/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_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:32:39,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:32:39,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:32:39,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:32:39,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:32:39,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:32:39,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:32:39,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:32:39,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:32:39,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:32:39,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:32:39,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:32:39,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:32:39,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:32:39,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:32:39,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:32:39,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:32:39,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:32:39,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:32:39,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:32:39,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:32:39,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:32:39,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:32:39,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:32:39,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:32:39,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:32:39,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:32:39,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:32:39,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:32:39,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:32:39,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:32:39,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:32:39,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:32:40,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:32:40,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:32:40,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:32:40,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:32:40,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:32:40,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:32:40,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:32:40,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:32:40,009 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 22:32:40,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:32:40,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:32:40,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:32:40,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:32:40,079 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:32:40,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:32:40,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:32:40,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:32:40,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:32:40,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:32:40,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:32:40,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:32:40,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:32:40,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:32:40,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:32:40,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:32:40,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:32:40,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:32:40,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:32:40,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:32:40,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:32:40,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:32:40,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:32:40,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:32:40,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:32:40,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:32:40,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:32:40,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:32:40,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:32:40,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:32:40,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:32:40,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:32:40,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:32:40,570 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:32:40,571 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:32:40,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label37.c [2020-10-26 22:32:40,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/274536b11/8d5b2b2606d4445490dc0785c2cf13c1/FLAG7ee079efa [2020-10-26 22:32:41,349 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:32:41,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label37.c [2020-10-26 22:32:41,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/274536b11/8d5b2b2606d4445490dc0785c2cf13c1/FLAG7ee079efa [2020-10-26 22:32:41,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/274536b11/8d5b2b2606d4445490dc0785c2cf13c1 [2020-10-26 22:32:41,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:32:41,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:32:41,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:41,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:32:41,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:32:41,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:41" (1/1) ... [2020-10-26 22:32:41,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd15aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:41, skipping insertion in model container [2020-10-26 22:32:41,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:41" (1/1) ... [2020-10-26 22:32:41,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:32:41,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:32:42,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:42,290 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:32:42,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:42,516 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:32:42,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42 WrapperNode [2020-10-26 22:32:42,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:42,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:32:42,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:32:42,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:32:42,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (1/1) ... [2020-10-26 22:32:42,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:32:42,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:32:42,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:32:42,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:32:42,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (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 22:32:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:32:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:32:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:32:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:32:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:32:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:32:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:32:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:32:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:32:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:32:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:32:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:32:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:32:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:32:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:32:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:32:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:32:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:32:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:32:44,572 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:32:44,573 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:32:44,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:44 BoogieIcfgContainer [2020-10-26 22:32:44,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:32:44,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:32:44,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:32:44,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:32:44,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:32:41" (1/3) ... [2020-10-26 22:32:44,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed95e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:44, skipping insertion in model container [2020-10-26 22:32:44,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:42" (2/3) ... [2020-10-26 22:32:44,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed95e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:44, skipping insertion in model container [2020-10-26 22:32:44,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:44" (3/3) ... [2020-10-26 22:32:44,584 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label37.c [2020-10-26 22:32:44,597 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:32:44,603 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:32:44,617 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:32:44,647 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:32:44,648 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:32:44,648 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:32:44,648 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:32:44,648 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:32:44,648 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:32:44,649 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:32:44,649 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:32:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:32:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-26 22:32:44,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:44,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:44,685 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:44,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:44,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1214644270, now seen corresponding path program 1 times [2020-10-26 22:32:44,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:44,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752484844] [2020-10-26 22:32:44,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:45,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-26 22:32:45,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-26 22:32:45,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 22:32:45,805 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:32:45,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:45,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:32:45,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:45,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:45,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:45,924 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 22:32:45,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752484844] [2020-10-26 22:32:45,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:45,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:32:45,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070534100] [2020-10-26 22:32:45,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:32:45,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:45,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:32:45,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:32:45,964 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:32:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:48,009 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:32:48,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:48,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-26 22:32:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:48,028 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:32:48,028 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:32:48,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:48,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:32:48,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:32:48,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:32:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:32:48,142 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 61 [2020-10-26 22:32:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:48,143 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:32:48,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:32:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:32:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-26 22:32:48,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:48,150 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:48,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:32:48,151 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:48,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:48,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2013809647, now seen corresponding path program 1 times [2020-10-26 22:32:48,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:48,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044865941] [2020-10-26 22:32:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:49,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:49,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-26 22:32:49,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:49,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1127 [2020-10-26 22:32:49,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:49,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:32:49,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:49,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-26 22:32:49,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:49,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:49,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:49,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:49,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:49,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 22:32:49,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:49,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:49,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:49,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:49,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:49,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:49,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-26 22:32:49,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:32:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:49,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044865941] [2020-10-26 22:32:49,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:49,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:49,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180040341] [2020-10-26 22:32:49,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:32:49,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:49,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:32:49,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:49,839 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 6 states. [2020-10-26 22:32:51,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:51,315 INFO L93 Difference]: Finished difference Result 606 states and 830 transitions. [2020-10-26 22:32:51,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:32:51,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2020-10-26 22:32:51,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:51,323 INFO L225 Difference]: With dead ends: 606 [2020-10-26 22:32:51,323 INFO L226 Difference]: Without dead ends: 603 [2020-10-26 22:32:51,324 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 22:32:51,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-26 22:32:51,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 444. [2020-10-26 22:32:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-26 22:32:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 621 transitions. [2020-10-26 22:32:51,372 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 621 transitions. Word has length 131 [2020-10-26 22:32:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:51,373 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 621 transitions. [2020-10-26 22:32:51,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:32:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 621 transitions. [2020-10-26 22:32:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-26 22:32:51,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:51,385 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:51,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:32:51,385 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:51,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:51,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1584385153, now seen corresponding path program 1 times [2020-10-26 22:32:51,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:51,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107576706] [2020-10-26 22:32:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:52,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:52,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:52,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-26 22:32:52,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1465 [2020-10-26 22:32:52,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:52,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:52,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:52,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 22:32:52,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:52,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:53,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:53,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:53,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:53,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:53,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:32:53,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:53,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:53,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:53,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:53,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:32:53,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:53,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-26 22:32:53,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:53,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107576706] [2020-10-26 22:32:53,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:53,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:32:53,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208767899] [2020-10-26 22:32:53,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:53,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:53,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:53,262 INFO L87 Difference]: Start difference. First operand 444 states and 621 transitions. Second operand 7 states. [2020-10-26 22:32:55,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:55,100 INFO L93 Difference]: Finished difference Result 1236 states and 1850 transitions. [2020-10-26 22:32:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:55,101 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-10-26 22:32:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:55,110 INFO L225 Difference]: With dead ends: 1236 [2020-10-26 22:32:55,110 INFO L226 Difference]: Without dead ends: 798 [2020-10-26 22:32:55,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-26 22:32:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 744. [2020-10-26 22:32:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-26 22:32:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1003 transitions. [2020-10-26 22:32:55,160 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1003 transitions. Word has length 134 [2020-10-26 22:32:55,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:55,160 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1003 transitions. [2020-10-26 22:32:55,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1003 transitions. [2020-10-26 22:32:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-26 22:32:55,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:55,163 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:55,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:32:55,164 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:55,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:55,165 INFO L82 PathProgramCache]: Analyzing trace with hash 835772877, now seen corresponding path program 1 times [2020-10-26 22:32:55,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:55,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525417800] [2020-10-26 22:32:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 22:32:55,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:55,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-26 22:32:55,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:55,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 22:32:55,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:55,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:55,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:55,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 22:32:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:55,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525417800] [2020-10-26 22:32:55,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:55,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:55,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769176296] [2020-10-26 22:32:55,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:55,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:55,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:55,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:55,792 INFO L87 Difference]: Start difference. First operand 744 states and 1003 transitions. Second operand 5 states. [2020-10-26 22:32:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:57,380 INFO L93 Difference]: Finished difference Result 1782 states and 2478 transitions. [2020-10-26 22:32:57,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:57,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-26 22:32:57,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:57,396 INFO L225 Difference]: With dead ends: 1782 [2020-10-26 22:32:57,396 INFO L226 Difference]: Without dead ends: 1044 [2020-10-26 22:32:57,399 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 22:32:57,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-26 22:32:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 895. [2020-10-26 22:32:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-26 22:32:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1141 transitions. [2020-10-26 22:32:57,443 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1141 transitions. Word has length 140 [2020-10-26 22:32:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:57,445 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1141 transitions. [2020-10-26 22:32:57,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1141 transitions. [2020-10-26 22:32:57,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-26 22:32:57,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:57,450 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:57,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:32:57,451 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:57,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:57,451 INFO L82 PathProgramCache]: Analyzing trace with hash -390968090, now seen corresponding path program 1 times [2020-10-26 22:32:57,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:57,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642867603] [2020-10-26 22:32:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-26 22:32:59,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1981 [2020-10-26 22:32:59,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:32:59,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:59,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:59,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:32:59,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:59,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-26 22:32:59,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:32:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:59,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:00,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:00,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:33:00,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-26 22:33:00,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:33:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:00,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642867603] [2020-10-26 22:33:00,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:00,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:00,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168686982] [2020-10-26 22:33:00,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:00,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:00,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:00,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:00,439 INFO L87 Difference]: Start difference. First operand 895 states and 1141 transitions. Second operand 7 states. [2020-10-26 22:33:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:02,087 INFO L93 Difference]: Finished difference Result 1853 states and 2404 transitions. [2020-10-26 22:33:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:02,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-10-26 22:33:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:02,094 INFO L225 Difference]: With dead ends: 1853 [2020-10-26 22:33:02,094 INFO L226 Difference]: Without dead ends: 937 [2020-10-26 22:33:02,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-10-26 22:33:02,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 899. [2020-10-26 22:33:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-26 22:33:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1141 transitions. [2020-10-26 22:33:02,132 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1141 transitions. Word has length 213 [2020-10-26 22:33:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:02,132 INFO L481 AbstractCegarLoop]: Abstraction has 899 states and 1141 transitions. [2020-10-26 22:33:02,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1141 transitions. [2020-10-26 22:33:02,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-26 22:33:02,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:02,137 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 22:33:02,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:33:02,137 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:02,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:02,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1528580748, now seen corresponding path program 1 times [2020-10-26 22:33:02,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:02,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865033323] [2020-10-26 22:33:02,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:02,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:02,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:03,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-26 22:33:03,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-26 22:33:03,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:33:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:03,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:03,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:03,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:04,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:04,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:04,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:04,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:04,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:04,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:04,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:04,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:04,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:04,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:04,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:33:04,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:33:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:04,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:33:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:04,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:04,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:04,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:04,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-26 22:33:04,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:04,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865033323] [2020-10-26 22:33:04,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:04,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:04,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202060676] [2020-10-26 22:33:04,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:04,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:04,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:04,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:04,404 INFO L87 Difference]: Start difference. First operand 899 states and 1141 transitions. Second operand 7 states. [2020-10-26 22:33:06,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:06,170 INFO L93 Difference]: Finished difference Result 2114 states and 2799 transitions. [2020-10-26 22:33:06,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:06,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-26 22:33:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:06,184 INFO L225 Difference]: With dead ends: 2114 [2020-10-26 22:33:06,184 INFO L226 Difference]: Without dead ends: 1221 [2020-10-26 22:33:06,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2020-10-26 22:33:06,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1203. [2020-10-26 22:33:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2020-10-26 22:33:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1573 transitions. [2020-10-26 22:33:06,254 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1573 transitions. Word has length 221 [2020-10-26 22:33:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:06,255 INFO L481 AbstractCegarLoop]: Abstraction has 1203 states and 1573 transitions. [2020-10-26 22:33:06,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1573 transitions. [2020-10-26 22:33:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-26 22:33:06,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:06,261 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:33:06,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:33:06,261 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:06,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:06,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1264327950, now seen corresponding path program 1 times [2020-10-26 22:33:06,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:06,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975282443] [2020-10-26 22:33:06,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:08,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:10,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:10,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:10,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-26 22:33:10,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4661 [2020-10-26 22:33:10,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:33:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:11,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:11,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:11,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:11,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:11,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:33:11,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:11,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:11,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:11,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:11,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:11,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:11,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:11,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:11,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:33:11,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:11,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-26 22:33:11,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:33:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:11,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:33:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:11,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:11,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:11,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 106 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:33:11,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975282443] [2020-10-26 22:33:11,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:11,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:11,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363038567] [2020-10-26 22:33:11,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:11,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:11,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:11,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:11,657 INFO L87 Difference]: Start difference. First operand 1203 states and 1573 transitions. Second operand 7 states. [2020-10-26 22:33:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:13,142 INFO L93 Difference]: Finished difference Result 2569 states and 3354 transitions. [2020-10-26 22:33:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:33:13,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-26 22:33:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:13,153 INFO L225 Difference]: With dead ends: 2569 [2020-10-26 22:33:13,153 INFO L226 Difference]: Without dead ends: 1372 [2020-10-26 22:33:13,157 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 22:33:13,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2020-10-26 22:33:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1356. [2020-10-26 22:33:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1356 states. [2020-10-26 22:33:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1744 transitions. [2020-10-26 22:33:13,210 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1744 transitions. Word has length 228 [2020-10-26 22:33:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:13,211 INFO L481 AbstractCegarLoop]: Abstraction has 1356 states and 1744 transitions. [2020-10-26 22:33:13,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1744 transitions. [2020-10-26 22:33:13,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-26 22:33:13,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:13,217 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:33:13,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:33:13,218 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:13,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:13,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1387389836, now seen corresponding path program 1 times [2020-10-26 22:33:13,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:13,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601652036] [2020-10-26 22:33:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:13,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:14,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:17,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:17,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-26 22:33:17,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:17,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3998 [2020-10-26 22:33:17,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:33:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-26 22:33:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:33:17,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:17,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:17,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:33:17,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:17,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:17,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:17,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:17,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:17,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:17,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:17,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-26 22:33:17,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:17,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:33:17,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:17,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:33:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:17,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:17,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:33:17,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:17,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-26 22:33:17,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:17,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:33:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:18,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601652036] [2020-10-26 22:33:18,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:18,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:18,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139490906] [2020-10-26 22:33:18,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:18,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:18,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:18,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:18,095 INFO L87 Difference]: Start difference. First operand 1356 states and 1744 transitions. Second operand 7 states. [2020-10-26 22:33:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:19,805 INFO L93 Difference]: Finished difference Result 2585 states and 3370 transitions. [2020-10-26 22:33:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:19,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-10-26 22:33:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:19,814 INFO L225 Difference]: With dead ends: 2585 [2020-10-26 22:33:19,815 INFO L226 Difference]: Without dead ends: 1378 [2020-10-26 22:33:19,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2020-10-26 22:33:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1207. [2020-10-26 22:33:19,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-10-26 22:33:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1395 transitions. [2020-10-26 22:33:19,864 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1395 transitions. Word has length 272 [2020-10-26 22:33:19,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:19,865 INFO L481 AbstractCegarLoop]: Abstraction has 1207 states and 1395 transitions. [2020-10-26 22:33:19,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1395 transitions. [2020-10-26 22:33:19,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-26 22:33:19,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:19,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:33:19,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:33:19,874 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:19,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:19,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1626592346, now seen corresponding path program 1 times [2020-10-26 22:33:19,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:19,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066381683] [2020-10-26 22:33:19,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:20,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:20,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:20,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:22,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:22,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-26 22:33:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2905 [2020-10-26 22:33:22,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:33:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:33:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:33:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:23,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:23,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:23,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:23,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:23,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:23,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:23,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:23,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:23,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:23,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:23,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:23,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:23,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:33:23,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:33:23,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:23,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:23,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:23,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:23,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:33:23,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:23,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-26 22:33:23,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:23,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:33:23,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:23,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:33:23,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 203 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:23,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066381683] [2020-10-26 22:33:23,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:23,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:33:23,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823459534] [2020-10-26 22:33:23,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:23,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:23,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:23,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:23,802 INFO L87 Difference]: Start difference. First operand 1207 states and 1395 transitions. Second operand 8 states. [2020-10-26 22:33:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:25,839 INFO L93 Difference]: Finished difference Result 3185 states and 3766 transitions. [2020-10-26 22:33:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:25,839 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 317 [2020-10-26 22:33:25,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:25,851 INFO L225 Difference]: With dead ends: 3185 [2020-10-26 22:33:25,851 INFO L226 Difference]: Without dead ends: 2107 [2020-10-26 22:33:25,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:25,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2020-10-26 22:33:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1809. [2020-10-26 22:33:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2020-10-26 22:33:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2159 transitions. [2020-10-26 22:33:25,917 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2159 transitions. Word has length 317 [2020-10-26 22:33:25,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:25,918 INFO L481 AbstractCegarLoop]: Abstraction has 1809 states and 2159 transitions. [2020-10-26 22:33:25,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2159 transitions. [2020-10-26 22:33:25,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-26 22:33:25,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:25,926 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:33:25,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:33:25,926 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:25,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:25,927 INFO L82 PathProgramCache]: Analyzing trace with hash -234265109, now seen corresponding path program 1 times [2020-10-26 22:33:25,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:25,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106350070] [2020-10-26 22:33:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:26,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:28,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4676 [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:33:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:33:30,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:30,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:33:30,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:30,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-26 22:33:30,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:33:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:31,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:31,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:33:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-26 22:33:31,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:33:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:31,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:33:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:31,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:31,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:31,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:33:31,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 237 proven. 76 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:33:31,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106350070] [2020-10-26 22:33:31,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:31,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:31,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481512259] [2020-10-26 22:33:31,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:31,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:31,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:31,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:31,305 INFO L87 Difference]: Start difference. First operand 1809 states and 2159 transitions. Second operand 7 states. [2020-10-26 22:33:33,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:33,246 INFO L93 Difference]: Finished difference Result 4063 states and 4915 transitions. [2020-10-26 22:33:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:33,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 343 [2020-10-26 22:33:33,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:33,263 INFO L225 Difference]: With dead ends: 4063 [2020-10-26 22:33:33,263 INFO L226 Difference]: Without dead ends: 2403 [2020-10-26 22:33:33,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:33,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2020-10-26 22:33:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2397. [2020-10-26 22:33:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2020-10-26 22:33:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 2795 transitions. [2020-10-26 22:33:33,347 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 2795 transitions. Word has length 343 [2020-10-26 22:33:33,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:33,348 INFO L481 AbstractCegarLoop]: Abstraction has 2397 states and 2795 transitions. [2020-10-26 22:33:33,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:33,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 2795 transitions. [2020-10-26 22:33:33,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-26 22:33:33,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:33,357 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:33:33,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:33:33,358 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:33,359 INFO L82 PathProgramCache]: Analyzing trace with hash -993312303, now seen corresponding path program 1 times [2020-10-26 22:33:33,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:33,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103709402] [2020-10-26 22:33:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:33,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:33,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-26 22:33:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2288 [2020-10-26 22:33:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:33:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:35,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:35,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:35,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:35,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:33:35,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:35,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:35,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:35,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 22:33:35,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:35,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:33:35,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:36,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:33:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:36,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:36,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:36,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-26 22:33:36,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:33:36,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103709402] [2020-10-26 22:33:36,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:36,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:36,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593781703] [2020-10-26 22:33:36,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:36,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:36,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:36,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:36,221 INFO L87 Difference]: Start difference. First operand 2397 states and 2795 transitions. Second operand 7 states. [2020-10-26 22:33:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:37,829 INFO L93 Difference]: Finished difference Result 5100 states and 6068 transitions. [2020-10-26 22:33:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:37,830 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-10-26 22:33:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:37,843 INFO L225 Difference]: With dead ends: 5100 [2020-10-26 22:33:37,844 INFO L226 Difference]: Without dead ends: 2852 [2020-10-26 22:33:37,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-26 22:33:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2691. [2020-10-26 22:33:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2691 states. [2020-10-26 22:33:37,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3151 transitions. [2020-10-26 22:33:37,927 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3151 transitions. Word has length 362 [2020-10-26 22:33:37,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:37,928 INFO L481 AbstractCegarLoop]: Abstraction has 2691 states and 3151 transitions. [2020-10-26 22:33:37,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3151 transitions. [2020-10-26 22:33:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-26 22:33:37,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:37,938 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:33:37,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:33:37,939 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:37,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:37,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1884340709, now seen corresponding path program 1 times [2020-10-26 22:33:37,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:37,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695614678] [2020-10-26 22:33:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:39,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:40,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 388 [2020-10-26 22:33:41,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3048 [2020-10-26 22:33:41,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:41,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:33:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-26 22:33:41,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:41,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:33:41,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:41,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:33:41,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:41,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:41,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-26 22:33:41,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:33:41,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:33:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:41,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:41,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 279 proven. 54 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:33:41,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695614678] [2020-10-26 22:33:41,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:41,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:33:41,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141130266] [2020-10-26 22:33:41,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:33:41,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:41,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:33:41,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:41,631 INFO L87 Difference]: Start difference. First operand 2691 states and 3151 transitions. Second operand 6 states. [2020-10-26 22:33:43,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:43,230 INFO L93 Difference]: Finished difference Result 6260 states and 7460 transitions. [2020-10-26 22:33:43,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:33:43,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 372 [2020-10-26 22:33:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:43,255 INFO L225 Difference]: With dead ends: 6260 [2020-10-26 22:33:43,255 INFO L226 Difference]: Without dead ends: 3718 [2020-10-26 22:33:43,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2020-10-26 22:33:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3285. [2020-10-26 22:33:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3285 states. [2020-10-26 22:33:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 3839 transitions. [2020-10-26 22:33:43,365 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 3839 transitions. Word has length 372 [2020-10-26 22:33:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:43,365 INFO L481 AbstractCegarLoop]: Abstraction has 3285 states and 3839 transitions. [2020-10-26 22:33:43,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:33:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 3839 transitions. [2020-10-26 22:33:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-26 22:33:43,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:43,373 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:43,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:33:43,373 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:43,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1394882569, now seen corresponding path program 1 times [2020-10-26 22:33:43,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:43,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933377] [2020-10-26 22:33:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:43,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:43,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 22:33:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:44,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:44,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:44,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:44,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:44,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:44,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:44,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:44,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:44,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:44,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:44,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:44,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:44,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 22:33:44,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:44,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:44,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:44,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:44,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:44,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:33:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:44,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:33:44,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-26 22:33:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:33:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 162 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:33:44,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933377] [2020-10-26 22:33:44,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:44,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:44,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153626213] [2020-10-26 22:33:44,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:44,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:44,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:44,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:44,569 INFO L87 Difference]: Start difference. First operand 3285 states and 3839 transitions. Second operand 5 states. [2020-10-26 22:33:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:45,989 INFO L93 Difference]: Finished difference Result 4008 states and 4728 transitions. [2020-10-26 22:33:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:45,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 375 [2020-10-26 22:33:45,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:45,992 INFO L225 Difference]: With dead ends: 4008 [2020-10-26 22:33:45,993 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:33:45,999 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 22:33:46,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:33:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:33:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:33:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:33:46,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 375 [2020-10-26 22:33:46,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:46,000 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:33:46,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:33:46,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:33:46,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:33:46,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:33:46,779 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 187 [2020-10-26 22:33:47,980 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 187 [2020-10-26 22:33:48,278 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 40 [2020-10-26 22:33:49,055 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 48 [2020-10-26 22:33:49,954 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 51 [2020-10-26 22:33:50,719 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 48 [2020-10-26 22:33:50,724 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:33:50,724 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:33:50,724 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:33:50,725 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:33:50,725 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:50,725 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 22:33:50,725 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:50,726 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:33:50,726 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:33:50,726 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:33:50,726 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:33:50,726 INFO L270 CegarLoopResult]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~a10~0)|))) (.cse4 (not (<= (+ |old(~a1~0)| 75821) 0))) (.cse2 (not (<= 8 |old(~a19~0)|))) (.cse1 (not (<= 2 |old(~a10~0)|))) (.cse5 (not (= |old(~a10~0)| 1))) (.cse3 (not (<= |old(~a1~0)| 505272)))) (and (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse1 (not (<= |old(~a10~0)| 2))) (or .cse2 .cse0 .cse3) (or .cse1 .cse3 (not (<= |old(~a10~0)| 3))) (or .cse4 .cse0) (or .cse5 .cse2) (or .cse4 .cse1) (or .cse2 .cse1) (or .cse5 .cse3))) [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L168-1(line 168) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:33:50,727 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:33:50,728 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,729 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:33:50,730 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,731 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:33:50,732 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:33:50,733 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,734 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:33:50,735 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:33:50,736 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,737 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:33:50,738 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,739 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse4 (not (= |old(~a10~0)| 1))) (.cse1 (not (= 0 |old(~a10~0)|))) (.cse5 (not (<= |old(~a1~0)| 505272))) (.cse6 (not (<= 8 |old(~a19~0)|))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse2 (not (<= (+ |old(~a1~0)| 75821) 0))) (.cse3 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 (not (= 9 |old(~a19~0)|)) .cse1) (or .cse0 .cse2 .cse1) (or .cse0 .cse3 (not (<= |old(~a10~0)| 2))) (or .cse0 .cse4 .cse5) (or .cse0 .cse3 .cse5 (not (<= |old(~a10~0)| 3))) (or .cse0 .cse4 .cse6) (or .cse0 .cse6 .cse1 .cse5) (or .cse0 .cse6 .cse3) (or .cse0 .cse2 .cse3))) [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:33:50,740 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,741 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:33:50,742 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:33:50,743 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:33:50,743 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:33:50,743 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:33:50,743 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:33:50,743 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,743 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:33:50,744 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:50,745 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:50,746 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:33:50,746 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:33:50,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:50,746 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-26 22:33:50,746 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:50,747 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= (+ ~a1~0 75821) 0)) (.cse1 (<= 2 ~a10~0)) (.cse3 (= ~a10~0 1)) (.cse6 (<= 8 ~a19~0)) (.cse2 (= ~a10~0 0)) (.cse4 (<= ~a1~0 505272)) (.cse5 (or (not (= |old(~a10~0)| 1)) (<= (+ |old(~a1~0)| 13) 0)))) (or (and .cse0 .cse1) (and .cse2 (= ~a19~0 9)) (and .cse3 .cse4) (and (<= ~a10~0 2) .cse1) (and .cse4 .cse1 (<= ~a10~0 3)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse4 .cse0 .cse5) (and .cse6 .cse1) (and .cse3 .cse6) (and .cse6 .cse2 .cse4 .cse5) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:33:50,747 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:33:50,747 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:33:50,747 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= (+ ~a1~0 75821) 0)) (.cse1 (<= 2 ~a10~0)) (.cse3 (= ~a10~0 1)) (.cse6 (<= 8 ~a19~0)) (.cse2 (= ~a10~0 0)) (.cse4 (<= ~a1~0 505272)) (.cse5 (or (not (= |old(~a10~0)| 1)) (<= (+ |old(~a1~0)| 13) 0)))) (or (and .cse0 .cse1) (and .cse2 (= ~a19~0 9)) (and .cse3 .cse4) (and (<= ~a10~0 2) .cse1) (and .cse4 .cse1 (<= ~a10~0 3)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse4 .cse0 .cse5) (and .cse6 .cse1) (and .cse3 .cse6) (and .cse6 .cse2 .cse4 .cse5) (not (= 23 |old(~a1~0)|)))) [2020-10-26 22:33:50,747 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:50,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:50 BoogieIcfgContainer [2020-10-26 22:33:50,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:33:50,770 INFO L168 Benchmark]: Toolchain (without parser) took 69127.64 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 898.6 MB). Free memory was 124.5 MB in the beginning and 831.4 MB in the end (delta: -706.9 MB). Peak memory consumption was 626.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:50,771 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:33:50,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.96 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 128.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:50,772 INFO L168 Benchmark]: Boogie Preprocessor took 172.59 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 123.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:50,772 INFO L168 Benchmark]: RCFGBuilder took 1879.70 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 102.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:50,773 INFO L168 Benchmark]: TraceAbstraction took 66191.60 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 898.6 MB). Free memory was 102.3 MB in the beginning and 831.4 MB in the end (delta: -729.1 MB). Peak memory consumption was 604.1 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:50,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 865.96 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 128.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 172.59 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 123.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1879.70 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 102.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 66191.60 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 898.6 MB). Free memory was 102.3 MB in the beginning and 831.4 MB in the end (delta: -729.1 MB). Peak memory consumption was 604.1 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: (((((((((((a1 + 75821 <= 0 && 2 <= a10) || (a10 == 0 && a19 == 9)) || (a10 == 1 && a1 <= 505272)) || (a10 <= 2 && 2 <= a10)) || ((a1 <= 505272 && 2 <= a10) && a10 <= 3)) || !(9 == \old(a19))) || !(0 == \old(a10))) || (((a10 == 0 && a1 <= 505272) && a1 + 75821 <= 0) && (!(\old(a10) == 1) || \old(a1) + 13 <= 0))) || (8 <= a19 && 2 <= a10)) || (a10 == 1 && 8 <= a19)) || (((8 <= a19 && a10 == 0) && a1 <= 505272) && (!(\old(a10) == 1) || \old(a1) + 13 <= 0))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 61.3s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 22.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 341 SDtfs, 5043 SDslu, 402 SDs, 0 SdLazy, 10716 SolverSat, 1761 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3285occurred 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: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1507 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 253 PreInvPairs, 313 NumberOfFragments, 592 HoareAnnotationTreeSize, 253 FomulaSimplifications, 674208 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 24400 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 35.9s InterpolantComputationTime, 3169 NumberOfCodeBlocks, 3169 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3156 ConstructedInterpolants, 0 QuantifiedInterpolants, 2485852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 2460/2741 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...