,285 INFO L226 Difference]: Without dead ends: 2981 [2020-10-26 22:32:08,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:08,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2020-10-26 22:32:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2681. [2020-10-26 22:32:08,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2681 states. [2020-10-26 22:32:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 3160 transitions. [2020-10-26 22:32:08,407 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 3160 transitions. Word has length 337 [2020-10-26 22:32:08,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:08,408 INFO L481 AbstractCegarLoop]: Abstraction has 2681 states and 3160 transitions. [2020-10-26 22:32:08,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:08,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 3160 transitions. [2020-10-26 22:32:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-26 22:32:08,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:08,420 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:08,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:08,420 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:08,421 INFO L82 PathProgramCache]: Analyzing trace with hash 607193524, now seen corresponding path program 1 times [2020-10-26 22:32:08,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:08,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173601484] [2020-10-26 22:32:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:08,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2362 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:10,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:10,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:11,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:11,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:32:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:32:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:11,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:11,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:11,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-26 22:32:11,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:11,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:11,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:11,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:11,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 241 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:32:11,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173601484] [2020-10-26 22:32:11,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:11,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:11,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030080736] [2020-10-26 22:32:11,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:11,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:11,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:11,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:11,635 INFO L87 Difference]: Start difference. First operand 2681 states and 3160 transitions. Second operand 7 states. [2020-10-26 22:32:13,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:13,701 INFO L93 Difference]: Finished difference Result 6089 states and 7293 transitions. [2020-10-26 22:32:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:13,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 346 [2020-10-26 22:32:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:13,722 INFO L225 Difference]: With dead ends: 6089 [2020-10-26 22:32:13,723 INFO L226 Difference]: Without dead ends: 3557 [2020-10-26 22:32:13,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2020-10-26 22:32:13,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3408. [2020-10-26 22:32:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3408 states. [2020-10-26 22:32:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 4087 transitions. [2020-10-26 22:32:13,840 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 4087 transitions. Word has length 346 [2020-10-26 22:32:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:13,841 INFO L481 AbstractCegarLoop]: Abstraction has 3408 states and 4087 transitions. [2020-10-26 22:32:13,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 4087 transitions. [2020-10-26 22:32:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-26 22:32:13,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:13,853 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:13,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:13,854 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:13,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1322938380, now seen corresponding path program 1 times [2020-10-26 22:32:13,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:13,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332336751] [2020-10-26 22:32:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:13,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:17,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3087 [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-26 22:32:17,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:17,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:17,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:17,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:17,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:17,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:17,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:17,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:17,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:17,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:17,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:17,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:17,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:17,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:17,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:17,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-26 22:32:17,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:17,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:17,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:17,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:17,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:17,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-26 22:32:17,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:32:17,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:17,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:17,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:17,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:17,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-26 22:32:17,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:17,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:17,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:17,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:17,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 352 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 22:32:18,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332336751] [2020-10-26 22:32:18,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:18,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 22:32:18,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179505724] [2020-10-26 22:32:18,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 22:32:18,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:18,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 22:32:18,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:32:18,336 INFO L87 Difference]: Start difference. First operand 3408 states and 4087 transitions. Second operand 9 states. [2020-10-26 22:32:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:21,084 INFO L93 Difference]: Finished difference Result 7109 states and 8524 transitions. [2020-10-26 22:32:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:21,084 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 356 [2020-10-26 22:32:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:21,085 INFO L225 Difference]: With dead ends: 7109 [2020-10-26 22:32:21,085 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:32:21,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-26 22:32:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:32:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:32:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:32:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:32:21,099 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 356 [2020-10-26 22:32:21,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:21,099 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:32:21,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 22:32:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:32:21,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:32:21,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:32:21,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:32:21,333 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 136 [2020-10-26 22:32:22,020 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 136 [2020-10-26 22:32:22,429 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 41 [2020-10-26 22:32:23,203 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 53 [2020-10-26 22:32:23,616 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 42 [2020-10-26 22:32:23,948 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 41 [2020-10-26 22:32:23,954 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:32:23,954 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:32:23,954 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:32:23,955 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:32:23,955 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:23,956 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|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:32:23,957 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:32:23,958 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:32:23,958 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,959 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:32:23,960 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:32:23,961 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:32:23,962 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:32:23,963 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:32:23,963 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:32:23,963 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:32:23,963 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,963 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,964 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,965 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,965 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,965 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:32:23,965 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,966 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:32:23,967 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,969 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,970 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,970 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:32:23,970 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:32:23,970 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:32:23,970 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,971 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:32:23,972 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:32:23,973 INFO L270 CegarLoopResult]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (not (= 14 ~a4~0))) (.cse1 (not (= 0 |old(~a10~0)|))) (.cse2 (not (= 8 |old(~a19~0)|))) (.cse3 (not (= ~a12~0 0)))) (and (or (not (<= 219 |old(~a1~0)|)) .cse0 .cse1 .cse2 .cse3) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse1) (or (not (<= |old(~a1~0)| 77)) .cse0 .cse1 .cse2 (not (<= 41 |old(~a1~0)|)) .cse3) (or (not (<= 9 |old(~a19~0)|)) (not (<= 0 |old(~a10~0)|))) (not (<= 1 |old(~a10~0)|)))) [2020-10-26 22:32:23,973 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:32:23,973 INFO L274 CegarLoopResult]: For program point L87-1(line 87) no Hoare annotation was computed. [2020-10-26 22:32:23,973 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:32:23,974 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:32:23,974 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:32:23,974 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:32:23,974 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,974 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:32:23,975 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,976 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse6 (= ~a1~0 |old(~a1~0)|)) (.cse7 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse6 (= ~a19~0 |old(~a19~0)|) .cse7)) (.cse2 (not (= 14 ~a4~0))) (.cse1 (not (= 0 |old(~a10~0)|))) (.cse3 (not (= 8 |old(~a19~0)|))) (.cse5 (and (= ~a19~0 8) .cse6 .cse7)) (.cse4 (not (= ~a12~0 0)))) (and (or (not (<= 9 |old(~a19~0)|)) .cse0 (not (<= 0 |old(~a10~0)|))) (or .cse0 (not (<= (+ |old(~a1~0)| 75821) 0)) .cse1) (or .cse0 (not (<= 1 |old(~a10~0)|))) (or (not (<= |old(~a1~0)| 77)) .cse2 .cse1 .cse3 (not (<= 41 |old(~a1~0)|)) .cse4 .cse5) (or (not (<= 219 |old(~a1~0)|)) .cse2 .cse1 .cse3 .cse5 .cse4)))) [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:32:23,977 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,978 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:32:23,979 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:32:23,980 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:23,981 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:23,982 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:32:23,982 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:32:23,982 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:23,982 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-26 22:32:23,982 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:23,982 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= ~a19~0 8)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a10~0 0)) (.cse3 (= ~a12~0 0))) (or (not (= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0)) (<= 1 ~a10~0) (and .cse0 (<= 41 ~a1~0) (<= ~a1~0 77) .cse1 .cse2 .cse3) (and .cse2 (<= (+ ~a1~0 75821) 0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse1 .cse2 .cse3 (<= 219 ~a1~0)) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:32:23,982 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:32:23,982 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:32:23,983 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a19~0 8)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a10~0 0)) (.cse3 (= ~a12~0 0))) (or (not (= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0)) (<= 1 ~a10~0) (and .cse0 (<= 41 ~a1~0) (<= ~a1~0 77) .cse1 .cse2 .cse3) (and .cse2 (<= (+ ~a1~0 75821) 0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse1 .cse2 .cse3 (<= 219 ~a1~0)) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:32:23,983 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:24,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:32:24 BoogieIcfgContainer [2020-10-26 22:32:24,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:32:24,026 INFO L168 Benchmark]: Toolchain (without parser) took 60680.15 ms. Allocated memory was 160.4 MB in the beginning and 966.8 MB in the end (delta: 806.4 MB). Free memory was 133.4 MB in the beginning and 579.2 MB in the end (delta: -445.8 MB). Peak memory consumption was 578.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:24,027 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 160.4 MB. Free memory was 131.2 MB in the beginning and 131.1 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:32:24,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.81 ms. Allocated memory is still 160.4 MB. Free memory was 132.6 MB in the beginning and 140.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:24,028 INFO L168 Benchmark]: Boogie Preprocessor took 135.82 ms. Allocated memory is still 160.4 MB. Free memory was 140.0 MB in the beginning and 135.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:24,036 INFO L168 Benchmark]: RCFGBuilder took 2013.46 ms. Allocated memory was 160.4 MB in the beginning and 213.9 MB in the end (delta: 53.5 MB). Free memory was 135.2 MB in the beginning and 172.4 MB in the end (delta: -37.2 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:24,038 INFO L168 Benchmark]: TraceAbstraction took 57802.12 ms. Allocated memory was 213.9 MB in the beginning and 966.8 MB in the end (delta: 752.9 MB). Free memory was 171.9 MB in the beginning and 579.2 MB in the end (delta: -407.4 MB). Peak memory consumption was 562.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:24,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 160.4 MB. Free memory was 131.2 MB in the beginning and 131.1 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 715.81 ms. Allocated memory is still 160.4 MB. Free memory was 132.6 MB in the beginning and 140.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.82 ms. Allocated memory is still 160.4 MB. Free memory was 140.0 MB in the beginning and 135.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2013.46 ms. Allocated memory was 160.4 MB in the beginning and 213.9 MB in the end (delta: 53.5 MB). Free memory was 135.2 MB in the beginning and 172.4 MB in the end (delta: -37.2 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 57802.12 ms. Allocated memory was 213.9 MB in the beginning and 966.8 MB in the end (delta: 752.9 MB). Free memory was 171.9 MB in the beginning and 579.2 MB in the end (delta: -407.4 MB). Peak memory consumption was 562.6 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: 584]: Loop Invariant Derived loop invariant: ((((((!(9 == \old(a19)) || (9 <= a19 && \old(a10) <= a10)) || 1 <= a10) || (((((a19 == 8 && 41 <= a1) && a1 <= 77) && 14 == a4) && a10 == 0) && a12 == 0)) || (a10 == 0 && a1 + 75821 <= 0)) || !(0 == \old(a10))) || ((((a19 == 8 && 14 == a4) && a10 == 0) && a12 == 0) && 219 <= a1)) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.8s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 324 SDtfs, 5381 SDslu, 378 SDs, 0 SdLazy, 11409 SolverSat, 1619 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 91 SyntacticMatches, 3 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3408occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1113 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 296 PreInvPairs, 354 NumberOfFragments, 423 HoareAnnotationTreeSize, 296 FomulaSimplifications, 24421 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4986 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 2608 NumberOfCodeBlocks, 2608 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2596 ConstructedInterpolants, 0 QuantifiedInterpolants, 2180749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 1791/1810 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...