/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 07:09:56,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 07:09:56,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 07:09:56,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 07:09:56,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 07:09:56,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 07:09:56,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 07:09:56,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 07:09:56,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 07:09:56,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 07:09:56,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 07:09:56,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 07:09:56,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 07:09:56,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 07:09:56,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 07:09:56,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 07:09:56,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 07:09:56,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 07:09:56,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 07:09:56,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 07:09:56,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 07:09:56,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 07:09:56,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 07:09:56,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 07:09:56,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 07:09:56,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 07:09:56,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 07:09:56,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 07:09:56,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 07:09:56,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 07:09:56,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 07:09:56,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 07:09:56,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 07:09:56,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 07:09:56,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 07:09:56,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 07:09:56,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 07:09:56,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 07:09:56,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 07:09:56,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 07:09:56,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 07:09:56,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 07:09:56,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 07:09:56,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 07:09:56,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 07:09:56,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 07:09:56,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 07:09:56,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 07:09:56,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 07:09:56,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 07:09:56,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 07:09:56,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 07:09:56,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 07:09:56,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 07:09:56,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 07:09:56,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 07:09:56,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 07:09:56,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 07:09:56,838 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 07:09:56,839 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 07:09:57,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 07:09:57,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 07:09:57,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 07:09:57,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 07:09:57,161 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 07:09:57,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i [2021-05-01 07:09:57,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9a35dee/016383a1d52a4553acf5d707556875e8/FLAG35f685562 [2021-05-01 07:09:57,649 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 07:09:57,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i [2021-05-01 07:09:57,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9a35dee/016383a1d52a4553acf5d707556875e8/FLAG35f685562 [2021-05-01 07:09:57,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b9a35dee/016383a1d52a4553acf5d707556875e8 [2021-05-01 07:09:57,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 07:09:57,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 07:09:57,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 07:09:57,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 07:09:57,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 07:09:57,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9bed1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57, skipping insertion in model container [2021-05-01 07:09:57,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 07:09:57,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 07:09:57,811 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i[893,906] [2021-05-01 07:09:57,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:09:57,834 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 07:09:57,848 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i[893,906] [2021-05-01 07:09:57,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:09:57,918 INFO L208 MainTranslator]: Completed translation [2021-05-01 07:09:57,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57 WrapperNode [2021-05-01 07:09:57,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 07:09:57,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 07:09:57,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 07:09:57,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 07:09:57,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... [2021-05-01 07:09:57,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 07:09:57,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 07:09:57,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 07:09:57,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 07:09:57,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-05-01 07:09:58,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 07:09:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 07:09:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 07:09:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 07:09:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 07:09:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 07:09:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 07:09:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 07:09:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 07:09:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 07:09:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 07:09:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 07:09:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 07:09:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 07:09:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 07:09:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 07:09:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 07:09:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 07:09:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 07:09:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 07:09:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 07:09:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 07:09:58,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 07:09:58,356 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 07:09:58,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:09:58 BoogieIcfgContainer [2021-05-01 07:09:58,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 07:09:58,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 07:09:58,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 07:09:58,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 07:09:58,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:09:57" (1/3) ... [2021-05-01 07:09:58,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a42215d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:09:58, skipping insertion in model container [2021-05-01 07:09:58,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:09:57" (2/3) ... [2021-05-01 07:09:58,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a42215d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:09:58, skipping insertion in model container [2021-05-01 07:09:58,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:09:58" (3/3) ... [2021-05-01 07:09:58,368 INFO L111 eAbstractionObserver]: Analyzing ICFG sendmail-close-angle.i [2021-05-01 07:09:58,372 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 07:09:58,375 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 07:09:58,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 07:09:58,415 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 07:09:58,415 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 07:09:58,415 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 07:09:58,415 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 07:09:58,415 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 07:09:58,415 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 07:09:58,416 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 07:09:58,416 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 07:09:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.380952380952381) internal successors, (29), 23 states have internal predecessors, (29), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-01 07:09:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-01 07:09:58,441 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:09:58,442 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:09:58,442 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:09:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:09:58,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1361038294, now seen corresponding path program 1 times [2021-05-01 07:09:58,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:09:58,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285068079] [2021-05-01 07:09:58,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:09:58,513 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:09:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:58,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:58,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:58,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:09:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:58,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:09:58,703 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:09:58,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285068079] [2021-05-01 07:09:58,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1285068079] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:09:58,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:09:58,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 07:09:58,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217943243] [2021-05-01 07:09:58,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 07:09:58,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:09:58,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 07:09:58,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 07:09:58,718 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.380952380952381) internal successors, (29), 23 states have internal predecessors, (29), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:09:58,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:09:58,815 INFO L93 Difference]: Finished difference Result 62 states and 93 transitions. [2021-05-01 07:09:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 07:09:58,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-01 07:09:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:09:58,823 INFO L225 Difference]: With dead ends: 62 [2021-05-01 07:09:58,824 INFO L226 Difference]: Without dead ends: 30 [2021-05-01 07:09:58,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 07:09:58,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-01 07:09:58,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-01 07:09:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 07:09:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-05-01 07:09:58,887 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 15 [2021-05-01 07:09:58,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:09:58,887 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-05-01 07:09:58,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:09:58,888 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2021-05-01 07:09:58,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-01 07:09:58,889 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:09:58,889 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:09:58,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 07:09:58,890 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:09:58,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:09:58,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1347976123, now seen corresponding path program 1 times [2021-05-01 07:09:58,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:09:58,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193810087] [2021-05-01 07:09:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:09:58,893 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:09:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:58,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:58,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-05-01 07:09:58,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:09:58,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:09:58,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:09:58,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:58,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:09:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:09:59,011 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:09:59,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193810087] [2021-05-01 07:09:59,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1193810087] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:09:59,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:09:59,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 07:09:59,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126960392] [2021-05-01 07:09:59,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 07:09:59,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:09:59,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 07:09:59,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-01 07:09:59,014 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:09:59,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:09:59,333 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-05-01 07:09:59,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 07:09:59,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-05-01 07:09:59,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:09:59,335 INFO L225 Difference]: With dead ends: 36 [2021-05-01 07:09:59,335 INFO L226 Difference]: Without dead ends: 34 [2021-05-01 07:09:59,336 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 171.8ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-05-01 07:09:59,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-01 07:09:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-05-01 07:09:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 07:09:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-05-01 07:09:59,348 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 16 [2021-05-01 07:09:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:09:59,348 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-05-01 07:09:59,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:09:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2021-05-01 07:09:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-01 07:09:59,349 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:09:59,349 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:09:59,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 07:09:59,350 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:09:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:09:59,350 INFO L82 PathProgramCache]: Analyzing trace with hash -863391162, now seen corresponding path program 1 times [2021-05-01 07:09:59,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:09:59,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275671052] [2021-05-01 07:09:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:09:59,353 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:09:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:09:59,394 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-05-01 07:09:59,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:09:59,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:09:59,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:09:59,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:09:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-01 07:09:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:09:59,457 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:09:59,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275671052] [2021-05-01 07:09:59,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1275671052] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:09:59,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:09:59,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 07:09:59,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130860996] [2021-05-01 07:09:59,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 07:09:59,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:09:59,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 07:09:59,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-01 07:09:59,459 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:09:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:09:59,814 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-05-01 07:09:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 07:09:59,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-05-01 07:09:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:09:59,820 INFO L225 Difference]: With dead ends: 49 [2021-05-01 07:09:59,820 INFO L226 Difference]: Without dead ends: 47 [2021-05-01 07:09:59,822 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 154.2ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-05-01 07:09:59,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-01 07:09:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-05-01 07:09:59,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 29 states have internal predecessors, (31), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 07:09:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2021-05-01 07:09:59,861 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 21 [2021-05-01 07:09:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:09:59,861 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-05-01 07:09:59,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:09:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2021-05-01 07:09:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-01 07:09:59,863 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:09:59,864 INFO L519 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:09:59,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 07:09:59,864 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:09:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:09:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1742477006, now seen corresponding path program 1 times [2021-05-01 07:09:59,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:09:59,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372624057] [2021-05-01 07:09:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:09:59,875 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:09:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:09:59,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:09:59,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:09:59,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:09:59,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:09:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-01 07:09:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-05-01 07:09:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:09:59,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:09:59,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:09:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:09:59,966 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:09:59,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372624057] [2021-05-01 07:09:59,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [372624057] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:09:59,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:09:59,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 07:09:59,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588632336] [2021-05-01 07:09:59,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 07:09:59,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:09:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 07:09:59,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-01 07:09:59,969 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-01 07:10:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:10:00,289 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2021-05-01 07:10:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 07:10:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2021-05-01 07:10:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:10:00,293 INFO L225 Difference]: With dead ends: 56 [2021-05-01 07:10:00,293 INFO L226 Difference]: Without dead ends: 54 [2021-05-01 07:10:00,294 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 148.2ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-05-01 07:10:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-01 07:10:00,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-05-01 07:10:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 32 states have internal predecessors, (34), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 07:10:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2021-05-01 07:10:00,309 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 29 [2021-05-01 07:10:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:10:00,309 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2021-05-01 07:10:00,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-01 07:10:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2021-05-01 07:10:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-01 07:10:00,310 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:10:00,310 INFO L519 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:10:00,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 07:10:00,311 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:10:00,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:10:00,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1571308956, now seen corresponding path program 1 times [2021-05-01 07:10:00,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:10:00,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405782690] [2021-05-01 07:10:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:10:00,313 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:10:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:00,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:10:00,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:10:00,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:00,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:00,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:10:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-01 07:10:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-01 07:10:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-01 07:10:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:10:00,455 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:10:00,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405782690] [2021-05-01 07:10:00,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1405782690] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:10:00,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:10:00,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 07:10:00,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432593158] [2021-05-01 07:10:00,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 07:10:00,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:10:00,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 07:10:00,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-01 07:10:00,456 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-01 07:10:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:10:00,824 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2021-05-01 07:10:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 07:10:00,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2021-05-01 07:10:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:10:00,826 INFO L225 Difference]: With dead ends: 75 [2021-05-01 07:10:00,826 INFO L226 Difference]: Without dead ends: 68 [2021-05-01 07:10:00,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 152.4ms TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-05-01 07:10:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-05-01 07:10:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-05-01 07:10:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.125) internal successors, (45), 43 states have internal predecessors, (45), 18 states have call successors, (18), 8 states have call predecessors, (18), 7 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-01 07:10:00,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2021-05-01 07:10:00,840 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 32 [2021-05-01 07:10:00,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:10:00,840 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2021-05-01 07:10:00,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-01 07:10:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2021-05-01 07:10:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-01 07:10:00,841 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:10:00,841 INFO L519 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:10:00,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 07:10:00,842 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:10:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:10:00,842 INFO L82 PathProgramCache]: Analyzing trace with hash 173943289, now seen corresponding path program 1 times [2021-05-01 07:10:00,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:10:00,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821671930] [2021-05-01 07:10:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:10:00,844 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:10:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:00,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:00,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:10:00,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:10:00,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:00,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:00,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:10:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-01 07:10:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-05-01 07:10:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-01 07:10:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:00,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:00,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:10:00,935 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:10:00,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821671930] [2021-05-01 07:10:00,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [821671930] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:10:00,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:10:00,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 07:10:00,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342294764] [2021-05-01 07:10:00,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 07:10:00,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:10:00,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 07:10:00,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-01 07:10:00,936 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-01 07:10:01,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:10:01,295 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2021-05-01 07:10:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 07:10:01,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2021-05-01 07:10:01,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:10:01,298 INFO L225 Difference]: With dead ends: 77 [2021-05-01 07:10:01,298 INFO L226 Difference]: Without dead ends: 75 [2021-05-01 07:10:01,298 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 169.4ms TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-05-01 07:10:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-05-01 07:10:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2021-05-01 07:10:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 46 states have internal predecessors, (48), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-01 07:10:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2021-05-01 07:10:01,327 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 34 [2021-05-01 07:10:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:10:01,327 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2021-05-01 07:10:01,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-01 07:10:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2021-05-01 07:10:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-01 07:10:01,329 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:10:01,329 INFO L519 BasicCegarLoop]: trace histogram [8, 7, 7, 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] [2021-05-01 07:10:01,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-01 07:10:01,329 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:10:01,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:10:01,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1755534668, now seen corresponding path program 1 times [2021-05-01 07:10:01,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:10:01,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436524095] [2021-05-01 07:10:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:10:01,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:10:01,387 INFO L181 rdanLoopAcceleration]: Guard: Formula: (let ((.cse0 (+ v_main_~in~0_12 1))) (and (<= 0 v_main_~buf~0_26) (not (= v_main_~buflim~0_5 v_main_~buf~0_26)) (< .cse0 v_main_~inlen~0_9) (<= 0 .cse0) (< v_main_~buf~0_26 v_main_~bufferlen~0_14) (<= |v_main_#t~nondet5_7| 2147483647) (not (= |v_main_#t~nondet5_7| 0)) (<= 0 (+ |v_main_#t~nondet5_7| 2147483648)))) InVars {main_#t~nondet5=|v_main_#t~nondet5_7|, main_~in~0=v_main_~in~0_12, main_~buf~0=v_main_~buf~0_26, main_~buflim~0=v_main_~buflim~0_5, main_~inlen~0=v_main_~inlen~0_9, main_~bufferlen~0=v_main_~bufferlen~0_14} OutVars{main_#t~nondet5=|v_main_#t~nondet5_7|, main_~in~0=v_main_~in~0_12, main_~buf~0=v_main_~buf~0_26, main_~buflim~0=v_main_~buflim~0_5, main_~inlen~0=v_main_~inlen~0_9, main_~bufferlen~0=v_main_~bufferlen~0_14} AuxVars[] AssignedVars[] [2021-05-01 07:10:01,424 WARN L240 tifierPushTermWalker]: treesize reduction 23, result has 89.2 percent of original size [2021-05-01 07:10:01,441 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,445 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,451 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,456 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,460 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,464 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,468 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,473 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,477 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,481 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,485 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,491 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,495 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,501 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,505 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,512 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,518 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,523 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,527 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,531 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:10:01,543 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,547 INFO L108 tifierPushTermWalker]: treesize reduction 5, result has 16.7 percent of original size [2021-05-01 07:10:01,548 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:10:01,553 INFO L732 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-05-01 07:10:01,559 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,562 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,570 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:01,603 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,617 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:01,622 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,627 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,630 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,631 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:10:01,637 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,640 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,644 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,647 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,648 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:10:01,652 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,658 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,666 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,670 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,673 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,676 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,680 INFO L108 tifierPushTermWalker]: treesize reduction 5, result has 16.7 percent of original size [2021-05-01 07:10:01,683 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,686 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:01,690 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,693 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,697 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,700 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,703 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,706 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,710 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,714 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:10:01,718 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,721 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:01,724 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,727 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,731 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,738 WARN L245 tifierPushTermWalker]: treesize reduction 23, result has 89.2 percent of original size 189 [2021-05-01 07:10:01,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-05-01 07:10:01,831 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:10:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:01,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:01,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:01,886 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-05-01 07:10:01,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:10:01,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:10:01,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:10:01,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:01,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:01,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:01,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:10:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:01,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:01,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-01 07:10:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:01,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:01,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-05-01 07:10:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:01,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:01,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-05-01 07:10:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:01,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:10:01,981 INFO L142 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-05-01 07:10:01,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:01,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:01,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:10:01,995 INFO L147 QuantifierPusher]: treesize reduction 32, result has 71.9 percent of original size 82 [2021-05-01 07:10:02,091 INFO L142 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-05-01 07:10:02,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:10:02,129 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.7 percent of original size [2021-05-01 07:10:02,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:10:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:10:02,194 INFO L142 QuantifierPusher]: treesize reduction 4, result has 91.1 percent of original size [2021-05-01 07:10:02,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 07:10:02,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:10:02,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:10:02,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 07:10:02,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:10:02,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 07:10:02,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 07:10:02,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:10:02,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 07:10:02,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:10:02,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:02,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:10:02,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:10:02,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:02,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:10:02,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:02,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:10:02,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:02,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:10:02,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:02,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:10:02,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:10:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:10:02,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:02,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:02,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:02,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:02,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:10:02,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:02,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:02,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:02,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:10:03,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:03,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:10:03,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:03,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:10:03,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:03,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:10:03,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:03,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:10:03,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 07:10:03,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:10:03,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:10:03,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:10:03,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:10:03,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:10:03,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:10:03,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:03,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:03,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:10:03,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:03,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:03,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:10:03,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:03,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:10:03,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:10:03,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:10:03,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:10:03,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:03,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:10:03,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:10:03,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:03,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:03,459 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:10:03,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436524095] [2021-05-01 07:10:03,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [436524095] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:10:03,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:10:03,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-01 07:10:03,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027857921] [2021-05-01 07:10:03,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-01 07:10:03,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:10:03,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-01 07:10:03,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2021-05-01 07:10:03,461 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 24 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 16 states have internal predecessors, (30), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2021-05-01 07:10:05,051 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2021-05-01 07:10:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:10:15,031 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2021-05-01 07:10:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-01 07:10:15,032 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 16 states have internal predecessors, (30), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 57 [2021-05-01 07:10:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:10:15,034 INFO L225 Difference]: With dead ends: 74 [2021-05-01 07:10:15,034 INFO L226 Difference]: Without dead ends: 65 [2021-05-01 07:10:15,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 19 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 10033.1ms TimeCoverageRelationStatistics Valid=292, Invalid=1420, Unknown=10, NotChecked=0, Total=1722 [2021-05-01 07:10:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-01 07:10:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-05-01 07:10:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 12 states have call successors, (12), 10 states have call predecessors, (12), 8 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-01 07:10:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2021-05-01 07:10:15,051 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 57 [2021-05-01 07:10:15,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:10:15,051 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2021-05-01 07:10:15,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 16 states have internal predecessors, (30), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2021-05-01 07:10:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2021-05-01 07:10:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-01 07:10:15,052 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:10:15,053 INFO L519 BasicCegarLoop]: trace histogram [8, 7, 7, 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] [2021-05-01 07:10:15,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-01 07:10:15,053 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:10:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:10:15,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1121193385, now seen corresponding path program 1 times [2021-05-01 07:10:15,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:10:15,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993587378] [2021-05-01 07:10:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:10:15,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:10:15,068 INFO L181 rdanLoopAcceleration]: Guard: Formula: (let ((.cse0 (+ v_main_~in~0_20 1))) (and (<= |v_main_#t~nondet5_11| 2147483647) (< v_main_~buf~0_34 v_main_~bufferlen~0_17) (<= 0 v_main_~buf~0_34) (not (= v_main_~buflim~0_6 v_main_~buf~0_34)) (<= 0 .cse0) (<= 0 (+ |v_main_#t~nondet5_11| 2147483648)) (not (= |v_main_#t~nondet5_11| 0)) (< .cse0 v_main_~inlen~0_12))) InVars {main_#t~nondet5=|v_main_#t~nondet5_11|, main_~in~0=v_main_~in~0_20, main_~buf~0=v_main_~buf~0_34, main_~buflim~0=v_main_~buflim~0_6, main_~inlen~0=v_main_~inlen~0_12, main_~bufferlen~0=v_main_~bufferlen~0_17} OutVars{main_#t~nondet5=|v_main_#t~nondet5_11|, main_~in~0=v_main_~in~0_20, main_~buf~0=v_main_~buf~0_34, main_~buflim~0=v_main_~buflim~0_6, main_~inlen~0=v_main_~inlen~0_12, main_~bufferlen~0=v_main_~bufferlen~0_17} AuxVars[] AssignedVars[] [2021-05-01 07:10:15,076 WARN L240 tifierPushTermWalker]: treesize reduction 23, result has 89.2 percent of original size [2021-05-01 07:10:15,082 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,086 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,091 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,095 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,099 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,104 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,108 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,112 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,120 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,125 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,130 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,135 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,139 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,144 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,146 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,147 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,151 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,155 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,159 INFO L108 tifierPushTermWalker]: treesize reduction 5, result has 16.7 percent of original size [2021-05-01 07:10:15,163 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,166 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:10:15,169 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,170 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:10:15,171 INFO L732 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-05-01 07:10:15,173 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,175 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,187 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:15,192 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,198 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,203 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,210 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:15,214 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,215 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:10:15,219 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,224 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,228 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,232 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,233 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:10:15,237 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,269 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:10:15,272 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,276 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,279 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,286 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,290 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,293 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,296 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,307 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,311 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,314 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,318 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:10:15,321 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,324 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,331 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:10:15,334 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,337 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,341 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,344 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,347 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,350 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:10:15,352 WARN L245 tifierPushTermWalker]: treesize reduction 23, result has 89.2 percent of original size 189 [2021-05-01 07:10:15,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:10:15,417 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:10:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:15,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:15,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:15,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:10:15,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 07:10:15,505 INFO L142 QuantifierPusher]: treesize reduction 5, result has 79.2 percent of original size [2021-05-01 07:10:15,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 07:10:15,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-05-01 07:10:15,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:10:15,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:10:15,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:15,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:15,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:15,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:10:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:15,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-05-01 07:10:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:15,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-01 07:10:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:15,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:10:15,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:10:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-05-01 07:10:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:10:15,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:10:15,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 90.6 percent of original size [2021-05-01 07:10:15,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:15,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:10:15,620 INFO L147 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 107 [2021-05-01 07:10:15,748 INFO L142 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-05-01 07:10:15,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:10:15,792 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.4 percent of original size [2021-05-01 07:10:15,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:15,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:10:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:10:15,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:10:15,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:15,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:10:15,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:10:15,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:15,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:15,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:10:15,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:10:16,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:10:16,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:10:16,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:10:16,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:10:16,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:10:16,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:10:16,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:10:16,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:10:16,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 07:10:16,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 07:10:16,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:10:16,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 07:10:16,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:10:16,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:10:16,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:10:16,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:10:16,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:16,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 07:10:16,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:16,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:10:16,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:16,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 07:10:16,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:16,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 07:10:16,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:10:16,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 07:10:16,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:10:16,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:10:16,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:10:16,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:10:16,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:10:16,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:10:16,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:10:16,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:10:16,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:10:16,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:10:16,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 07:10:16,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:10:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 07:10:16,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:10:16,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:10:16,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:10:16,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 07:10:16,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:10:16,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:10:16,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:10:16,820 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:10:16,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993587378] [2021-05-01 07:10:16,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [993587378] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:10:16,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:10:16,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-01 07:10:16,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859251245] [2021-05-01 07:10:16,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-01 07:10:16,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:10:16,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-01 07:10:16,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2021-05-01 07:10:16,822 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 20 states have internal predecessors, (35), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2021-05-01 07:10:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:10:18,308 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2021-05-01 07:10:18,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-01 07:10:18,309 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 20 states have internal predecessors, (35), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 59 [2021-05-01 07:10:18,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:10:18,309 INFO L225 Difference]: With dead ends: 65 [2021-05-01 07:10:18,309 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 07:10:18,311 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 2112.9ms TimeCoverageRelationStatistics Valid=373, Invalid=1789, Unknown=0, NotChecked=0, Total=2162 [2021-05-01 07:10:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 07:10:18,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 07:10:18,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-01 07:10:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 07:10:18,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-05-01 07:10:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:10:18,311 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 07:10:18,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 20 states have internal predecessors, (35), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2021-05-01 07:10:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 07:10:18,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 07:10:18,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-01 07:10:18,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-01 07:10:19,124 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 61 [2021-05-01 07:10:19,275 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 58 [2021-05-01 07:10:19,798 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 61 [2021-05-01 07:10:19,909 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-05-01 07:10:25,886 WARN L205 SmtUtils]: Spent 5.97 s on a formula simplification. DAG size of input: 243 DAG size of output: 61 [2021-05-01 07:10:26,096 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 21 [2021-05-01 07:10:26,279 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 54 [2021-05-01 07:10:26,516 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 49 [2021-05-01 07:10:26,631 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 49 [2021-05-01 07:10:26,883 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 64 [2021-05-01 07:10:27,236 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 58 [2021-05-01 07:10:27,353 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2021-05-01 07:10:27,606 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 60 [2021-05-01 07:10:27,734 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 1 [2021-05-01 07:10:28,059 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 60 [2021-05-01 07:10:28,134 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L198 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L194 CegarLoopUtils]: At program point L31-1(lines 25 56) the Hoare annotation is: (<= 2 main_~bufferlen~0) [2021-05-01 07:10:28,135 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 24 56) the Hoare annotation is: true [2021-05-01 07:10:28,135 INFO L194 CegarLoopUtils]: At program point L52(line 52) the Hoare annotation is: (and (let ((.cse0 (<= 0 main_~buf~0)) (.cse1 (<= 2 main_~bufferlen~0))) (or (and .cse0 (<= 1 main_~in~0) .cse1) (and .cse0 (= main_~in~0 0) .cse1))) (<= (+ main_~buf~0 1) main_~bufferlen~0)) [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L52-1(line 52) the Hoare annotation is: (and (let ((.cse0 (<= 0 main_~buf~0)) (.cse1 (<= 2 main_~bufferlen~0))) (or (and .cse0 (<= 1 main_~in~0) .cse1) (and .cse0 (= main_~in~0 0) .cse1))) (<= (+ main_~buf~0 1) main_~bufferlen~0)) [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L44(lines 44 45) the Hoare annotation is: (and (<= (+ main_~in~0 main_~bufferlen~0 1) (+ main_~buf~0 main_~inlen~0)) (let ((.cse0 (<= 2 main_~bufferlen~0))) (or (and (<= 1 main_~in~0) .cse0) (and (= main_~in~0 0) .cse0))) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse1) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 1) main_~bufferlen~0) (<= (+ main_~bufferlen~0 1) main_~inlen~0)) [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L32(lines 25 56) the Hoare annotation is: (<= 2 main_~bufferlen~0) [2021-05-01 07:10:28,136 INFO L201 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: true [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (or (and (exists ((v_main_~buf~0_28 Int) (v_main_~buflim~0_BEFORE_RETURN_1 Int) (v_main_~inlen~0_BEFORE_RETURN_1 Int) (v_main_~bufferlen~0_BEFORE_RETURN_1 Int) (v_main_~in~0_BEFORE_RETURN_1 Int)) (let ((.cse0 (+ v_main_~buflim~0_BEFORE_RETURN_1 1))) (and (= (ite (<= 0 v_main_~buf~0_28) 1 0) (ite (<= 0 main_~buf~0) 1 0)) (<= (+ v_main_~buflim~0_BEFORE_RETURN_1 2) v_main_~bufferlen~0_BEFORE_RETURN_1) (< 0 .cse0) (or (let ((.cse1 (+ v_main_~in~0_BEFORE_RETURN_1 1))) (and (< v_main_~buf~0_28 .cse0) (<= v_main_~buf~0_28 .cse1) (< v_main_~in~0_BEFORE_RETURN_1 v_main_~inlen~0_BEFORE_RETURN_1) (< 0 v_main_~buf~0_28) (<= v_main_~inlen~0_BEFORE_RETURN_1 .cse1))) (= v_main_~buf~0_28 0)) (not (= v_main_~buf~0_28 v_main_~buflim~0_BEFORE_RETURN_1))))) (exists ((v_main_~buf~0_28 Int) (v_main_~buf~0_BEFORE_CALL_2 Int) (v_main_~buflim~0_BEFORE_RETURN_1 Int) (v_main_~inlen~0_BEFORE_RETURN_1 Int) (v_main_~bufferlen~0_BEFORE_CALL_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_1 Int) (v_main_~in~0_BEFORE_RETURN_1 Int)) (let ((.cse3 (+ v_main_~buflim~0_BEFORE_RETURN_1 1)) (.cse2 (ite (< v_main_~buf~0_BEFORE_CALL_2 v_main_~bufferlen~0_BEFORE_CALL_2) 1 0))) (and (not (= .cse2 0)) (= (ite (<= 0 v_main_~buf~0_28) 1 0) (ite (<= 0 v_main_~buf~0_BEFORE_CALL_2) 1 0)) (<= (+ v_main_~buflim~0_BEFORE_RETURN_1 2) v_main_~bufferlen~0_BEFORE_RETURN_1) (< 0 .cse3) (or (let ((.cse4 (+ v_main_~in~0_BEFORE_RETURN_1 1))) (and (< v_main_~buf~0_28 .cse3) (<= v_main_~buf~0_28 .cse4) (< v_main_~in~0_BEFORE_RETURN_1 v_main_~inlen~0_BEFORE_RETURN_1) (< 0 v_main_~buf~0_28) (<= v_main_~inlen~0_BEFORE_RETURN_1 .cse4))) (= v_main_~buf~0_28 0)) (not (= v_main_~buf~0_28 v_main_~buflim~0_BEFORE_RETURN_1)) (= (ite (< main_~in~0 main_~inlen~0) 1 0) .cse2)))) (<= 3 main_~inlen~0) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= 1 main_~in~0)) (and (= main_~in~0 0) (= main_~buf~0 0) (<= 2 main_~bufferlen~0))) [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (let ((.cse0 (<= (+ main_~bufferlen~0 1) main_~inlen~0))) (or (and (not (= main_~buf~0 main_~buflim~0)) (= main_~in~0 0) (<= (+ main_~buflim~0 2) main_~bufferlen~0) (< 0 (+ main_~buflim~0 1)) (= main_~buf~0 0) .cse0) (and (<= (+ main_~in~0 main_~bufferlen~0 1) (+ main_~buf~0 main_~inlen~0)) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse1) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= 1 main_~in~0) .cse0))) [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (let ((.cse0 (<= (+ main_~bufferlen~0 1) main_~inlen~0))) (or (and (not (= main_~buf~0 main_~buflim~0)) (= main_~in~0 0) (<= (+ main_~buflim~0 2) main_~bufferlen~0) (< 0 (+ main_~buflim~0 1)) (= main_~buf~0 0) .cse0) (and (<= (+ main_~in~0 main_~bufferlen~0 1) (+ main_~buf~0 main_~inlen~0)) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse1) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= 1 main_~in~0) .cse0))) [2021-05-01 07:10:28,136 INFO L194 CegarLoopUtils]: At program point L37-1(lines 37 48) the Hoare annotation is: (let ((.cse0 (<= (+ main_~bufferlen~0 1) main_~inlen~0))) (or (and (<= 0 (+ |main_#t~nondet5| 2147483648)) (= main_~in~0 0) (<= (+ main_~buflim~0 2) main_~bufferlen~0) (< 0 (+ main_~buflim~0 1)) (<= |main_#t~nondet5| 2147483647) (= main_~buf~0 0) .cse0) (and (<= (+ main_~in~0 main_~bufferlen~0 1) (+ main_~buf~0 main_~inlen~0)) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse1) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= 1 main_~in~0) .cse0))) [2021-05-01 07:10:28,137 INFO L194 CegarLoopUtils]: At program point L37-3(lines 37 48) the Hoare annotation is: (or (and (exists ((v_main_~buf~0_28 Int) (v_main_~buflim~0_BEFORE_RETURN_1 Int) (v_main_~inlen~0_BEFORE_RETURN_1 Int) (v_main_~bufferlen~0_BEFORE_RETURN_1 Int) (v_main_~in~0_BEFORE_RETURN_1 Int)) (let ((.cse0 (+ v_main_~buflim~0_BEFORE_RETURN_1 1))) (and (= (ite (<= 0 v_main_~buf~0_28) 1 0) (ite (<= 0 main_~buf~0) 1 0)) (<= (+ v_main_~buflim~0_BEFORE_RETURN_1 2) v_main_~bufferlen~0_BEFORE_RETURN_1) (< 0 .cse0) (or (let ((.cse1 (+ v_main_~in~0_BEFORE_RETURN_1 1))) (and (< v_main_~buf~0_28 .cse0) (<= v_main_~buf~0_28 .cse1) (< v_main_~in~0_BEFORE_RETURN_1 v_main_~inlen~0_BEFORE_RETURN_1) (< 0 v_main_~buf~0_28) (<= v_main_~inlen~0_BEFORE_RETURN_1 .cse1))) (= v_main_~buf~0_28 0)) (not (= v_main_~buf~0_28 v_main_~buflim~0_BEFORE_RETURN_1))))) (exists ((v_main_~buf~0_28 Int) (v_main_~buf~0_BEFORE_CALL_2 Int) (v_main_~buflim~0_BEFORE_RETURN_1 Int) (v_main_~inlen~0_BEFORE_RETURN_1 Int) (v_main_~bufferlen~0_BEFORE_CALL_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_1 Int) (v_main_~in~0_BEFORE_RETURN_1 Int)) (let ((.cse3 (+ v_main_~buflim~0_BEFORE_RETURN_1 1)) (.cse2 (ite (< v_main_~buf~0_BEFORE_CALL_2 v_main_~bufferlen~0_BEFORE_CALL_2) 1 0))) (and (not (= .cse2 0)) (= (ite (<= 0 v_main_~buf~0_28) 1 0) (ite (<= 0 v_main_~buf~0_BEFORE_CALL_2) 1 0)) (<= (+ v_main_~buflim~0_BEFORE_RETURN_1 2) v_main_~bufferlen~0_BEFORE_RETURN_1) (< 0 .cse3) (or (let ((.cse4 (+ v_main_~in~0_BEFORE_RETURN_1 1))) (and (< v_main_~buf~0_28 .cse3) (<= v_main_~buf~0_28 .cse4) (< v_main_~in~0_BEFORE_RETURN_1 v_main_~inlen~0_BEFORE_RETURN_1) (< 0 v_main_~buf~0_28) (<= v_main_~inlen~0_BEFORE_RETURN_1 .cse4))) (= v_main_~buf~0_28 0)) (not (= v_main_~buf~0_28 v_main_~buflim~0_BEFORE_RETURN_1)) (= (ite (< main_~in~0 main_~inlen~0) 1 0) .cse2)))) (<= 3 main_~inlen~0) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= 1 main_~in~0)) (and (= main_~in~0 0) (= main_~buf~0 0) (<= 2 main_~bufferlen~0))) [2021-05-01 07:10:28,137 INFO L194 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (and (<= 2 main_~bufferlen~0) (<= (+ main_~bufferlen~0 1) main_~inlen~0)) [2021-05-01 07:10:28,137 INFO L194 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (let ((.cse4 (<= 0 main_~buf~0))) (or (and .cse4 (<= 1 main_~in~0)) (and .cse4 (= main_~in~0 0)))))) (or (and (= main_~buf~0 0) (<= 2 main_~bufferlen~0) .cse0) (and (exists ((v_main_~buf~0_28 Int) (v_main_~buf~0_BEFORE_CALL_2 Int) (v_main_~buflim~0_BEFORE_RETURN_1 Int) (v_main_~inlen~0_BEFORE_RETURN_1 Int) (v_main_~bufferlen~0_BEFORE_CALL_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_1 Int) (v_main_~in~0_BEFORE_RETURN_1 Int)) (let ((.cse2 (+ v_main_~buflim~0_BEFORE_RETURN_1 1)) (.cse1 (ite (< v_main_~buf~0_BEFORE_CALL_2 v_main_~bufferlen~0_BEFORE_CALL_2) 1 0))) (and (not (= .cse1 0)) (= (ite (<= 0 v_main_~buf~0_28) 1 0) (ite (<= 0 v_main_~buf~0_BEFORE_CALL_2) 1 0)) (<= (+ v_main_~buflim~0_BEFORE_RETURN_1 2) v_main_~bufferlen~0_BEFORE_RETURN_1) (< 0 .cse2) (or (let ((.cse3 (+ v_main_~in~0_BEFORE_RETURN_1 1))) (and (< v_main_~buf~0_28 .cse2) (<= v_main_~buf~0_28 .cse3) (< v_main_~in~0_BEFORE_RETURN_1 v_main_~inlen~0_BEFORE_RETURN_1) (< 0 v_main_~buf~0_28) (<= v_main_~inlen~0_BEFORE_RETURN_1 .cse3))) (= v_main_~buf~0_28 0)) (not (= v_main_~buf~0_28 v_main_~buflim~0_BEFORE_RETURN_1)) (= (ite (< main_~in~0 main_~inlen~0) 1 0) .cse1)))) (<= 3 main_~inlen~0) (<= (+ main_~buf~0 2) main_~bufferlen~0) .cse0))) [2021-05-01 07:10:28,137 INFO L194 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (and (<= (+ main_~in~0 1) main_~inlen~0) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse0 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse0) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse0 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 1) main_~bufferlen~0) (<= 1 main_~in~0) (<= 2 main_~bufferlen~0) (<= (+ main_~bufferlen~0 1) main_~inlen~0)) [2021-05-01 07:10:28,137 INFO L194 CegarLoopUtils]: At program point L46-1(line 46) the Hoare annotation is: (and (<= (+ main_~in~0 1) main_~inlen~0) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse0 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse0) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse0 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 1) main_~bufferlen~0) (<= 1 main_~in~0) (<= 2 main_~bufferlen~0) (<= (+ main_~bufferlen~0 1) main_~inlen~0)) [2021-05-01 07:10:28,137 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 24 56) the Hoare annotation is: true [2021-05-01 07:10:28,137 INFO L194 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (and (<= (+ main_~in~0 main_~bufferlen~0 1) (+ main_~buf~0 main_~inlen~0)) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= (+ main_~bufferlen~0 1) main_~inlen~0) (let ((.cse0 (<= 0 main_~buf~0))) (or (and .cse0 (<= 1 main_~in~0)) (and .cse0 (= main_~in~0 0))))) [2021-05-01 07:10:28,138 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 24 56) the Hoare annotation is: true [2021-05-01 07:10:28,138 INFO L201 CegarLoopUtils]: At program point L55(lines 25 56) the Hoare annotation is: true [2021-05-01 07:10:28,138 INFO L194 CegarLoopUtils]: At program point L47(lines 37 48) the Hoare annotation is: (let ((.cse0 (<= (+ main_~bufferlen~0 1) main_~inlen~0))) (or (and (= main_~in~0 0) (<= (+ main_~buflim~0 2) main_~bufferlen~0) (< 0 (+ main_~buflim~0 1)) (= main_~buf~0 0) .cse0) (and (<= (+ main_~in~0 1) main_~inlen~0) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse1) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 1) main_~bufferlen~0) (<= 1 main_~in~0) (<= 2 main_~bufferlen~0) .cse0))) [2021-05-01 07:10:28,138 INFO L194 CegarLoopUtils]: At program point L39(lines 39 40) the Hoare annotation is: (let ((.cse0 (<= (+ main_~bufferlen~0 1) main_~inlen~0))) (or (and (= main_~in~0 0) (<= (+ main_~buflim~0 2) main_~bufferlen~0) (< 0 (+ main_~buflim~0 1)) (= main_~buf~0 0) .cse0) (and (<= (+ main_~in~0 main_~bufferlen~0 1) (+ main_~buf~0 main_~inlen~0)) (exists ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (and (= (ite (<= 0 main_~buf~0) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0)) (or (and (< v_main_~in~0_BEFORE_RETURN_2 .cse1) (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2) (or (< v_main_~buflim~0_BEFORE_RETURN_2 1) (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1))) (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36) (< 0 v_main_~in~0_BEFORE_RETURN_2) (not (= v_main_~buflim~0_BEFORE_RETURN_2 0))) (and (= v_main_~in~0_BEFORE_RETURN_2 0) (= v_main_~buf~0_36 0))) (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2) (not (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2)) (<= 3 v_main_~inlen~0_BEFORE_RETURN_2)))) (<= (+ main_~buf~0 2) main_~bufferlen~0) (<= 1 main_~in~0) .cse0))) [2021-05-01 07:10:28,138 INFO L194 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (let ((.cse0 (= |__VERIFIER_assert_#in~cond| 0))) (and (or .cse0 (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (forall ((v_main_~bufferlen~0_BEFORE_CALL_5 Int) (v_main_~buf~0_BEFORE_CALL_5 Int)) (or (forall ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (or (and (or (not (= v_main_~buf~0_36 0)) (not (= v_main_~in~0_BEFORE_RETURN_2 0))) (or (not (< v_main_~in~0_BEFORE_RETURN_2 .cse1)) (and (not (< v_main_~buflim~0_BEFORE_RETURN_2 1)) (not (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1)))) (not (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2)) (not (< 0 v_main_~in~0_BEFORE_RETURN_2)) (= v_main_~buflim~0_BEFORE_RETURN_2 0) (not (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36)))) (not (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2)) (not (= (ite (<= 0 v_main_~buf~0_BEFORE_CALL_5) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0))) (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2) (not (<= 3 v_main_~inlen~0_BEFORE_RETURN_2))))) (not (= (ite (< v_main_~buf~0_BEFORE_CALL_5 v_main_~bufferlen~0_BEFORE_CALL_5) 1 0) |__VERIFIER_assert_#in~cond|))))) (or .cse0 (not (= __VERIFIER_assert_~cond 0))))) [2021-05-01 07:10:28,138 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-05-01 07:10:28,138 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (let ((.cse0 (= |__VERIFIER_assert_#in~cond| 0))) (and (or .cse0 (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (forall ((v_main_~bufferlen~0_BEFORE_CALL_5 Int) (v_main_~buf~0_BEFORE_CALL_5 Int)) (or (forall ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (or (and (or (not (= v_main_~buf~0_36 0)) (not (= v_main_~in~0_BEFORE_RETURN_2 0))) (or (not (< v_main_~in~0_BEFORE_RETURN_2 .cse1)) (and (not (< v_main_~buflim~0_BEFORE_RETURN_2 1)) (not (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1)))) (not (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2)) (not (< 0 v_main_~in~0_BEFORE_RETURN_2)) (= v_main_~buflim~0_BEFORE_RETURN_2 0) (not (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36)))) (not (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2)) (not (= (ite (<= 0 v_main_~buf~0_BEFORE_CALL_5) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0))) (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2) (not (<= 3 v_main_~inlen~0_BEFORE_RETURN_2))))) (not (= (ite (< v_main_~buf~0_BEFORE_CALL_5 v_main_~bufferlen~0_BEFORE_CALL_5) 1 0) |__VERIFIER_assert_#in~cond|))))) (or .cse0 (not (= __VERIFIER_assert_~cond 0))))) [2021-05-01 07:10:28,138 INFO L194 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-01 07:10:28,139 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-01 07:10:28,139 INFO L194 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (let ((.cse0 (= |__VERIFIER_assert_#in~cond| 0))) (and (or .cse0 (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (forall ((v_main_~bufferlen~0_BEFORE_CALL_5 Int) (v_main_~buf~0_BEFORE_CALL_5 Int)) (or (forall ((v_main_~buflim~0_BEFORE_RETURN_2 Int) (v_main_~in~0_BEFORE_RETURN_2 Int) (v_main_~inlen~0_BEFORE_RETURN_2 Int) (v_main_~bufferlen~0_BEFORE_RETURN_3 Int) (v_main_~buf~0_36 Int)) (let ((.cse1 (+ v_main_~bufferlen~0_BEFORE_RETURN_3 1))) (or (and (or (not (= v_main_~buf~0_36 0)) (not (= v_main_~in~0_BEFORE_RETURN_2 0))) (or (not (< v_main_~in~0_BEFORE_RETURN_2 .cse1)) (and (not (< v_main_~buflim~0_BEFORE_RETURN_2 1)) (not (< v_main_~in~0_BEFORE_RETURN_2 (+ v_main_~buflim~0_BEFORE_RETURN_2 1)))) (not (<= v_main_~bufferlen~0_BEFORE_RETURN_3 v_main_~in~0_BEFORE_RETURN_2)) (not (< 0 v_main_~in~0_BEFORE_RETURN_2)) (= v_main_~buflim~0_BEFORE_RETURN_2 0) (not (= v_main_~in~0_BEFORE_RETURN_2 v_main_~buf~0_36)))) (not (<= .cse1 v_main_~inlen~0_BEFORE_RETURN_2)) (not (= (ite (<= 0 v_main_~buf~0_BEFORE_CALL_5) 1 0) (ite (<= 0 v_main_~buf~0_36) 1 0))) (= v_main_~buf~0_36 v_main_~buflim~0_BEFORE_RETURN_2) (not (<= 3 v_main_~inlen~0_BEFORE_RETURN_2))))) (not (= (ite (< v_main_~buf~0_BEFORE_CALL_5 v_main_~bufferlen~0_BEFORE_CALL_5) 1 0) |__VERIFIER_assert_#in~cond|))))) (or .cse0 (not (= __VERIFIER_assert_~cond 0))))) [2021-05-01 07:10:28,148 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,149 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,151 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,151 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,151 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,155 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,155 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,155 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,155 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,155 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,160 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,161 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,161 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,161 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 07:10:28 BoogieIcfgContainer [2021-05-01 07:10:28,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 07:10:28,163 INFO L168 Benchmark]: Toolchain (without parser) took 30484.49 ms. Allocated memory was 192.9 MB in the beginning and 298.8 MB in the end (delta: 105.9 MB). Free memory was 157.8 MB in the beginning and 109.3 MB in the end (delta: 48.5 MB). Peak memory consumption was 157.5 MB. Max. memory is 8.0 GB. [2021-05-01 07:10:28,163 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 192.9 MB. Free memory is still 174.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 07:10:28,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.51 ms. Allocated memory is still 192.9 MB. Free memory was 157.6 MB in the beginning and 176.9 MB in the end (delta: -19.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 07:10:28,164 INFO L168 Benchmark]: Boogie Preprocessor took 33.16 ms. Allocated memory is still 192.9 MB. Free memory was 176.9 MB in the beginning and 175.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-01 07:10:28,164 INFO L168 Benchmark]: RCFGBuilder took 404.24 ms. Allocated memory is still 192.9 MB. Free memory was 175.1 MB in the beginning and 158.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-01 07:10:28,164 INFO L168 Benchmark]: TraceAbstraction took 29803.65 ms. Allocated memory was 192.9 MB in the beginning and 298.8 MB in the end (delta: 105.9 MB). Free memory was 158.4 MB in the beginning and 109.3 MB in the end (delta: 49.1 MB). Peak memory consumption was 158.1 MB. Max. memory is 8.0 GB. [2021-05-01 07:10:28,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 192.9 MB. Free memory is still 174.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.51 ms. Allocated memory is still 192.9 MB. Free memory was 157.6 MB in the beginning and 176.9 MB in the end (delta: -19.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.16 ms. Allocated memory is still 192.9 MB. Free memory was 176.9 MB in the beginning and 175.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 404.24 ms. Allocated memory is still 192.9 MB. Free memory was 175.1 MB in the beginning and 158.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29803.65 ms. Allocated memory was 192.9 MB in the beginning and 298.8 MB in the end (delta: 105.9 MB). Free memory was 158.4 MB in the beginning and 109.3 MB in the end (delta: 49.1 MB). Peak memory consumption was 158.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_CALL_5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19899.6ms, OverallIterations: 8, TraceHistogramMax: 8, EmptinessCheckTime: 22.5ms, AutomataDifference: 14925.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9821.9ms, InitialAbstractionConstructionTime: 11.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 218 SDtfs, 499 SDslu, 433 SDs, 0 SdLazy, 1220 SolverSat, 554 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3822.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 74 SyntacticMatches, 13 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 12995.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=6, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 169.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 36 LocationsWithAnnotation, 198 PreInvPairs, 287 NumberOfFragments, 1701 HoareAnnotationTreeSize, 198 FomulaSimplifications, 3429 FormulaSimplificationTreeSizeReduction, 319.0ms HoareSimplificationTime, 36 FomulaSimplificationsInter, 12294 FormulaSimplificationTreeSizeReductionInter, 9463.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,168 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,169 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] Derived loop invariant: ((((in == 0 && buflim + 2 <= bufferlen) && 0 < buflim + 1) && buf == 0) && bufferlen + 1 <= inlen) || (((((in + 1 <= inlen && (\exists v_main_~buflim~0_BEFORE_RETURN_2 : int, v_main_~in~0_BEFORE_RETURN_2 : int, v_main_~inlen~0_BEFORE_RETURN_2 : int, v_main_~bufferlen~0_BEFORE_RETURN_3 : int, v_main_~buf~0_36 : int :: ((((if 0 <= buf then 1 else 0) == (if 0 <= v_main_~buf~0_36 then 1 else 0) && ((((((v_main_~in~0_BEFORE_RETURN_2 < v_main_~bufferlen~0_BEFORE_RETURN_3 + 1 && v_main_~bufferlen~0_BEFORE_RETURN_3 <= v_main_~in~0_BEFORE_RETURN_2) && (v_main_~buflim~0_BEFORE_RETURN_2 < 1 || v_main_~in~0_BEFORE_RETURN_2 < v_main_~buflim~0_BEFORE_RETURN_2 + 1)) && v_main_~in~0_BEFORE_RETURN_2 == v_main_~buf~0_36) && 0 < v_main_~in~0_BEFORE_RETURN_2) && !(v_main_~buflim~0_BEFORE_RETURN_2 == 0)) || (v_main_~in~0_BEFORE_RETURN_2 == 0 && v_main_~buf~0_36 == 0))) && v_main_~bufferlen~0_BEFORE_RETURN_3 + 1 <= v_main_~inlen~0_BEFORE_RETURN_2) && !(v_main_~buf~0_36 == v_main_~buflim~0_BEFORE_RETURN_2)) && 3 <= v_main_~inlen~0_BEFORE_RETURN_2)) && buf + 1 <= bufferlen) && 1 <= in) && 2 <= bufferlen) && bufferlen + 1 <= inlen) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~in~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_RETURN_3,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_36,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buflim~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~inlen~0_BEFORE_RETURN_2,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~buf~0_BEFORE_CALL_5,QUANTIFIED] [2021-05-01 07:10:28,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~bufferlen~0_BEFORE_CALL_5,QUANTIFIED] Derived contract for procedure __VERIFIER_assert: ((\old(cond) == 0 || \old(cond) == cond) || (forall v_main_~bufferlen~0_BEFORE_CALL_5 : int, v_main_~buf~0_BEFORE_CALL_5 : int :: (forall v_main_~buflim~0_BEFORE_RETURN_2 : int, v_main_~in~0_BEFORE_RETURN_2 : int, v_main_~inlen~0_BEFORE_RETURN_2 : int, v_main_~bufferlen~0_BEFORE_RETURN_3 : int, v_main_~buf~0_36 : int :: (((((!(v_main_~buf~0_36 == 0) || !(v_main_~in~0_BEFORE_RETURN_2 == 0)) && (((((!(v_main_~in~0_BEFORE_RETURN_2 < v_main_~bufferlen~0_BEFORE_RETURN_3 + 1) || (!(v_main_~buflim~0_BEFORE_RETURN_2 < 1) && !(v_main_~in~0_BEFORE_RETURN_2 < v_main_~buflim~0_BEFORE_RETURN_2 + 1))) || !(v_main_~bufferlen~0_BEFORE_RETURN_3 <= v_main_~in~0_BEFORE_RETURN_2)) || !(0 < v_main_~in~0_BEFORE_RETURN_2)) || v_main_~buflim~0_BEFORE_RETURN_2 == 0) || !(v_main_~in~0_BEFORE_RETURN_2 == v_main_~buf~0_36))) || !(v_main_~bufferlen~0_BEFORE_RETURN_3 + 1 <= v_main_~inlen~0_BEFORE_RETURN_2)) || !((if 0 <= v_main_~buf~0_BEFORE_CALL_5 then 1 else 0) == (if 0 <= v_main_~buf~0_36 then 1 else 0))) || v_main_~buf~0_36 == v_main_~buflim~0_BEFORE_RETURN_2) || !(3 <= v_main_~inlen~0_BEFORE_RETURN_2)) || !((if v_main_~buf~0_BEFORE_CALL_5 < v_main_~bufferlen~0_BEFORE_CALL_5 then 1 else 0) == \old(cond)))) && (\old(cond) == 0 || !(cond == 0)) RESULT: Ultimate proved your program to be correct! Received shutdown request...