/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:11:38,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:11:38,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:11:38,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:11:38,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:11:38,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:11:38,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:11:38,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:11:38,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:11:38,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:11:38,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:11:38,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:11:38,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:11:38,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:11:38,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:11:38,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:11:38,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:11:38,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:11:38,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:11:38,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:11:38,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:11:38,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:11:38,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:11:38,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:11:38,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:11:38,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:11:38,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:11:38,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:11:38,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:11:38,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:11:38,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:11:38,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:11:38,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:11:38,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:11:38,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:11:38,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:11:38,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:11:38,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:11:38,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:11:38,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:11:38,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:11:38,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:11:38,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:11:38,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:11:38,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:11:38,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:11:38,819 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:11:38,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:11:38,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:11:38,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:11:38,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:11:38,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:11:38,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:11:38,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:11:38,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:11:38,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:11:38,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:11:38,821 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:11:38,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:11:38,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:11:38,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:11:38,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:11:38,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:11:38,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:11:38,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:11:38,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:11:38,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:11:38,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:11:38,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:11:38,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:11:38,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:11:38,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:11:39,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:11:39,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:11:39,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:11:39,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:11:39,313 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:11:39,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label59.c [2020-10-28 10:11:39,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27ed2a1e2/bd2e2271e9b04e46a49aebfd9f2200aa/FLAG34745c13b [2020-10-28 10:11:40,242 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:11:40,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label59.c [2020-10-28 10:11:40,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27ed2a1e2/bd2e2271e9b04e46a49aebfd9f2200aa/FLAG34745c13b [2020-10-28 10:11:40,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27ed2a1e2/bd2e2271e9b04e46a49aebfd9f2200aa [2020-10-28 10:11:40,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:11:40,485 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:11:40,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:11:40,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:11:40,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:11:40,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:11:40" (1/1) ... [2020-10-28 10:11:40,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7591c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:40, skipping insertion in model container [2020-10-28 10:11:40,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:11:40" (1/1) ... [2020-10-28 10:11:40,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:11:40,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:11:41,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:11:41,034 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:11:41,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:11:41,198 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:11:41,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41 WrapperNode [2020-10-28 10:11:41,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:11:41,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:11:41,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:11:41,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:11:41,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... [2020-10-28 10:11:41,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:11:41,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:11:41,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:11:41,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:11:41,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:11:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:11:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:11:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:11:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:11:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:11:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:11:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:11:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:11:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:11:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:11:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:11:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:11:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:11:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:11:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:11:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:11:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:11:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:11:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:11:42,804 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:11:42,804 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:11:42,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:11:42 BoogieIcfgContainer [2020-10-28 10:11:42,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:11:42,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:11:42,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:11:42,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:11:42,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:11:40" (1/3) ... [2020-10-28 10:11:42,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc0da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:11:42, skipping insertion in model container [2020-10-28 10:11:42,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:41" (2/3) ... [2020-10-28 10:11:42,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc0da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:11:42, skipping insertion in model container [2020-10-28 10:11:42,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:11:42" (3/3) ... [2020-10-28 10:11:42,817 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label59.c [2020-10-28 10:11:42,831 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:11:42,837 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:11:42,852 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:11:42,886 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:11:42,886 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:11:42,886 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:11:42,887 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:11:42,887 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:11:42,887 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:11:42,887 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:11:42,887 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:11:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-28 10:11:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 10:11:42,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:42,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:42,929 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:42,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:42,937 INFO L82 PathProgramCache]: Analyzing trace with hash -152954131, now seen corresponding path program 1 times [2020-10-28 10:11:42,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:42,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185617194] [2020-10-28 10:11:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:43,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:43,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:44,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:44,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 10:11:44,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:44,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1671 [2020-10-28 10:11:44,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:44,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:11:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 10:11:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:11:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:45,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:45,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:45,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 10:11:45,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:45,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:45,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:45,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:45,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185617194] [2020-10-28 10:11:45,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:11:45,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:11:45,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944423864] [2020-10-28 10:11:45,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:11:45,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:45,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:11:45,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:11:45,367 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-28 10:11:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:47,606 INFO L93 Difference]: Finished difference Result 676 states and 1131 transitions. [2020-10-28 10:11:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:47,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2020-10-28 10:11:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:47,625 INFO L225 Difference]: With dead ends: 676 [2020-10-28 10:11:47,625 INFO L226 Difference]: Without dead ends: 342 [2020-10-28 10:11:47,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-28 10:11:47,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 333. [2020-10-28 10:11:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-28 10:11:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 481 transitions. [2020-10-28 10:11:47,723 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 481 transitions. Word has length 90 [2020-10-28 10:11:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:47,724 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 481 transitions. [2020-10-28 10:11:47,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:11:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 481 transitions. [2020-10-28 10:11:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 10:11:47,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:47,732 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:47,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:11:47,732 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:47,733 INFO L82 PathProgramCache]: Analyzing trace with hash 934521889, now seen corresponding path program 1 times [2020-10-28 10:11:47,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:47,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042339515] [2020-10-28 10:11:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:48,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:48,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:48,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 10:11:48,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:48,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-28 10:11:48,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:48,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 10:11:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 10:11:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:48,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:48,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:48,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:48,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:48,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:48,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:48,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:11:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:48,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:48,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:48,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:11:48,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:48,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:11:48,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:48,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:48,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:48,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:11:48,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:48,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042339515] [2020-10-28 10:11:48,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:48,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:48,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789518196] [2020-10-28 10:11:48,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:48,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:48,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:48,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:48,988 INFO L87 Difference]: Start difference. First operand 333 states and 481 transitions. Second operand 5 states. [2020-10-28 10:11:49,221 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:11:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:50,884 INFO L93 Difference]: Finished difference Result 961 states and 1418 transitions. [2020-10-28 10:11:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:50,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-28 10:11:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:50,902 INFO L225 Difference]: With dead ends: 961 [2020-10-28 10:11:50,902 INFO L226 Difference]: Without dead ends: 634 [2020-10-28 10:11:50,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-28 10:11:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 628. [2020-10-28 10:11:51,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-10-28 10:11:51,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-10-28 10:11:51,014 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 98 [2020-10-28 10:11:51,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:51,015 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-10-28 10:11:51,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-10-28 10:11:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 10:11:51,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:51,025 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:51,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:11:51,026 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:51,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:51,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1449390716, now seen corresponding path program 1 times [2020-10-28 10:11:51,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:51,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449529201] [2020-10-28 10:11:51,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:51,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:51,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:51,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:51,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 10:11:51,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:51,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-28 10:11:51,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:51,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 10:11:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 10:11:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:52,008 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 10:11:52,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:52,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:52,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:52,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:52,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:52,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:52,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:52,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:52,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:52,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:52,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:52,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 10:11:52,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:11:52,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:52,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 10:11:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:52,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449529201] [2020-10-28 10:11:52,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:52,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:52,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263398094] [2020-10-28 10:11:52,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:52,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:52,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:52,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:52,107 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 5 states. [2020-10-28 10:11:53,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:53,939 INFO L93 Difference]: Finished difference Result 1847 states and 2448 transitions. [2020-10-28 10:11:53,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:53,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-28 10:11:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:53,952 INFO L225 Difference]: With dead ends: 1847 [2020-10-28 10:11:53,952 INFO L226 Difference]: Without dead ends: 930 [2020-10-28 10:11:53,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:53,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-10-28 10:11:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 917. [2020-10-28 10:11:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-10-28 10:11:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1144 transitions. [2020-10-28 10:11:54,016 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1144 transitions. Word has length 103 [2020-10-28 10:11:54,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:54,018 INFO L481 AbstractCegarLoop]: Abstraction has 917 states and 1144 transitions. [2020-10-28 10:11:54,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1144 transitions. [2020-10-28 10:11:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 10:11:54,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:54,033 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 10:11:54,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:11:54,033 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:54,034 INFO L82 PathProgramCache]: Analyzing trace with hash 378521140, now seen corresponding path program 1 times [2020-10-28 10:11:54,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:54,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864035462] [2020-10-28 10:11:54,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:54,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:54,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:54,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:55,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:55,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 10:11:55,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:11:55,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-10-28 10:11:55,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:55,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:11:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:55,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:55,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:55,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:55,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:55,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:55,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:55,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:55,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:55,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:55,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:55,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 10:11:55,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:55,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 10:11:55,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:55,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 10:11:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:55,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:55,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864035462] [2020-10-28 10:11:55,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:11:55,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 10:11:55,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835691317] [2020-10-28 10:11:55,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:55,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:55,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:55,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:55,318 INFO L87 Difference]: Start difference. First operand 917 states and 1144 transitions. Second operand 5 states. [2020-10-28 10:11:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:56,983 INFO L93 Difference]: Finished difference Result 2421 states and 3133 transitions. [2020-10-28 10:11:56,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:56,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-28 10:11:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:56,995 INFO L225 Difference]: With dead ends: 2421 [2020-10-28 10:11:56,995 INFO L226 Difference]: Without dead ends: 1510 [2020-10-28 10:11:56,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2020-10-28 10:11:57,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1503. [2020-10-28 10:11:57,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2020-10-28 10:11:57,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1865 transitions. [2020-10-28 10:11:57,080 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1865 transitions. Word has length 111 [2020-10-28 10:11:57,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:57,080 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states and 1865 transitions. [2020-10-28 10:11:57,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1865 transitions. [2020-10-28 10:11:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-28 10:11:57,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:57,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:57,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:11:57,089 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:57,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1536245110, now seen corresponding path program 1 times [2020-10-28 10:11:57,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:57,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529352846] [2020-10-28 10:11:57,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:57,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 10:11:57,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-10-28 10:11:57,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:57,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:11:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 10:11:57,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:57,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:57,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:57,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:57,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 10:11:57,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:57,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:57,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:57,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:57,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 10:11:57,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:57,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 10:11:57,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:57,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 10:11:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:57,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529352846] [2020-10-28 10:11:57,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:11:57,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 10:11:57,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177959842] [2020-10-28 10:11:57,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:57,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:57,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:57,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:57,813 INFO L87 Difference]: Start difference. First operand 1503 states and 1865 transitions. Second operand 7 states. [2020-10-28 10:11:57,963 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:11:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:59,957 INFO L93 Difference]: Finished difference Result 4384 states and 5745 transitions. [2020-10-28 10:11:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:11:59,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-28 10:11:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:59,981 INFO L225 Difference]: With dead ends: 4384 [2020-10-28 10:11:59,982 INFO L226 Difference]: Without dead ends: 2887 [2020-10-28 10:11:59,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:59,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2020-10-28 10:12:00,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2261. [2020-10-28 10:12:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-10-28 10:12:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2856 transitions. [2020-10-28 10:12:00,117 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2856 transitions. Word has length 122 [2020-10-28 10:12:00,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:00,118 INFO L481 AbstractCegarLoop]: Abstraction has 2261 states and 2856 transitions. [2020-10-28 10:12:00,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:12:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2856 transitions. [2020-10-28 10:12:00,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 10:12:00,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:00,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:12:00,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:12:00,126 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:00,126 INFO L82 PathProgramCache]: Analyzing trace with hash -882088090, now seen corresponding path program 1 times [2020-10-28 10:12:00,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:00,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113565837] [2020-10-28 10:12:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:00,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:01,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:01,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 10:12:01,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:12:01,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 916 [2020-10-28 10:12:01,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:01,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:01,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:01,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 10:12:01,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 10:12:01,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:01,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:01,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:01,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:01,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:12:01,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:01,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:01,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:01,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:01,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:01,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 10:12:01,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:01,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:12:01,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:01,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:01,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 10:12:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:12:01,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113565837] [2020-10-28 10:12:01,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:01,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:12:01,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522301566] [2020-10-28 10:12:01,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:12:01,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:01,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:12:01,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:12:01,322 INFO L87 Difference]: Start difference. First operand 2261 states and 2856 transitions. Second operand 5 states. [2020-10-28 10:12:01,527 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:12:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:03,128 INFO L93 Difference]: Finished difference Result 4523 states and 5759 transitions. [2020-10-28 10:12:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:12:03,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-28 10:12:03,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:03,147 INFO L225 Difference]: With dead ends: 4523 [2020-10-28 10:12:03,147 INFO L226 Difference]: Without dead ends: 2268 [2020-10-28 10:12:03,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:12:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2020-10-28 10:12:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2117. [2020-10-28 10:12:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-10-28 10:12:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2570 transitions. [2020-10-28 10:12:03,237 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2570 transitions. Word has length 124 [2020-10-28 10:12:03,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:03,237 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 2570 transitions. [2020-10-28 10:12:03,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:12:03,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2570 transitions. [2020-10-28 10:12:03,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-28 10:12:03,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:03,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:12:03,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:12:03,244 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:03,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:03,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1851559949, now seen corresponding path program 1 times [2020-10-28 10:12:03,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:03,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734170167] [2020-10-28 10:12:03,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:03,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:04,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:06,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:06,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-28 10:12:06,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:12:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2875 [2020-10-28 10:12:06,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:06,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 10:12:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 10:12:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:06,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:06,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:06,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:06,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:06,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:12:06,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:06,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:06,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:06,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:06,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:06,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:06,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:06,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 10:12:06,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 10:12:06,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:06,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:06,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 10:12:06,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:12:06,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734170167] [2020-10-28 10:12:06,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:06,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:12:06,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539613605] [2020-10-28 10:12:06,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:12:06,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:06,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:12:06,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:12:06,396 INFO L87 Difference]: Start difference. First operand 2117 states and 2570 transitions. Second operand 5 states. [2020-10-28 10:12:08,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:08,094 INFO L93 Difference]: Finished difference Result 4970 states and 6061 transitions. [2020-10-28 10:12:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:12:08,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-28 10:12:08,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:08,117 INFO L225 Difference]: With dead ends: 4970 [2020-10-28 10:12:08,117 INFO L226 Difference]: Without dead ends: 2859 [2020-10-28 10:12:08,125 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 [2020-10-28 10:12:08,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2020-10-28 10:12:08,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2557. [2020-10-28 10:12:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2557 states. [2020-10-28 10:12:08,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 3113 transitions. [2020-10-28 10:12:08,222 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 3113 transitions. Word has length 127 [2020-10-28 10:12:08,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:08,223 INFO L481 AbstractCegarLoop]: Abstraction has 2557 states and 3113 transitions. [2020-10-28 10:12:08,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:12:08,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 3113 transitions. [2020-10-28 10:12:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-28 10:12:08,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:08,232 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:12:08,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:12:08,233 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:08,233 INFO L82 PathProgramCache]: Analyzing trace with hash -785394248, now seen corresponding path program 1 times [2020-10-28 10:12:08,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:08,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592136122] [2020-10-28 10:12:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:08,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:08,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:08,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-28 10:12:08,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:08,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-28 10:12:08,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:08,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:12:08,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 10:12:08,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:12:08,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:08,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:08,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:08,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:12:08,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:08,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:08,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:08,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:08,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:08,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:08,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:12:08,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:08,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:12:08,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:08,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:12:08,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:12:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:08,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:08,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:08,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 10:12:08,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 10:12:08,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:08,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:12:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 10:12:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 71 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:12:08,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592136122] [2020-10-28 10:12:08,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:08,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:12:08,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977244708] [2020-10-28 10:12:08,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:12:08,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:08,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:12:08,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:12:08,947 INFO L87 Difference]: Start difference. First operand 2557 states and 3113 transitions. Second operand 7 states. [2020-10-28 10:12:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:11,213 INFO L93 Difference]: Finished difference Result 5616 states and 6958 transitions. [2020-10-28 10:12:11,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:12:11,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-28 10:12:11,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:11,230 INFO L225 Difference]: With dead ends: 5616 [2020-10-28 10:12:11,230 INFO L226 Difference]: Without dead ends: 2603 [2020-10-28 10:12:11,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:12:11,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2020-10-28 10:12:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2567. [2020-10-28 10:12:11,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2020-10-28 10:12:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2974 transitions. [2020-10-28 10:12:11,329 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2974 transitions. Word has length 161 [2020-10-28 10:12:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:11,330 INFO L481 AbstractCegarLoop]: Abstraction has 2567 states and 2974 transitions. [2020-10-28 10:12:11,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:12:11,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2974 transitions. [2020-10-28 10:12:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-28 10:12:11,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:11,339 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, 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] [2020-10-28 10:12:11,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:12:11,339 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:11,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1695433172, now seen corresponding path program 1 times [2020-10-28 10:12:11,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:11,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413122745] [2020-10-28 10:12:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:11,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:11,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:12,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:13,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:16,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:16,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-28 10:12:16,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:12:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 10:12:16,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:16,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 10:12:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 10:12:16,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:12:16,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:16,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:16,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:16,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:16,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:16,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:12:16,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:16,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:16,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:16,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:16,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:16,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:16,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:16,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 10:12:16,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:16,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 10:12:16,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:16,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:16,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-28 10:12:16,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 67 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:12:16,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413122745] [2020-10-28 10:12:16,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:16,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:12:16,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649274453] [2020-10-28 10:12:16,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:12:16,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:16,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:12:16,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:12:16,681 INFO L87 Difference]: Start difference. First operand 2567 states and 2974 transitions. Second operand 5 states. [2020-10-28 10:12:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:18,199 INFO L93 Difference]: Finished difference Result 6173 states and 7203 transitions. [2020-10-28 10:12:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:12:18,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-10-28 10:12:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:18,219 INFO L225 Difference]: With dead ends: 6173 [2020-10-28 10:12:18,219 INFO L226 Difference]: Without dead ends: 3612 [2020-10-28 10:12:18,227 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 [2020-10-28 10:12:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2020-10-28 10:12:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3169. [2020-10-28 10:12:18,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3169 states. [2020-10-28 10:12:18,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 3670 transitions. [2020-10-28 10:12:18,327 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 3670 transitions. Word has length 161 [2020-10-28 10:12:18,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:18,328 INFO L481 AbstractCegarLoop]: Abstraction has 3169 states and 3670 transitions. [2020-10-28 10:12:18,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:12:18,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 3670 transitions. [2020-10-28 10:12:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-28 10:12:18,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:18,368 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:12:18,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:12:18,369 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:18,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:18,369 INFO L82 PathProgramCache]: Analyzing trace with hash -849359120, now seen corresponding path program 1 times [2020-10-28 10:12:18,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:18,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586376833] [2020-10-28 10:12:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:18,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:18,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:18,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 10:12:18,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-28 10:12:18,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:18,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 10:12:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 10:12:18,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:18,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:18,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:18,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:18,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:18,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:12:18,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:18,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:18,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:18,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:18,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:18,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 10:12:18,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:18,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:12:18,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:18,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 10:12:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:12:18,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 10:12:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:18,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:18,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:18,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 10:12:18,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:18,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 10:12:18,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:18,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:12:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 10:12:18,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:12:19,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586376833] [2020-10-28 10:12:19,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:19,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:12:19,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097406164] [2020-10-28 10:12:19,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:12:19,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:19,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:12:19,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:12:19,070 INFO L87 Difference]: Start difference. First operand 3169 states and 3670 transitions. Second operand 7 states. [2020-10-28 10:12:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:22,150 INFO L93 Difference]: Finished difference Result 7349 states and 8811 transitions. [2020-10-28 10:12:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:12:22,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-10-28 10:12:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:22,173 INFO L225 Difference]: With dead ends: 7349 [2020-10-28 10:12:22,174 INFO L226 Difference]: Without dead ends: 4186 [2020-10-28 10:12:22,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:12:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2020-10-28 10:12:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 4074. [2020-10-28 10:12:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4074 states. [2020-10-28 10:12:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4074 states to 4074 states and 4635 transitions. [2020-10-28 10:12:22,328 INFO L78 Accepts]: Start accepts. Automaton has 4074 states and 4635 transitions. Word has length 165 [2020-10-28 10:12:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:22,329 INFO L481 AbstractCegarLoop]: Abstraction has 4074 states and 4635 transitions. [2020-10-28 10:12:22,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:12:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4074 states and 4635 transitions. [2020-10-28 10:12:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-28 10:12:22,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:22,341 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:12:22,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 10:12:22,342 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:22,342 INFO L82 PathProgramCache]: Analyzing trace with hash -164786831, now seen corresponding path program 1 times [2020-10-28 10:12:22,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:22,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32526285] [2020-10-28 10:12:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:22,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:23,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:23,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-28 10:12:23,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:12:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1220 [2020-10-28 10:12:23,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:23,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:12:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:12:23,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 10:12:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:23,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:23,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:23,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:23,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:23,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:12:23,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:23,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:12:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:23,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:23,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:23,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 10:12:23,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 10:12:23,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:23,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:12:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 10:12:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:12:23,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 10:12:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:23,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:23,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:23,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 10:12:23,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:23,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 10:12:23,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:23,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 10:12:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:12:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 97 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 10:12:23,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32526285] [2020-10-28 10:12:23,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:23,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:12:23,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807058986] [2020-10-28 10:12:23,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:12:23,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:23,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:12:23,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:12:23,996 INFO L87 Difference]: Start difference. First operand 4074 states and 4635 transitions. Second operand 7 states. [2020-10-28 10:12:25,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:25,071 INFO L93 Difference]: Finished difference Result 6636 states and 7547 transitions. [2020-10-28 10:12:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 10:12:25,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-28 10:12:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:25,086 INFO L225 Difference]: With dead ends: 6636 [2020-10-28 10:12:25,086 INFO L226 Difference]: Without dead ends: 1931 [2020-10-28 10:12:25,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 10:12:25,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2020-10-28 10:12:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1785. [2020-10-28 10:12:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1785 states. [2020-10-28 10:12:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 1876 transitions. [2020-10-28 10:12:25,150 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 1876 transitions. Word has length 193 [2020-10-28 10:12:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:25,151 INFO L481 AbstractCegarLoop]: Abstraction has 1785 states and 1876 transitions. [2020-10-28 10:12:25,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:12:25,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 1876 transitions. [2020-10-28 10:12:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-28 10:12:25,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:25,156 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, 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] [2020-10-28 10:12:25,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 10:12:25,156 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1461677181, now seen corresponding path program 1 times [2020-10-28 10:12:25,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:25,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423859627] [2020-10-28 10:12:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:25,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:25,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-28 10:12:25,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-28 10:12:25,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:25,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 10:12:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 10:12:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:25,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:12:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:25,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:25,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:25,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:12:25,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:25,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:12:25,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:25,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:12:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:12:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:12:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:25,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:25,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 10:12:25,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:25,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 10:12:25,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:25,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:12:25,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:12:25,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 10:12:25,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:12:25,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 10:12:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:12:25,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:12:25,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:12:25,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 10:12:25,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:12:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 10:12:25,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:12:25,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:12:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:12:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:12:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 10:12:25,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:12:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:12:25,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423859627] [2020-10-28 10:12:25,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:12:25,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:12:25,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752310191] [2020-10-28 10:12:25,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:12:25,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:12:25,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:12:25,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:12:25,889 INFO L87 Difference]: Start difference. First operand 1785 states and 1876 transitions. Second operand 7 states. [2020-10-28 10:12:27,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:12:27,040 INFO L93 Difference]: Finished difference Result 2824 states and 2972 transitions. [2020-10-28 10:12:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:12:27,040 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-28 10:12:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:12:27,048 INFO L225 Difference]: With dead ends: 2824 [2020-10-28 10:12:27,049 INFO L226 Difference]: Without dead ends: 1481 [2020-10-28 10:12:27,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:12:27,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-10-28 10:12:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1481. [2020-10-28 10:12:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2020-10-28 10:12:27,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1543 transitions. [2020-10-28 10:12:27,088 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1543 transitions. Word has length 203 [2020-10-28 10:12:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:12:27,088 INFO L481 AbstractCegarLoop]: Abstraction has 1481 states and 1543 transitions. [2020-10-28 10:12:27,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:12:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1543 transitions. [2020-10-28 10:12:27,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-28 10:12:27,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:12:27,094 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:12:27,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 10:12:27,095 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:12:27,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:12:27,095 INFO L82 PathProgramCache]: Analyzing trace with hash 175479354, now seen corresponding path program 1 times [2020-10-28 10:12:27,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:12:27,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70479842] [2020-10-28 10:12:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:12:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:12:27,146 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:12:27,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:12:27,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 10:12:27,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:12:27 BoogieIcfgContainer [2020-10-28 10:12:27,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:12:27,198 INFO L168 Benchmark]: Toolchain (without parser) took 46723.74 ms. Allocated memory was 151.0 MB in the beginning and 777.0 MB in the end (delta: 626.0 MB). Free memory was 124.2 MB in the beginning and 382.9 MB in the end (delta: -258.6 MB). Peak memory consumption was 368.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:12:27,199 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:12:27,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.18 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 98.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:12:27,200 INFO L168 Benchmark]: Boogie Preprocessor took 165.49 ms. Allocated memory is still 151.0 MB. Free memory was 98.0 MB in the beginning and 93.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:12:27,201 INFO L168 Benchmark]: RCFGBuilder took 1440.88 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 93.0 MB in the beginning and 154.4 MB in the end (delta: -61.4 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. [2020-10-28 10:12:27,202 INFO L168 Benchmark]: TraceAbstraction took 44387.31 ms. Allocated memory was 188.7 MB in the beginning and 777.0 MB in the end (delta: 588.3 MB). Free memory was 153.9 MB in the beginning and 382.9 MB in the end (delta: -229.0 MB). Peak memory consumption was 359.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:12:27,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 709.18 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 98.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 165.49 ms. Allocated memory is still 151.0 MB. Free memory was 98.0 MB in the beginning and 93.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1440.88 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 93.0 MB in the beginning and 154.4 MB in the end (delta: -61.4 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 44387.31 ms. Allocated memory was 188.7 MB in the beginning and 777.0 MB in the end (delta: 588.3 MB). Free memory was 153.9 MB in the beginning and 382.9 MB in the end (delta: -229.0 MB). Peak memory consumption was 359.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND TRUE ((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1))) [L237] a28 = 9 [L238] return 23; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND TRUE (((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1)) [L397] a19 = 0 [L398] a28 = 7 [L399] return 25; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND TRUE ((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8)))) [L157] a25 = 1 [L158] a19 = 1 [L159] a28 = 7 [L160] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L419] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L422] COND TRUE ((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8)) [L423] CALL reach_error() [L4] __assert_fail("0", "Problem02_label59.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.2s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 471 SDtfs, 4862 SDslu, 562 SDs, 0 SdLazy, 9814 SolverSat, 1213 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4074occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1851 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 1908 NumberOfCodeBlocks, 1908 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1646 ConstructedInterpolants, 0 QuantifiedInterpolants, 635609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 598/636 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 incorrect! Received shutdown request...