/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:04:55,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:04:55,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:04:55,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:04:55,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:04:55,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:04:55,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:04:55,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:04:55,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:04:55,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:04:55,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:04:55,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:04:55,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:04:55,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:04:55,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:04:55,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:04:55,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:04:55,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:04:55,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:04:55,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:04:55,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:04:55,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:04:55,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:04:55,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:04:55,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 03:04:55,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:04:55,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:04:55,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:04:55,804 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 [2020-08-22 03:04:55,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:04:55,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:04:55,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:04:55,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:04:55,829 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:04:55,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:04:55,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:04:55,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:04:55,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:04:55,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:04:55,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:04:55,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:04:55,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:04:55,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:04:55,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:04:55,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:04:55,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:04:55,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:04:55,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:04:55,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:04:55,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:04:55,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:04:55,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:04:55,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:04:55,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:04:55,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:04:55,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:04:55,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:04:55,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:04:55,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-08-22 03:04:56,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:04:56,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:04:56,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:04:56,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:04:56,167 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:04:56,168 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-08-22 03:04:56,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f7c09b83/06aaf64abcdd4670b76688e242a6766e/FLAG2b8158dd8 [2020-08-22 03:04:56,799 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:04:56,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-08-22 03:04:56,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f7c09b83/06aaf64abcdd4670b76688e242a6766e/FLAG2b8158dd8 [2020-08-22 03:04:57,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f7c09b83/06aaf64abcdd4670b76688e242a6766e [2020-08-22 03:04:57,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:04:57,100 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:04:57,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:04:57,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:04:57,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:04:57,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256ae262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57, skipping insertion in model container [2020-08-22 03:04:57,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:04:57,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:04:57,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:04:57,718 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:04:57,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:04:57,867 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:04:57,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57 WrapperNode [2020-08-22 03:04:57,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:04:57,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:04:57,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:04:57,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:04:57,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (1/1) ... [2020-08-22 03:04:57,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:04:57,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:04:57,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:04:57,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:04:57,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (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 [2020-08-22 03:04:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:04:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:04:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 03:04:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:04:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 03:04:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:04:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:04:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 03:04:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:04:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:04:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:04:59,214 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:04:59,214 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 03:04:59,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:04:59 BoogieIcfgContainer [2020-08-22 03:04:59,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:04:59,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:04:59,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:04:59,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:04:59,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:04:57" (1/3) ... [2020-08-22 03:04:59,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b9a234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:04:59, skipping insertion in model container [2020-08-22 03:04:59,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:04:57" (2/3) ... [2020-08-22 03:04:59,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b9a234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:04:59, skipping insertion in model container [2020-08-22 03:04:59,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:04:59" (3/3) ... [2020-08-22 03:04:59,229 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-08-22 03:04:59,239 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:04:59,247 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:04:59,262 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:04:59,290 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:04:59,290 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:04:59,290 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:04:59,290 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:04:59,291 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:04:59,291 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:04:59,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:04:59,291 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:04:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 03:04:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-22 03:04:59,330 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:04:59,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:04:59,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:04:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:04:59,337 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2020-08-22 03:04:59,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:04:59,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353206649] [2020-08-22 03:04:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:04:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:04:59,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:04:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:00,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:05:00,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353206649] [2020-08-22 03:05:00,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:05:00,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 03:05:00,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094110642] [2020-08-22 03:05:00,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:05:00,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:00,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:05:00,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:05:00,047 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 03:05:01,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:01,561 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-08-22 03:05:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 03:05:01,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-08-22 03:05:01,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:01,589 INFO L225 Difference]: With dead ends: 557 [2020-08-22 03:05:01,589 INFO L226 Difference]: Without dead ends: 286 [2020-08-22 03:05:01,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:05:01,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-22 03:05:01,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-08-22 03:05:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-22 03:05:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-08-22 03:05:01,705 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 120 [2020-08-22 03:05:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:01,706 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-08-22 03:05:01,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:05:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-08-22 03:05:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-08-22 03:05:01,711 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:01,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:01,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:05:01,712 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:01,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:01,713 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2020-08-22 03:05:01,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:01,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331625890] [2020-08-22 03:05:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:01,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:05:01,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331625890] [2020-08-22 03:05:01,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:05:01,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 03:05:01,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475811812] [2020-08-22 03:05:01,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 03:05:01,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:01,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 03:05:01,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:05:01,915 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-08-22 03:05:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:03,385 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-08-22 03:05:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 03:05:03,386 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-08-22 03:05:03,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:03,391 INFO L225 Difference]: With dead ends: 713 [2020-08-22 03:05:03,391 INFO L226 Difference]: Without dead ends: 439 [2020-08-22 03:05:03,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-22 03:05:03,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-22 03:05:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-08-22 03:05:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-22 03:05:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-08-22 03:05:03,434 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 130 [2020-08-22 03:05:03,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:03,435 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-08-22 03:05:03,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 03:05:03,436 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-08-22 03:05:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-08-22 03:05:03,442 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:03,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:03,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:05:03,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:03,444 INFO L82 PathProgramCache]: Analyzing trace with hash -46995225, now seen corresponding path program 1 times [2020-08-22 03:05:03,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:03,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185251483] [2020-08-22 03:05:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:03,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:03,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:05:03,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185251483] [2020-08-22 03:05:03,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:05:03,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 03:05:03,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254038726] [2020-08-22 03:05:03,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 03:05:03,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:03,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 03:05:03,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:05:03,842 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 6 states. [2020-08-22 03:05:05,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:05,065 INFO L93 Difference]: Finished difference Result 945 states and 1358 transitions. [2020-08-22 03:05:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 03:05:05,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2020-08-22 03:05:05,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:05,071 INFO L225 Difference]: With dead ends: 945 [2020-08-22 03:05:05,072 INFO L226 Difference]: Without dead ends: 427 [2020-08-22 03:05:05,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:05:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-22 03:05:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-22 03:05:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-22 03:05:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 552 transitions. [2020-08-22 03:05:05,098 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 552 transitions. Word has length 131 [2020-08-22 03:05:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:05,098 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 552 transitions. [2020-08-22 03:05:05,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 03:05:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 552 transitions. [2020-08-22 03:05:05,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-22 03:05:05,102 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:05,102 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:05,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:05:05,103 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:05,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:05,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1746951265, now seen corresponding path program 1 times [2020-08-22 03:05:05,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:05,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960853875] [2020-08-22 03:05:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:05,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:05:05,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960853875] [2020-08-22 03:05:05,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:05:05,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 03:05:05,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801256003] [2020-08-22 03:05:05,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:05:05,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:05,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:05:05,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:05:05,661 INFO L87 Difference]: Start difference. First operand 419 states and 552 transitions. Second operand 7 states. [2020-08-22 03:05:06,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:06,710 INFO L93 Difference]: Finished difference Result 924 states and 1249 transitions. [2020-08-22 03:05:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 03:05:06,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-08-22 03:05:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:06,713 INFO L225 Difference]: With dead ends: 924 [2020-08-22 03:05:06,714 INFO L226 Difference]: Without dead ends: 427 [2020-08-22 03:05:06,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:05:06,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-22 03:05:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-22 03:05:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-22 03:05:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 549 transitions. [2020-08-22 03:05:06,734 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 549 transitions. Word has length 132 [2020-08-22 03:05:06,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:06,735 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 549 transitions. [2020-08-22 03:05:06,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:05:06,735 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 549 transitions. [2020-08-22 03:05:06,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-22 03:05:06,738 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:06,738 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:06,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:05:06,739 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:06,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2020-08-22 03:05:06,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:06,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492462264] [2020-08-22 03:05:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:06,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:06,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:05:06,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492462264] [2020-08-22 03:05:06,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:05:06,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 03:05:06,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527104121] [2020-08-22 03:05:06,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 03:05:06,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:06,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 03:05:06,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:05:06,979 INFO L87 Difference]: Start difference. First operand 419 states and 549 transitions. Second operand 6 states. [2020-08-22 03:05:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:08,495 INFO L93 Difference]: Finished difference Result 1666 states and 2284 transitions. [2020-08-22 03:05:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 03:05:08,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2020-08-22 03:05:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:08,529 INFO L225 Difference]: With dead ends: 1666 [2020-08-22 03:05:08,529 INFO L226 Difference]: Without dead ends: 1253 [2020-08-22 03:05:08,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:05:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-22 03:05:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1245. [2020-08-22 03:05:08,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-08-22 03:05:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1607 transitions. [2020-08-22 03:05:08,622 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1607 transitions. Word has length 137 [2020-08-22 03:05:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:08,624 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1607 transitions. [2020-08-22 03:05:08,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 03:05:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1607 transitions. [2020-08-22 03:05:08,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-22 03:05:08,631 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:08,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:08,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 03:05:08,633 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:08,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:08,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1710204053, now seen corresponding path program 1 times [2020-08-22 03:05:08,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:08,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667255210] [2020-08-22 03:05:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:08,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:05:08,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667255210] [2020-08-22 03:05:08,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:05:08,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 03:05:08,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089621193] [2020-08-22 03:05:08,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 03:05:08,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:08,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 03:05:08,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:05:08,805 INFO L87 Difference]: Start difference. First operand 1245 states and 1607 transitions. Second operand 8 states. [2020-08-22 03:05:10,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:10,553 INFO L93 Difference]: Finished difference Result 3638 states and 5048 transitions. [2020-08-22 03:05:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 03:05:10,554 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2020-08-22 03:05:10,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:10,570 INFO L225 Difference]: With dead ends: 3638 [2020-08-22 03:05:10,571 INFO L226 Difference]: Without dead ends: 2399 [2020-08-22 03:05:10,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-08-22 03:05:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2020-08-22 03:05:10,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2224. [2020-08-22 03:05:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2224 states. [2020-08-22 03:05:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2840 transitions. [2020-08-22 03:05:10,681 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2840 transitions. Word has length 138 [2020-08-22 03:05:10,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:10,681 INFO L479 AbstractCegarLoop]: Abstraction has 2224 states and 2840 transitions. [2020-08-22 03:05:10,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 03:05:10,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2840 transitions. [2020-08-22 03:05:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 03:05:10,689 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:10,689 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:10,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 03:05:10,690 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:10,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1422723674, now seen corresponding path program 1 times [2020-08-22 03:05:10,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:10,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618343659] [2020-08-22 03:05:10,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:10,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 03:05:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 03:05:10,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618343659] [2020-08-22 03:05:10,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:05:10,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 03:05:10,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348198559] [2020-08-22 03:05:10,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:05:10,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:10,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:05:10,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:05:10,885 INFO L87 Difference]: Start difference. First operand 2224 states and 2840 transitions. Second operand 7 states. [2020-08-22 03:05:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:12,141 INFO L93 Difference]: Finished difference Result 4752 states and 6199 transitions. [2020-08-22 03:05:12,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 03:05:12,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-08-22 03:05:12,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:12,156 INFO L225 Difference]: With dead ends: 4752 [2020-08-22 03:05:12,156 INFO L226 Difference]: Without dead ends: 2534 [2020-08-22 03:05:12,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 03:05:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2020-08-22 03:05:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2115. [2020-08-22 03:05:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2115 states. [2020-08-22 03:05:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2635 transitions. [2020-08-22 03:05:12,247 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2635 transitions. Word has length 153 [2020-08-22 03:05:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:12,247 INFO L479 AbstractCegarLoop]: Abstraction has 2115 states and 2635 transitions. [2020-08-22 03:05:12,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:05:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2635 transitions. [2020-08-22 03:05:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-08-22 03:05:12,256 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:05:12,256 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:05:12,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 03:05:12,257 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:05:12,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:05:12,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1579699882, now seen corresponding path program 1 times [2020-08-22 03:05:12,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:05:12,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538466501] [2020-08-22 03:05:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:05:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:12,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:05:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:12,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:05:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:12,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 03:05:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:05:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 03:05:12,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538466501] [2020-08-22 03:05:12,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:05:12,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 03:05:12,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811492757] [2020-08-22 03:05:12,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:05:12,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:05:12,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:05:12,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:05:12,511 INFO L87 Difference]: Start difference. First operand 2115 states and 2635 transitions. Second operand 5 states. [2020-08-22 03:05:13,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:05:13,484 INFO L93 Difference]: Finished difference Result 4361 states and 5462 transitions. [2020-08-22 03:05:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 03:05:13,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-08-22 03:05:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:05:13,485 INFO L225 Difference]: With dead ends: 4361 [2020-08-22 03:05:13,486 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 03:05:13,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:05:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 03:05:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 03:05:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 03:05:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 03:05:13,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2020-08-22 03:05:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:05:13,496 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 03:05:13,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:05:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 03:05:13,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 03:05:13,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 03:05:13,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 03:05:13,840 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 115 [2020-08-22 03:05:13,977 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 115 [2020-08-22 03:05:14,818 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2020-08-22 03:05:15,130 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 52 [2020-08-22 03:05:15,446 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 52 [2020-08-22 03:05:15,450 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:05:15,451 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-22 03:05:15,451 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:05:15,451 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 03:05:15,451 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 03:05:15,451 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,452 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,452 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,452 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,452 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,452 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,452 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 03:05:15,453 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 03:05:15,453 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 03:05:15,453 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 03:05:15,453 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 03:05:15,454 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 03:05:15,454 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 03:05:15,454 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 03:05:15,454 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 03:05:15,454 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,455 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 03:05:15,456 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 03:05:15,457 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 03:05:15,457 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 03:05:15,457 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 03:05:15,457 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2020-08-22 03:05:15,457 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 03:05:15,457 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 03:05:15,458 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 03:05:15,458 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 03:05:15,458 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,458 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,458 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,458 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 03:05:15,459 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 03:05:15,460 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 03:05:15,460 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 03:05:15,460 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,460 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,460 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,460 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 03:05:15,461 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 03:05:15,462 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 03:05:15,463 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 03:05:15,464 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 03:05:15,465 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 03:05:15,466 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 03:05:15,467 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 03:05:15,468 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,469 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 03:05:15,470 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 03:05:15,471 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 03:05:15,471 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 03:05:15,471 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 03:05:15,471 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 03:05:15,471 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 03:05:15,472 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse8 (= |old(~a17~0)| 1)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse16 (= ~a16~0 |old(~a16~0)|)) (.cse17 (= ~a8~0 |old(~a8~0)|)) (.cse9 (= |old(~a21~0)| 1)) (.cse13 (= ~a7~0 |old(~a7~0)|)) (.cse18 (= ~a17~0 |old(~a17~0)|)) (.cse15 (= ~a20~0 |old(~a20~0)|)) (.cse12 (= |old(~a8~0)| 13))) (let ((.cse0 (not .cse12)) (.cse2 (and .cse13 .cse18 (= ~a21~0 1) .cse15 (= ~a8~0 13) (= ~a16~0 4))) (.cse3 (not .cse9)) (.cse5 (not (= 4 |old(~a16~0)|))) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse7 (and .cse18 .cse13 .cse14 .cse15 .cse16 .cse17)) (.cse10 (not .cse8)) (.cse11 (and .cse13 .cse14 .cse15 .cse16 .cse17 (= ~a17~0 1))) (.cse1 (not (= |old(~a20~0)| 1))) (.cse4 (not (= ~a12~0 8)))) (and (or .cse0 (not (= |old(~a7~0)| 1)) .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse4) (or .cse7 (not (<= |old(~a17~0)| 0)) .cse9 .cse4) (or .cse0 (not (<= |old(~a7~0)| 0)) .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse10 (not (<= 5 |old(~a16~0)|)) .cse11 .cse1 .cse4) (or .cse6 .cse7 .cse9 .cse4) (or (not (<= 15 |old(~a8~0)|)) .cse7 .cse4) (or .cse10 .cse11 .cse12 .cse1 .cse4)))) [2020-08-22 03:05:15,472 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 03:05:15,472 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,472 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,472 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,472 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,472 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 03:05:15,473 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 03:05:15,474 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,475 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 03:05:15,476 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,477 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 03:05:15,478 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 03:05:15,479 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:05:15,480 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a12~0 8) (= ~a20~0 1) (<= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-22 03:05:15,480 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 03:05:15,480 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:05:15,480 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) (not (= ~a12~0 8))) [2020-08-22 03:05:15,480 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 03:05:15,481 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (= ~a16~0 4)) (.cse4 (<= ~a16~0 5)) (.cse2 (not (= ~a21~0 1))) (.cse0 (= ~a20~0 1)) (.cse1 (= ~a17~0 1))) (or (not (<= 5 |old(~a16~0)|)) (not (= |old(~a20~0)| 1)) (and .cse0 (<= 5 ~a16~0) .cse1) (and (<= ~a17~0 0) .cse2) (and (= ~a7~0 1) .cse0 .cse3) (and (<= ~a7~0 0) .cse0 .cse3) (<= 15 ~a8~0) (not (= |old(~a17~0)| 1)) (and .cse4 (not .cse1)) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse2) (not (<= 15 |old(~a8~0)|)) (and (not (= ~a8~0 13)) .cse0 .cse1) (not (= ~a12~0 8)))) [2020-08-22 03:05:15,481 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 03:05:15,481 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 03:05:15,481 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a16~0 4)) (.cse4 (<= ~a16~0 5)) (.cse2 (not (= ~a21~0 1))) (.cse0 (= ~a20~0 1)) (.cse1 (= ~a17~0 1))) (or (not (<= 5 |old(~a16~0)|)) (not (= |old(~a20~0)| 1)) (and .cse0 (<= 5 ~a16~0) .cse1) (and (<= ~a17~0 0) .cse2) (and (= ~a7~0 1) .cse0 .cse3) (and (<= ~a7~0 0) .cse0 .cse3) (<= 15 ~a8~0) (not (= |old(~a17~0)| 1)) (and .cse4 (not .cse1)) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse2) (not (<= 15 |old(~a8~0)|)) (and (not (= ~a8~0 13)) .cse0 .cse1) (not (= ~a12~0 8)))) [2020-08-22 03:05:15,481 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 03:05:15,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:05:15 BoogieIcfgContainer [2020-08-22 03:05:15,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:05:15,508 INFO L168 Benchmark]: Toolchain (without parser) took 18407.39 ms. Allocated memory was 139.5 MB in the beginning and 503.8 MB in the end (delta: 364.4 MB). Free memory was 100.5 MB in the beginning and 446.2 MB in the end (delta: -345.7 MB). Peak memory consumption was 381.6 MB. Max. memory is 7.1 GB. [2020-08-22 03:05:15,509 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 03:05:15,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.77 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 169.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:05:15,510 INFO L168 Benchmark]: Boogie Preprocessor took 103.05 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:05:15,511 INFO L168 Benchmark]: RCFGBuilder took 1248.63 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 177.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:05:15,512 INFO L168 Benchmark]: TraceAbstraction took 16283.74 ms. Allocated memory was 235.9 MB in the beginning and 503.8 MB in the end (delta: 267.9 MB). Free memory was 177.9 MB in the beginning and 446.2 MB in the end (delta: -268.3 MB). Peak memory consumption was 362.5 MB. Max. memory is 7.1 GB. [2020-08-22 03:05:15,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.77 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 169.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.05 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1248.63 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 177.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16283.74 ms. Allocated memory was 235.9 MB in the beginning and 503.8 MB in the end (delta: 267.9 MB). Free memory was 177.9 MB in the beginning and 446.2 MB in the end (delta: -268.3 MB). Peak memory consumption was 362.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((!(5 <= \old(a16)) || !(\old(a20) == 1)) || ((a20 == 1 && 5 <= a16) && a17 == 1)) || (a17 <= 0 && !(a21 == 1))) || ((a7 == 1 && a20 == 1) && a16 == 4)) || ((a7 <= 0 && a20 == 1) && a16 == 4)) || 15 <= a8) || !(\old(a17) == 1)) || (a16 <= 5 && !(a17 == 1))) || !(\old(a16) <= 5)) || (a16 <= 5 && !(a21 == 1))) || !(15 <= \old(a8))) || ((!(a8 == 13) && a20 == 1) && a17 == 1)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.2s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 213 SDtfs, 3174 SDslu, 251 SDs, 0 SdLazy, 5652 SolverSat, 947 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2224occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 642 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 77 PreInvPairs, 115 NumberOfFragments, 589 HoareAnnotationTreeSize, 77 FomulaSimplifications, 79155 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6434 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1125 NumberOfCodeBlocks, 1125 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1117 ConstructedInterpolants, 0 QuantifiedInterpolants, 936483 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 161/168 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...