/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_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:33:29,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:33:29,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:33:29,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:33:29,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:33:29,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:33:29,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:33:29,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:33:29,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:33:29,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:33:29,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:33:29,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:33:29,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:33:29,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:33:29,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:33:29,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:33:29,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:33:29,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:33:29,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:33:29,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:33:29,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:33:29,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:33:29,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:33:29,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:33:29,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:33:29,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:33:29,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:33:29,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:33:29,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:33:29,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:33:29,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:33:29,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:33:29,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:33:29,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:33:29,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:33:29,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:33:29,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:33:29,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:33:29,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:33:29,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:33:29,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:33:29,580 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 22:33:29,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:33:29,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:33:29,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:33:29,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:33:29,614 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:33:29,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:33:29,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:33:29,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:33:29,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:33:29,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:33:29,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:33:29,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:33:29,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:33:29,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:33:29,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:33:29,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:33:29,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:33:29,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:33:29,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:33:29,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:33:29,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:33:29,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:33:29,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:33:29,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:33:29,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:33:29,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:33:29,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:33:29,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:33:29,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:33:29,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:33:30,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:33:30,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:33:30,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:33:30,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:33:30,049 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:33:30,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-10-26 22:33:30,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f81fe5d2e/ab7fb742442a48f09c83fa31af04ccae/FLAG3fd6f6f16 [2020-10-26 22:33:30,963 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:33:30,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-10-26 22:33:30,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f81fe5d2e/ab7fb742442a48f09c83fa31af04ccae/FLAG3fd6f6f16 [2020-10-26 22:33:31,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f81fe5d2e/ab7fb742442a48f09c83fa31af04ccae [2020-10-26 22:33:31,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:33:31,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:33:31,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:33:31,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:33:31,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:33:31,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:31" (1/1) ... [2020-10-26 22:33:31,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26be5c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:31, skipping insertion in model container [2020-10-26 22:33:31,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:31" (1/1) ... [2020-10-26 22:33:31,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:33:31,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:33:31,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:33:31,885 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:33:32,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:33:32,040 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:33:32,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32 WrapperNode [2020-10-26 22:33:32,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:33:32,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:33:32,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:33:32,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:33:32,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (1/1) ... [2020-10-26 22:33:32,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:33:32,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:33:32,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:33:32,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:33:32,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (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 22:33:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:33:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:33:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:33:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:33:32,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:33:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:33:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:33:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:33:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:33:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:33:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:33:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:33:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:33:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:33:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:33:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:33:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:33:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:33:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:33:33,636 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:33:33,637 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:33:33,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:33 BoogieIcfgContainer [2020-10-26 22:33:33,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:33:33,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:33:33,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:33:33,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:33:33,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:33:31" (1/3) ... [2020-10-26 22:33:33,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320a79c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:33, skipping insertion in model container [2020-10-26 22:33:33,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:32" (2/3) ... [2020-10-26 22:33:33,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320a79c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:33, skipping insertion in model container [2020-10-26 22:33:33,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:33" (3/3) ... [2020-10-26 22:33:33,650 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label52.c [2020-10-26 22:33:33,687 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:33:33,693 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:33:33,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:33:33,741 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:33:33,741 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:33:33,741 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:33:33,741 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:33:33,741 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:33:33,741 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:33:33,741 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:33:33,742 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:33:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:33:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-26 22:33:33,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:33,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:33,778 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:33,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2022545268, now seen corresponding path program 1 times [2020-10-26 22:33:33,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:33,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507002755] [2020-10-26 22:33:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:34,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-26 22:33:34,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-26 22:33:34,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-26 22:33:34,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:33:34,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:34,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:34,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:34,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 22:33:34,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:34,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:34,687 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 22:33:34,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507002755] [2020-10-26 22:33:34,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:33:34,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 22:33:34,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020571082] [2020-10-26 22:33:34,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:34,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:34,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:34,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:34,715 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-26 22:33:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:36,833 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:33:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:36,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-10-26 22:33:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:36,850 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:33:36,850 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:33:36,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:36,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:33:36,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:33:36,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:33:36,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:33:36,937 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 48 [2020-10-26 22:33:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:36,938 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:33:36,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:36,938 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:33:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-26 22:33:36,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:36,944 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:36,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:33:36,945 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:36,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash 142672144, now seen corresponding path program 1 times [2020-10-26 22:33:36,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:36,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233030488] [2020-10-26 22:33:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:37,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:37,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:37,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-26 22:33:37,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-26 22:33:37,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:33:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:37,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 22:33:37,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:37,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:37,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:37,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:37,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:37,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 22:33:37,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:38,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:38,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:38,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-26 22:33:38,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:33:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:33:38,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233030488] [2020-10-26 22:33:38,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:38,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:38,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660765248] [2020-10-26 22:33:38,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:33:38,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:38,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:33:38,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:38,240 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 6 states. [2020-10-26 22:33:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:40,015 INFO L93 Difference]: Finished difference Result 606 states and 830 transitions. [2020-10-26 22:33:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:33:40,017 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-26 22:33:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:40,024 INFO L225 Difference]: With dead ends: 606 [2020-10-26 22:33:40,024 INFO L226 Difference]: Without dead ends: 603 [2020-10-26 22:33:40,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:40,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-26 22:33:40,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 444. [2020-10-26 22:33:40,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-26 22:33:40,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 621 transitions. [2020-10-26 22:33:40,071 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 621 transitions. Word has length 118 [2020-10-26 22:33:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:40,072 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 621 transitions. [2020-10-26 22:33:40,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:33:40,072 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 621 transitions. [2020-10-26 22:33:40,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-26 22:33:40,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:40,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:40,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:33:40,076 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:40,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:40,077 INFO L82 PathProgramCache]: Analyzing trace with hash 197965852, now seen corresponding path program 1 times [2020-10-26 22:33:40,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:40,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730587552] [2020-10-26 22:33:40,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:40,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-26 22:33:41,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1522 [2020-10-26 22:33:41,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 22:33:41,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:41,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:41,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 22:33:41,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:33:41,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:41,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-26 22:33:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:33:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:33:42,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730587552] [2020-10-26 22:33:42,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:33:42,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 22:33:42,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346496094] [2020-10-26 22:33:42,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:42,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:42,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:42,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:42,048 INFO L87 Difference]: Start difference. First operand 444 states and 621 transitions. Second operand 8 states. [2020-10-26 22:33:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:44,235 INFO L93 Difference]: Finished difference Result 1198 states and 1703 transitions. [2020-10-26 22:33:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:44,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-26 22:33:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:44,243 INFO L225 Difference]: With dead ends: 1198 [2020-10-26 22:33:44,243 INFO L226 Difference]: Without dead ends: 760 [2020-10-26 22:33:44,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:33:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-26 22:33:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 742. [2020-10-26 22:33:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-26 22:33:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 968 transitions. [2020-10-26 22:33:44,316 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 968 transitions. Word has length 121 [2020-10-26 22:33:44,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:44,317 INFO L481 AbstractCegarLoop]: Abstraction has 742 states and 968 transitions. [2020-10-26 22:33:44,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:44,317 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 968 transitions. [2020-10-26 22:33:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-26 22:33:44,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:44,321 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:44,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:33:44,321 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:44,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:44,322 INFO L82 PathProgramCache]: Analyzing trace with hash 211600400, now seen corresponding path program 1 times [2020-10-26 22:33:44,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:44,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386292253] [2020-10-26 22:33:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:44,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 22:33:44,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:44,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-26 22:33:44,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:33:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 22:33:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-26 22:33:45,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:45,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:45,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:45,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:45,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:45,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:33:45,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:45,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:45,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:45,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:33:45,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 22:33:45,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:33:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:33:45,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386292253] [2020-10-26 22:33:45,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:45,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:45,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226528445] [2020-10-26 22:33:45,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:45,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:45,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:45,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:45,244 INFO L87 Difference]: Start difference. First operand 742 states and 968 transitions. Second operand 5 states. [2020-10-26 22:33:46,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:46,895 INFO L93 Difference]: Finished difference Result 1778 states and 2368 transitions. [2020-10-26 22:33:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:46,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-26 22:33:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:46,903 INFO L225 Difference]: With dead ends: 1778 [2020-10-26 22:33:46,903 INFO L226 Difference]: Without dead ends: 1042 [2020-10-26 22:33:46,905 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 22:33:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2020-10-26 22:33:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1036. [2020-10-26 22:33:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2020-10-26 22:33:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1269 transitions. [2020-10-26 22:33:46,968 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1269 transitions. Word has length 127 [2020-10-26 22:33:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:46,968 INFO L481 AbstractCegarLoop]: Abstraction has 1036 states and 1269 transitions. [2020-10-26 22:33:46,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1269 transitions. [2020-10-26 22:33:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-26 22:33:46,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:46,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:46,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:33:46,973 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:46,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:46,974 INFO L82 PathProgramCache]: Analyzing trace with hash 388940140, now seen corresponding path program 1 times [2020-10-26 22:33:46,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:46,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637889531] [2020-10-26 22:33:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:47,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:48,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:48,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:48,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 22:33:48,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1700 [2020-10-26 22:33:48,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:33:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:48,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:48,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:48,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:48,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:48,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:48,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:48,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:33:48,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:48,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:48,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:48,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:48,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 22:33:48,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:33:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:33:49,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:33:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:49,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:49,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:49,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:49,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:49,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-26 22:33:49,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:49,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:49,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:49,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637889531] [2020-10-26 22:33:49,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:49,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:33:49,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884616698] [2020-10-26 22:33:49,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:49,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:49,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:49,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:49,304 INFO L87 Difference]: Start difference. First operand 1036 states and 1269 transitions. Second operand 8 states. [2020-10-26 22:33:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:51,987 INFO L93 Difference]: Finished difference Result 2684 states and 3470 transitions. [2020-10-26 22:33:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 22:33:51,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2020-10-26 22:33:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:52,003 INFO L225 Difference]: With dead ends: 2684 [2020-10-26 22:33:52,003 INFO L226 Difference]: Without dead ends: 1654 [2020-10-26 22:33:52,006 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 22:33:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2020-10-26 22:33:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1495. [2020-10-26 22:33:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-26 22:33:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1904 transitions. [2020-10-26 22:33:52,072 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1904 transitions. Word has length 208 [2020-10-26 22:33:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:52,073 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1904 transitions. [2020-10-26 22:33:52,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1904 transitions. [2020-10-26 22:33:52,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-26 22:33:52,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:52,079 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:52,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:33:52,080 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:52,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:52,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1389352868, now seen corresponding path program 1 times [2020-10-26 22:33:52,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:52,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436185866] [2020-10-26 22:33:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:52,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:55,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:56,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:57,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:57,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-26 22:33:57,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:57,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-26 22:33:57,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:57,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:57,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:57,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:57,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:57,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:57,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:33:57,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:57,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:57,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:57,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:57,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:57,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:57,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:33:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:57,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 22:33:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:57,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:57,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:57,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:57,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:57,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:33:57,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 80 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:33:57,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436185866] [2020-10-26 22:33:57,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:57,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:57,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177464402] [2020-10-26 22:33:57,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:57,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:57,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:57,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:57,690 INFO L87 Difference]: Start difference. First operand 1495 states and 1904 transitions. Second operand 7 states. [2020-10-26 22:33:59,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:59,504 INFO L93 Difference]: Finished difference Result 3155 states and 4023 transitions. [2020-10-26 22:33:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:33:59,505 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-10-26 22:33:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:59,516 INFO L225 Difference]: With dead ends: 3155 [2020-10-26 22:33:59,516 INFO L226 Difference]: Without dead ends: 1666 [2020-10-26 22:33:59,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 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 22:33:59,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2020-10-26 22:33:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1505. [2020-10-26 22:33:59,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2020-10-26 22:33:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1909 transitions. [2020-10-26 22:33:59,590 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1909 transitions. Word has length 225 [2020-10-26 22:33:59,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:59,591 INFO L481 AbstractCegarLoop]: Abstraction has 1505 states and 1909 transitions. [2020-10-26 22:33:59,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1909 transitions. [2020-10-26 22:33:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-26 22:33:59,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:59,599 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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 22:33:59,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:33:59,599 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:59,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:59,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1445573232, now seen corresponding path program 1 times [2020-10-26 22:33:59,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:59,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811142228] [2020-10-26 22:33:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:03,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:03,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-26 22:34:03,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3942 [2020-10-26 22:34:03,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:34:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:34:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-26 22:34:03,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:03,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:03,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:03,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:03,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:34:03,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:03,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:03,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:03,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:03,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:34:03,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:03,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:34:03,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:34:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:03,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:34:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:04,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:04,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:04,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:04,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-26 22:34:04,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:04,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811142228] [2020-10-26 22:34:04,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:04,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:04,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129683183] [2020-10-26 22:34:04,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:04,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:04,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:04,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:04,931 INFO L87 Difference]: Start difference. First operand 1505 states and 1909 transitions. Second operand 8 states. [2020-10-26 22:34:07,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:07,182 INFO L93 Difference]: Finished difference Result 3038 states and 3949 transitions. [2020-10-26 22:34:07,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:34:07,183 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 259 [2020-10-26 22:34:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:07,195 INFO L225 Difference]: With dead ends: 3038 [2020-10-26 22:34:07,195 INFO L226 Difference]: Without dead ends: 1682 [2020-10-26 22:34:07,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:34:07,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2020-10-26 22:34:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1654. [2020-10-26 22:34:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2020-10-26 22:34:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2073 transitions. [2020-10-26 22:34:07,270 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2073 transitions. Word has length 259 [2020-10-26 22:34:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:07,271 INFO L481 AbstractCegarLoop]: Abstraction has 1654 states and 2073 transitions. [2020-10-26 22:34:07,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:07,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2073 transitions. [2020-10-26 22:34:07,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-26 22:34:07,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:07,278 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:34:07,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:34:07,278 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1801415312, now seen corresponding path program 1 times [2020-10-26 22:34:07,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:07,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759787379] [2020-10-26 22:34:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:07,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:08,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:09,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:09,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-26 22:34:09,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:09,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2398 [2020-10-26 22:34:09,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:09,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:34:09,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:34:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:09,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:09,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:09,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:09,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:09,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:09,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:34:09,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:09,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:09,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:09,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:09,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:09,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:34:09,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:34:09,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:34:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:10,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:34:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:10,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:10,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:10,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:10,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:10,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:10,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-26 22:34:10,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:10,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759787379] [2020-10-26 22:34:10,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:10,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:10,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984599137] [2020-10-26 22:34:10,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:10,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:10,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:10,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:10,665 INFO L87 Difference]: Start difference. First operand 1654 states and 2073 transitions. Second operand 7 states. [2020-10-26 22:34:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:12,949 INFO L93 Difference]: Finished difference Result 3907 states and 4935 transitions. [2020-10-26 22:34:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:12,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-10-26 22:34:12,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:12,963 INFO L225 Difference]: With dead ends: 3907 [2020-10-26 22:34:12,963 INFO L226 Difference]: Without dead ends: 2379 [2020-10-26 22:34:12,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:34:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2020-10-26 22:34:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1656. [2020-10-26 22:34:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2020-10-26 22:34:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2071 transitions. [2020-10-26 22:34:13,035 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2071 transitions. Word has length 268 [2020-10-26 22:34:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:13,035 INFO L481 AbstractCegarLoop]: Abstraction has 1656 states and 2071 transitions. [2020-10-26 22:34:13,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:13,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2071 transitions. [2020-10-26 22:34:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-26 22:34:13,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:13,043 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:34:13,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:34:13,046 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:13,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:13,047 INFO L82 PathProgramCache]: Analyzing trace with hash -8741416, now seen corresponding path program 1 times [2020-10-26 22:34:13,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:13,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331337819] [2020-10-26 22:34:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:14,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:14,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1802 [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:34:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:15,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:15,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:15,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:15,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:15,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:15,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-26 22:34:15,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:34:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:15,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:15,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:15,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:15,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:15,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-26 22:34:15,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:34:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 177 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:15,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331337819] [2020-10-26 22:34:15,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:15,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:15,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835395834] [2020-10-26 22:34:15,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:15,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:15,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:15,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:15,867 INFO L87 Difference]: Start difference. First operand 1656 states and 2071 transitions. Second operand 8 states. [2020-10-26 22:34:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:17,947 INFO L93 Difference]: Finished difference Result 4218 states and 5436 transitions. [2020-10-26 22:34:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:34:17,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 304 [2020-10-26 22:34:17,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:17,964 INFO L225 Difference]: With dead ends: 4218 [2020-10-26 22:34:17,964 INFO L226 Difference]: Without dead ends: 2691 [2020-10-26 22:34:17,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:34:17,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2020-10-26 22:34:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2544. [2020-10-26 22:34:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2544 states. [2020-10-26 22:34:18,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3299 transitions. [2020-10-26 22:34:18,062 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3299 transitions. Word has length 304 [2020-10-26 22:34:18,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:18,063 INFO L481 AbstractCegarLoop]: Abstraction has 2544 states and 3299 transitions. [2020-10-26 22:34:18,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:18,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3299 transitions. [2020-10-26 22:34:18,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-26 22:34:18,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:18,072 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:18,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:34:18,073 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:18,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:18,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2064497504, now seen corresponding path program 1 times [2020-10-26 22:34:18,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:18,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312912453] [2020-10-26 22:34:18,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:18,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:18,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:18,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:23,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:23,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-26 22:34:23,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-26 22:34:23,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:34:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:34:23,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:23,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:23,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:23,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:23,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:23,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:23,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:34:23,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:23,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:23,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:23,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:23,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:23,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:34:23,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:23,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:23,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:23,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:23,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 22:34:23,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:34:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-26 22:34:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:23,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:23,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:23,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:23,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 22:34:23,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:34:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 208 proven. 86 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:34:23,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312912453] [2020-10-26 22:34:23,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:23,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:23,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883013197] [2020-10-26 22:34:23,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:23,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:23,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:23,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:23,892 INFO L87 Difference]: Start difference. First operand 2544 states and 3299 transitions. Second operand 7 states. [2020-10-26 22:34:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:26,225 INFO L93 Difference]: Finished difference Result 5682 states and 7415 transitions. [2020-10-26 22:34:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:26,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 340 [2020-10-26 22:34:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:26,245 INFO L225 Difference]: With dead ends: 5682 [2020-10-26 22:34:26,245 INFO L226 Difference]: Without dead ends: 3287 [2020-10-26 22:34:26,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:34:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2020-10-26 22:34:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3283. [2020-10-26 22:34:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3283 states. [2020-10-26 22:34:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4080 transitions. [2020-10-26 22:34:26,358 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4080 transitions. Word has length 340 [2020-10-26 22:34:26,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:26,359 INFO L481 AbstractCegarLoop]: Abstraction has 3283 states and 4080 transitions. [2020-10-26 22:34:26,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4080 transitions. [2020-10-26 22:34:26,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-26 22:34:26,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:26,370 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:34:26,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:34:26,370 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:26,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:26,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1940740312, now seen corresponding path program 1 times [2020-10-26 22:34:26,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:26,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097802650] [2020-10-26 22:34:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:26,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:26,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:28,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-26 22:34:28,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:28,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1704 [2020-10-26 22:34:28,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:34:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-26 22:34:28,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:28,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:28,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:28,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:28,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:28,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:34:28,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:28,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:28,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:28,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:28,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:28,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:34:28,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:28,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:28,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:28,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:28,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:28,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:28,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-26 22:34:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:28,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:34:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:34:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:28,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:28,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:28,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-26 22:34:28,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:34:28,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 289 proven. 5 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:34:28,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097802650] [2020-10-26 22:34:28,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:28,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:34:28,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091704031] [2020-10-26 22:34:28,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:34:28,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:28,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:34:28,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:34:28,938 INFO L87 Difference]: Start difference. First operand 3283 states and 4080 transitions. Second operand 6 states. [2020-10-26 22:34:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:30,631 INFO L93 Difference]: Finished difference Result 6469 states and 8213 transitions. [2020-10-26 22:34:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:34:30,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 359 [2020-10-26 22:34:30,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:30,650 INFO L225 Difference]: With dead ends: 6469 [2020-10-26 22:34:30,650 INFO L226 Difference]: Without dead ends: 3335 [2020-10-26 22:34:30,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:30,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2020-10-26 22:34:30,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2991. [2020-10-26 22:34:30,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2991 states. [2020-10-26 22:34:30,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 3517 transitions. [2020-10-26 22:34:30,761 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 3517 transitions. Word has length 359 [2020-10-26 22:34:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:30,762 INFO L481 AbstractCegarLoop]: Abstraction has 2991 states and 3517 transitions. [2020-10-26 22:34:30,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:34:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 3517 transitions. [2020-10-26 22:34:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-26 22:34:30,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:30,774 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-26 22:34:30,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:34:30,775 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:30,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:30,775 INFO L82 PathProgramCache]: Analyzing trace with hash 192788796, now seen corresponding path program 1 times [2020-10-26 22:34:30,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:30,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356657041] [2020-10-26 22:34:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:30,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:31,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:32,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:33,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2264 [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:34:33,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:33,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:33,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:33,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:33,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:33,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:33,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:33,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:34:33,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:33,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:34:33,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:34:33,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:33,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:34:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:33,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:34:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:33,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:33,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:34:33,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-26 22:34:33,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:34:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 315 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:34:33,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356657041] [2020-10-26 22:34:33,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:33,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:33,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957596774] [2020-10-26 22:34:33,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:33,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:33,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:33,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:33,827 INFO L87 Difference]: Start difference. First operand 2991 states and 3517 transitions. Second operand 7 states. [2020-10-26 22:34:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:36,192 INFO L93 Difference]: Finished difference Result 6713 states and 8023 transitions. [2020-10-26 22:34:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:34:36,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 378 [2020-10-26 22:34:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:36,213 INFO L225 Difference]: With dead ends: 6713 [2020-10-26 22:34:36,213 INFO L226 Difference]: Without dead ends: 3871 [2020-10-26 22:34:36,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:34:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2020-10-26 22:34:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3718. [2020-10-26 22:34:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3718 states. [2020-10-26 22:34:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3718 states to 3718 states and 4437 transitions. [2020-10-26 22:34:36,328 INFO L78 Accepts]: Start accepts. Automaton has 3718 states and 4437 transitions. Word has length 378 [2020-10-26 22:34:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:36,329 INFO L481 AbstractCegarLoop]: Abstraction has 3718 states and 4437 transitions. [2020-10-26 22:34:36,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3718 states and 4437 transitions. [2020-10-26 22:34:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-26 22:34:36,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:36,342 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-26 22:34:36,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:34:36,343 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1970346288, now seen corresponding path program 1 times [2020-10-26 22:34:36,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:36,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263413329] [2020-10-26 22:34:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:36,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1150 [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 22:34:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:37,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 22:34:37,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:37,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:34:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:37,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:34:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:37,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:37,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:34:37,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 123 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-26 22:34:38,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263413329] [2020-10-26 22:34:38,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:38,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:34:38,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840328483] [2020-10-26 22:34:38,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:34:38,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:38,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:34:38,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:34:38,173 INFO L87 Difference]: Start difference. First operand 3718 states and 4437 transitions. Second operand 5 states. [2020-10-26 22:34:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:39,942 INFO L93 Difference]: Finished difference Result 7576 states and 9050 transitions. [2020-10-26 22:34:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:34:39,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 388 [2020-10-26 22:34:39,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:39,945 INFO L225 Difference]: With dead ends: 7576 [2020-10-26 22:34:39,945 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:34:39,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 22:34:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:34:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:34:39,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:34:39,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:34:39,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 388 [2020-10-26 22:34:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:39,971 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:34:39,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:34:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:34:39,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:34:39,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:34:39,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:34:40,646 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 184 [2020-10-26 22:34:41,782 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 189 [2020-10-26 22:34:42,384 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 35 [2020-10-26 22:34:43,400 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 227 DAG size of output: 49 [2020-10-26 22:34:43,733 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 31 [2020-10-26 22:34:44,216 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 35 [2020-10-26 22:34:44,220 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:34:44,221 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:34:44,221 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:34:44,221 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:34:44,221 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:34:44,221 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 22:34:44,221 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:34:44,221 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:34:44,222 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:34:44,223 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:34:44,224 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,225 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:34:44,226 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:34:44,227 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,228 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,229 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:34:44,230 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:34:44,231 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:34:44,232 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse4 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse3 (= ~a19~0 |old(~a19~0)|) .cse4)) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse1 (not (<= |old(~a1~0)| 505272)))) (and (or .cse0 (not (= 0 |old(~a10~0)|)) .cse1) (or .cse0 .cse2 (not (<= |old(~a10~0)| 2))) (or .cse0 (not (= |old(~a10~0)| 1))) (or .cse0 .cse2 (not (= 4 |old(~a10~0)|))) (or (and (<= 9 ~a19~0) (<= ~a19~0 9) .cse3 .cse4) (not (= 9 |old(~a19~0)|))) (or (not (= 6 |old(~a19~0)|)) (and .cse3 (= ~a19~0 6) .cse4) .cse1)))) [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:34:44,233 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:34:44,234 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:34:44,235 INFO L270 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a1~0)| 505272))) (.cse1 (not (<= |old(~a19~0)| 9)))) (and (not (= 9 |old(~a19~0)|)) (or (not (= 0 |old(~a10~0)|)) .cse0) (not (= |old(~a10~0)| 1)) (or .cse1 (not (= 4 |old(~a10~0)|))) (or (not (= 6 |old(~a19~0)|)) .cse0) (or .cse1 (not (<= |old(~a10~0)| 2))))) [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L129-1(line 129) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,236 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,237 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 9 ~a19~0) (= ~a10~0 0) (<= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:34:44,238 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a19~0 9) (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:34:44,238 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a1~0 505272))) (or (and (<= ~a10~0 2) .cse0) (= ~a10~0 1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) .cse1) (and .cse0 (= ~a10~0 4)) (and .cse1 (= ~a19~0 6)) (= ~a19~0 |old(~a19~0)|) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:34:44,238 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:34:44,239 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:34:44,239 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a1~0 505272))) (or (and (<= ~a10~0 2) .cse0) (= ~a10~0 1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 0) .cse1) (and .cse0 (= ~a10~0 4)) (and .cse1 (= ~a19~0 6)) (= ~a19~0 |old(~a19~0)|) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:34:44,239 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:34:44,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:34:44 BoogieIcfgContainer [2020-10-26 22:34:44,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:34:44,269 INFO L168 Benchmark]: Toolchain (without parser) took 73060.38 ms. Allocated memory was 168.8 MB in the beginning and 1.1 GB in the end (delta: 887.1 MB). Free memory was 141.9 MB in the beginning and 777.1 MB in the end (delta: -635.3 MB). Peak memory consumption was 629.7 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:44,269 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:34:44,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.59 ms. Allocated memory is still 168.8 MB. Free memory was 141.2 MB in the beginning and 114.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:44,270 INFO L168 Benchmark]: Boogie Preprocessor took 147.24 ms. Allocated memory is still 168.8 MB. Free memory was 114.5 MB in the beginning and 109.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:44,271 INFO L168 Benchmark]: RCFGBuilder took 1449.04 ms. Allocated memory is still 168.8 MB. Free memory was 109.9 MB in the beginning and 56.6 MB in the end (delta: 53.3 MB). Peak memory consumption was 54.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:44,271 INFO L168 Benchmark]: TraceAbstraction took 70620.44 ms. Allocated memory was 168.8 MB in the beginning and 1.1 GB in the end (delta: 887.1 MB). Free memory was 56.6 MB in the beginning and 777.1 MB in the end (delta: -720.5 MB). Peak memory consumption was 544.1 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:44,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 826.59 ms. Allocated memory is still 168.8 MB. Free memory was 141.2 MB in the beginning and 114.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 147.24 ms. Allocated memory is still 168.8 MB. Free memory was 114.5 MB in the beginning and 109.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1449.04 ms. Allocated memory is still 168.8 MB. Free memory was 109.9 MB in the beginning and 56.6 MB in the end (delta: 53.3 MB). Peak memory consumption was 54.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 70620.44 ms. Allocated memory was 168.8 MB in the beginning and 1.1 GB in the end (delta: 887.1 MB). Free memory was 56.6 MB in the beginning and 777.1 MB in the end (delta: -720.5 MB). Peak memory consumption was 544.1 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: (((((((((a10 <= 2 && a19 <= 9) || a10 == 1) || !(9 <= \old(a19))) || !(\old(a19) <= 9)) || !(0 == \old(a10))) || (a10 == 0 && a1 <= 505272)) || (a19 <= 9 && a10 == 4)) || (a1 <= 505272 && a19 == 6)) || a19 == \old(a19)) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.2s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 27.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 4974 SDslu, 401 SDs, 0 SdLazy, 12318 SolverSat, 1732 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3718occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 1906 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 347 PreInvPairs, 405 NumberOfFragments, 363 HoareAnnotationTreeSize, 347 FomulaSimplifications, 924773 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11383 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 3143 NumberOfCodeBlocks, 3143 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3130 ConstructedInterpolants, 0 QuantifiedInterpolants, 2856644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 2276/2515 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...