/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-new/count_by_nondet.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 07:23:24,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 07:23:24,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 07:23:24,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 07:23:24,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 07:23:24,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 07:23:24,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 07:23:24,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 07:23:24,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 07:23:24,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 07:23:24,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 07:23:24,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 07:23:24,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 07:23:24,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 07:23:24,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 07:23:24,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 07:23:24,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 07:23:24,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 07:23:24,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 07:23:24,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 07:23:24,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 07:23:24,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 07:23:24,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 07:23:24,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 07:23:24,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 07:23:24,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 07:23:24,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 07:23:24,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 07:23:24,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 07:23:24,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 07:23:24,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 07:23:24,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 07:23:24,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 07:23:24,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 07:23:24,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 07:23:24,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 07:23:24,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 07:23:24,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 07:23:24,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 07:23:24,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 07:23:24,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 07:23:24,436 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 07:23:24,444 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 07:23:24,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 07:23:24,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 07:23:24,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 07:23:24,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 07:23:24,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 07:23:24,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 07:23:24,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 07:23:24,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 07:23:24,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 07:23:24,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 07:23:24,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 07:23:24,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 07:23:24,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 07:23:24,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 07:23:24,448 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 07:23:24,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 07:23:24,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 07:23:24,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 07:23:24,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 07:23:24,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 07:23:24,779 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 07:23:24,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_nondet.i [2021-05-01 07:23:24,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b570fcdc/28e5a6ebc7c44e498dbb0b442e1de469/FLAGbe885d168 [2021-05-01 07:23:25,236 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 07:23:25,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_nondet.i [2021-05-01 07:23:25,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b570fcdc/28e5a6ebc7c44e498dbb0b442e1de469/FLAGbe885d168 [2021-05-01 07:23:25,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b570fcdc/28e5a6ebc7c44e498dbb0b442e1de469 [2021-05-01 07:23:25,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 07:23:25,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 07:23:25,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 07:23:25,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 07:23:25,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 07:23:25,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7b4995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25, skipping insertion in model container [2021-05-01 07:23:25,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 07:23:25,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 07:23:25,418 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-new/count_by_nondet.i[891,904] [2021-05-01 07:23:25,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:23:25,434 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 07:23:25,445 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-new/count_by_nondet.i[891,904] [2021-05-01 07:23:25,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:23:25,464 INFO L208 MainTranslator]: Completed translation [2021-05-01 07:23:25,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25 WrapperNode [2021-05-01 07:23:25,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 07:23:25,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 07:23:25,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 07:23:25,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 07:23:25,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (1/1) ... [2021-05-01 07:23:25,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 07:23:25,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 07:23:25,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 07:23:25,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 07:23:25,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (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 07:23:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 07:23:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 07:23:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 07:23:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 07:23:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 07:23:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 07:23:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 07:23:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 07:23:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 07:23:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 07:23:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 07:23:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 07:23:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 07:23:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 07:23:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 07:23:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 07:23:25,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 07:23:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 07:23:25,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 07:23:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 07:23:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 07:23:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 07:23:25,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 07:23:25,857 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 07:23:25,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:23:25 BoogieIcfgContainer [2021-05-01 07:23:25,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 07:23:25,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 07:23:25,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 07:23:25,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 07:23:25,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:23:25" (1/3) ... [2021-05-01 07:23:25,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edff84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:23:25, skipping insertion in model container [2021-05-01 07:23:25,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:23:25" (2/3) ... [2021-05-01 07:23:25,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edff84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:23:25, skipping insertion in model container [2021-05-01 07:23:25,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:23:25" (3/3) ... [2021-05-01 07:23:25,865 INFO L111 eAbstractionObserver]: Analyzing ICFG count_by_nondet.i [2021-05-01 07:23:25,870 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 07:23:25,875 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 07:23:25,891 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 07:23:25,910 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 07:23:25,910 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 07:23:25,910 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 07:23:25,910 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 07:23:25,911 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 07:23:25,911 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 07:23:25,911 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 07:23:25,911 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 07:23:25,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 07:23:25,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 07:23:25,930 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:25,931 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:25,932 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:25,936 INFO L82 PathProgramCache]: Analyzing trace with hash 2089905556, now seen corresponding path program 1 times [2021-05-01 07:23:25,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:25,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296553149] [2021-05-01 07:23:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:26,009 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:23:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:26,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:26,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:26,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,219 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 07:23:26,221 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:26,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296553149] [2021-05-01 07:23:26,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [296553149] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:26,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:26,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 07:23:26,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631227461] [2021-05-01 07:23:26,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 07:23:26,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:26,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 07:23:26,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 07:23:26,241 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 07:23:26,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:26,397 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-05-01 07:23:26,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 07:23:26,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2021-05-01 07:23:26,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:26,404 INFO L225 Difference]: With dead ends: 36 [2021-05-01 07:23:26,404 INFO L226 Difference]: Without dead ends: 15 [2021-05-01 07:23:26,407 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 106.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 07:23:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-01 07:23:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-05-01 07:23:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 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 07:23:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-01 07:23:26,453 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-05-01 07:23:26,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:26,454 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-01 07:23:26,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 07:23:26,454 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-01 07:23:26,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 07:23:26,455 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:26,456 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:26,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 07:23:26,456 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:26,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:26,457 INFO L82 PathProgramCache]: Analyzing trace with hash -545306800, now seen corresponding path program 1 times [2021-05-01 07:23:26,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:26,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125058695] [2021-05-01 07:23:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:26,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,517 INFO L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-05-01 07:23:26,518 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~i~0_7 1000000) (<= |v_main_#t~nondet3_4| 2147483647) (<= 1 |v_main_#t~nondet3_4|) (<= 0 (+ |v_main_#t~nondet3_4| 2147483648)) (< |v_main_#t~nondet3_4| 1000000)) InVars {main_~i~0=v_main_~i~0_7, main_#t~nondet3=|v_main_#t~nondet3_4|} OutVars{main_~i~0=v_main_~i~0_7, main_#t~nondet3=|v_main_#t~nondet3_4|} AuxVars[] AssignedVars[] [2021-05-01 07:23:26,540 WARN L240 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size [2021-05-01 07:23:26,555 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,557 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,567 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,567 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:26,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,570 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:26,574 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,578 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,581 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,584 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,586 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,591 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,594 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,597 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,601 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,604 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,606 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,608 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,611 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,614 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,616 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,619 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,621 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,623 WARN L245 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size 80 [2021-05-01 07:23:26,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:23:26,676 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:26,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:26,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:26,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,776 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 07:23:26,782 INFO L142 QuantifierPusher]: treesize reduction 6, result has 91.9 percent of original size [2021-05-01 07:23:26,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:26,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:26,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:26,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:26,789 INFO L147 QuantifierPusher]: treesize reduction 38, result has 7.3 percent of original size 3 [2021-05-01 07:23:26,802 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-05-01 07:23:26,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:23:26,813 INFO L142 QuantifierPusher]: treesize reduction 8, result has 72.4 percent of original size [2021-05-01 07:23:26,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 07:23:26,840 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-05-01 07:23:26,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:23:26,841 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:26,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125058695] [2021-05-01 07:23:26,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1125058695] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:26,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:26,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 07:23:26,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174070552] [2021-05-01 07:23:26,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 07:23:26,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:26,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 07:23:26,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-01 07:23:26,844 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 07:23:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:26,929 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-05-01 07:23:26,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 07:23:26,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 13 [2021-05-01 07:23:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:26,931 INFO L225 Difference]: With dead ends: 21 [2021-05-01 07:23:26,931 INFO L226 Difference]: Without dead ends: 16 [2021-05-01 07:23:26,932 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 107.1ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-05-01 07:23:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-01 07:23:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-01 07:23:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 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 07:23:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-01 07:23:26,938 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2021-05-01 07:23:26,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:26,938 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-01 07:23:26,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 07:23:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-01 07:23:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-01 07:23:26,939 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:26,939 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:26,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 07:23:26,939 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:26,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:26,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1046323724, now seen corresponding path program 2 times [2021-05-01 07:23:26,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:26,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849790182] [2021-05-01 07:23:26,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:26,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:23:26,957 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 0 (+ |v_main_#t~nondet3_8| 2147483648)) (<= |v_main_#t~nondet3_8| 2147483647) (< v_main_~j~0_8 1000000) (<= 1 v_main_~j~0_8) (< (+ v_main_~j~0_8 v_main_~i~0_11) 1000000)) InVars {main_~i~0=v_main_~i~0_11, main_#t~nondet3=|v_main_#t~nondet3_8|, main_~j~0=v_main_~j~0_8} OutVars{main_~i~0=v_main_~i~0_11, main_#t~nondet3=|v_main_#t~nondet3_8|, main_~j~0=v_main_~j~0_8} AuxVars[] AssignedVars[] [2021-05-01 07:23:26,971 WARN L240 tifierPushTermWalker]: treesize reduction 7, result has 92.6 percent of original size [2021-05-01 07:23:26,977 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,993 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,996 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,001 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,004 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,007 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,011 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,014 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,019 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,022 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,028 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,030 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,035 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,036 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 07:23:27,040 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,043 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,045 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,051 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,053 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,058 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,061 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,066 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,068 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,072 WARN L245 tifierPushTermWalker]: treesize reduction 7, result has 92.6 percent of original size 87 [2021-05-01 07:23:27,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:23:27,129 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:27,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,135 INFO L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-05-01 07:23:27,135 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (<= 0 (+ |v_main_#t~nondet3_10| 2147483648)) (< |v_main_#t~nondet3_10| 1000000) (< v_main_~i~0_13 1000000) (<= 1 |v_main_#t~nondet3_10|) (<= |v_main_#t~nondet3_10| 2147483647)) InVars {main_~i~0=v_main_~i~0_13, main_#t~nondet3=|v_main_#t~nondet3_10|} OutVars{main_~i~0=v_main_~i~0_13, main_#t~nondet3=|v_main_#t~nondet3_10|} AuxVars[] AssignedVars[] [2021-05-01 07:23:27,142 WARN L240 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size [2021-05-01 07:23:27,148 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,153 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,157 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,160 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,164 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,167 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,171 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,174 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,179 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,180 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,183 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,189 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,189 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:27,193 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,193 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:27,197 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,199 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,202 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,205 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,208 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,211 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,215 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,217 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,219 WARN L245 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size 80 [2021-05-01 07:23:27,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:23:27,251 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:27,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:27,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:27,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:27,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:27,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:27,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:27,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:27,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:27,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:27,362 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 07:23:27,367 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.2 percent of original size [2021-05-01 07:23:27,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:23:27,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:23:27,478 INFO L142 QuantifierPusher]: treesize reduction 24, result has 50.0 percent of original size [2021-05-01 07:23:27,479 INFO L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-05-01 07:23:27,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:27,515 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-05-01 07:23:27,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:23:27,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:27,532 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:27,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849790182] [2021-05-01 07:23:27,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [849790182] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:27,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:27,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-01 07:23:27,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762610925] [2021-05-01 07:23:27,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 07:23:27,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:27,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 07:23:27,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-05-01 07:23:27,536 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 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 07:23:27,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:27,804 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-05-01 07:23:27,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 07:23:27,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 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 07:23:27,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:27,806 INFO L225 Difference]: With dead ends: 23 [2021-05-01 07:23:27,806 INFO L226 Difference]: Without dead ends: 18 [2021-05-01 07:23:27,806 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 334.0ms TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-05-01 07:23:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-01 07:23:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-05-01 07:23:27,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 3 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 07:23:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-01 07:23:27,814 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2021-05-01 07:23:27,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:27,814 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-01 07:23:27,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 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 07:23:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-01 07:23:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 07:23:27,815 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:27,815 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:27,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 07:23:27,816 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:27,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1594899912, now seen corresponding path program 3 times [2021-05-01 07:23:27,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:27,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428171689] [2021-05-01 07:23:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:27,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:23:27,831 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~j~0_15 1000000) (< (+ v_main_~j~0_15 v_main_~i~0_18) 1000000) (<= |v_main_#t~nondet3_15| 2147483647) (<= 1 v_main_~j~0_15) (<= 0 (+ |v_main_#t~nondet3_15| 2147483648))) InVars {main_~i~0=v_main_~i~0_18, main_#t~nondet3=|v_main_#t~nondet3_15|, main_~j~0=v_main_~j~0_15} OutVars{main_~i~0=v_main_~i~0_18, main_#t~nondet3=|v_main_#t~nondet3_15|, main_~j~0=v_main_~j~0_15} AuxVars[] AssignedVars[] [2021-05-01 07:23:27,841 WARN L240 tifierPushTermWalker]: treesize reduction 7, result has 92.6 percent of original size [2021-05-01 07:23:27,847 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,850 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,855 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,857 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,861 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,863 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,865 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,867 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,869 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,871 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,873 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,876 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,879 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,879 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 07:23:27,882 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,884 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,887 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,889 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,891 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,892 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,894 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,896 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,898 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,900 WARN L245 tifierPushTermWalker]: treesize reduction 7, result has 92.6 percent of original size 87 [2021-05-01 07:23:27,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:23:27,932 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:27,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,943 INFO L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-05-01 07:23:27,943 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~i~0_20 1000000) (< |v_main_#t~nondet3_17| 1000000) (<= |v_main_#t~nondet3_17| 2147483647) (<= 0 (+ |v_main_#t~nondet3_17| 2147483648)) (<= 1 |v_main_#t~nondet3_17|)) InVars {main_~i~0=v_main_~i~0_20, main_#t~nondet3=|v_main_#t~nondet3_17|} OutVars{main_~i~0=v_main_~i~0_20, main_#t~nondet3=|v_main_#t~nondet3_17|} AuxVars[] AssignedVars[] [2021-05-01 07:23:27,951 WARN L240 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size [2021-05-01 07:23:27,957 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,959 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,961 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,963 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,965 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,966 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,969 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,971 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,973 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,974 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,975 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,980 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,981 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:27,983 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,983 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:27,985 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,987 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,988 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,990 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,991 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,993 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,995 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,998 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,000 WARN L245 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size 80 [2021-05-01 07:23:28,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:23:28,031 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:28,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:28,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:28,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:28,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:28,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:28,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:28,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,143 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 07:23:28,146 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.2 percent of original size [2021-05-01 07:23:28,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:28,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:23:28,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:23:28,232 INFO L142 QuantifierPusher]: treesize reduction 24, result has 50.0 percent of original size [2021-05-01 07:23:28,233 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-05-01 07:23:28,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:28,266 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-05-01 07:23:28,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:23:28,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:23:28,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:23:28,306 INFO L142 QuantifierPusher]: treesize reduction 8, result has 84.0 percent of original size [2021-05-01 07:23:28,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 07:23:28,313 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size 35 [2021-05-01 07:23:28,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,334 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:28,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428171689] [2021-05-01 07:23:28,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1428171689] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:28,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:28,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-01 07:23:28,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895808256] [2021-05-01 07:23:28,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-01 07:23:28,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:28,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-01 07:23:28,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-05-01 07:23:28,337 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 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 07:23:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:28,663 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-05-01 07:23:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 07:23:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 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 17 [2021-05-01 07:23:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:28,664 INFO L225 Difference]: With dead ends: 25 [2021-05-01 07:23:28,665 INFO L226 Difference]: Without dead ends: 20 [2021-05-01 07:23:28,665 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 388.7ms TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2021-05-01 07:23:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-01 07:23:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-05-01 07:23:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 3 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 07:23:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-05-01 07:23:28,669 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2021-05-01 07:23:28,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:28,669 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-05-01 07:23:28,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 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 07:23:28,670 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-05-01 07:23:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-01 07:23:28,670 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:28,670 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:28,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 07:23:28,670 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:28,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:28,671 INFO L82 PathProgramCache]: Analyzing trace with hash 495639172, now seen corresponding path program 4 times [2021-05-01 07:23:28,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:28,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129251343] [2021-05-01 07:23:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-05-01 07:23:28,678 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< (+ v_main_~i~0_26 v_main_~j~0_23) 1000000) (<= |v_main_#t~nondet3_23| 2147483647) (<= 1 v_main_~j~0_23) (<= 0 (+ |v_main_#t~nondet3_23| 2147483648)) (< v_main_~j~0_23 1000000)) InVars {main_~i~0=v_main_~i~0_26, main_#t~nondet3=|v_main_#t~nondet3_23|, main_~j~0=v_main_~j~0_23} OutVars{main_~i~0=v_main_~i~0_26, main_#t~nondet3=|v_main_#t~nondet3_23|, main_~j~0=v_main_~j~0_23} AuxVars[] AssignedVars[] [2021-05-01 07:23:28,682 WARN L240 tifierPushTermWalker]: treesize reduction 7, result has 92.6 percent of original size [2021-05-01 07:23:28,684 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,686 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,686 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 07:23:28,689 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,703 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,706 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,707 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,717 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,720 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,723 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,725 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,727 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,729 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,742 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,744 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,746 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,747 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,749 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,751 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,753 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,754 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,756 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,757 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,759 WARN L245 tifierPushTermWalker]: treesize reduction 7, result has 92.6 percent of original size 87 [2021-05-01 07:23:28,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:23:28,782 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:28,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,786 INFO L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-05-01 07:23:28,786 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~i~0_28 1000000) (<= 1 |v_main_#t~nondet3_25|) (<= 0 (+ |v_main_#t~nondet3_25| 2147483648)) (<= |v_main_#t~nondet3_25| 2147483647) (< |v_main_#t~nondet3_25| 1000000)) InVars {main_~i~0=v_main_~i~0_28, main_#t~nondet3=|v_main_#t~nondet3_25|} OutVars{main_~i~0=v_main_~i~0_28, main_#t~nondet3=|v_main_#t~nondet3_25|} AuxVars[] AssignedVars[] [2021-05-01 07:23:28,799 WARN L240 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size [2021-05-01 07:23:28,802 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,802 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,806 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,806 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:28,808 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,808 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:28,810 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,813 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,815 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,816 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,819 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,823 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,825 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,827 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,829 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,831 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,833 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,834 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,836 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,838 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,839 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,841 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,844 WARN L245 tifierPushTermWalker]: treesize reduction 50, result has 61.5 percent of original size 80 [2021-05-01 07:23:28,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:23:28,868 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:28,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:28,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:28,899 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 07:23:28,911 INFO L142 QuantifierPusher]: treesize reduction 6, result has 91.9 percent of original size [2021-05-01 07:23:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:28,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:28,916 INFO L147 QuantifierPusher]: treesize reduction 38, result has 7.3 percent of original size 3 [2021-05-01 07:23:28,923 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-05-01 07:23:28,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:23:28,930 INFO L142 QuantifierPusher]: treesize reduction 8, result has 72.4 percent of original size [2021-05-01 07:23:28,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-05-01 07:23:28,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 07:23:28,951 INFO L142 QuantifierPusher]: treesize reduction 8, result has 75.0 percent of original size [2021-05-01 07:23:28,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:23:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:23:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 07:23:28,984 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-05-01 07:23:28,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 07:23:28,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:23:29,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 07:23:29,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 07:23:29,024 INFO L142 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-05-01 07:23:29,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:23:29,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:23:29,056 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-05-01 07:23:29,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:23:29,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:23:29,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:23:29,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:23:29,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:23:29,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:29,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:29,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:23:29,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 07:23:29,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:23:29,204 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:29,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129251343] [2021-05-01 07:23:29,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [129251343] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:29,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:29,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-01 07:23:29,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664479086] [2021-05-01 07:23:29,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 07:23:29,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:29,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 07:23:29,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-05-01 07:23:29,206 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 16 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 07:23:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:29,613 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-05-01 07:23:29,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-01 07:23:29,614 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 19 [2021-05-01 07:23:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:29,614 INFO L225 Difference]: With dead ends: 20 [2021-05-01 07:23:29,614 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 07:23:29,615 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 551.6ms TimeCoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2021-05-01 07:23:29,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 07:23:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 07:23:29,615 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 07:23:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 07:23:29,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-05-01 07:23:29,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:29,616 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 07:23:29,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 07:23:29,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 07:23:29,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 07:23:29,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 07:23:29,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-01 07:23:29,860 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2021-05-01 07:23:30,015 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2021-05-01 07:23:30,074 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-01 07:23:30,074 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-01 07:23:30,074 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-01 07:23:30,075 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 07:23:30,075 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-01 07:23:30,075 INFO L198 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-05-01 07:23:30,075 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-05-01 07:23:30,075 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2021-05-01 07:23:30,075 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-05-01 07:23:30,075 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2021-05-01 07:23:30,076 INFO L194 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (let ((.cse0 (<= 0 (+ main_~j~0 2147483648))) (.cse1 (< main_~i~0 1000000)) (.cse2 (<= main_~j~0 2147483647))) (or (and .cse0 .cse1 .cse2 (exists ((v_main_~j~0_21 Int)) (and (<= 1 v_main_~j~0_21) (< main_~i~0 (+ v_main_~j~0_21 1000000)) (< v_main_~j~0_21 1000000) (<= (+ v_main_~j~0_21 1) main_~i~0))) (= main_~k~0 2)) (and (exists ((v_main_~j~0_29 Int) (v_main_~j~0_28 Int)) (and (< v_main_~j~0_28 1000000) (< main_~i~0 (+ v_main_~j~0_29 1000000)) (<= 1 v_main_~j~0_28) (< main_~i~0 (+ v_main_~j~0_29 v_main_~j~0_28 1000000)) (<= (+ v_main_~j~0_29 v_main_~j~0_28 1) main_~i~0) (<= 1 v_main_~j~0_29) (< v_main_~j~0_29 1000000))) .cse0 .cse1 .cse2) (and .cse0 (= main_~k~0 0) (= main_~i~0 0) .cse2) (and .cse0 (<= 1 main_~i~0) (= main_~k~0 1) .cse1 .cse2))) [2021-05-01 07:23:30,076 INFO L194 CegarLoopUtils]: At program point L27-2(lines 27 32) the Hoare annotation is: (let ((.cse1 (< main_~i~0 (+ main_~j~0 1000000))) (.cse0 (<= 1 main_~j~0)) (.cse2 (< main_~j~0 1000000))) (or (and .cse0 .cse1 (<= (+ main_~j~0 1) main_~i~0) .cse2 (= main_~k~0 2)) (and .cse0 (exists ((v_main_~j~0_29 Int) (v_main_~j~0_28 Int)) (and (< main_~i~0 (+ v_main_~j~0_29 main_~j~0 1000000)) (< v_main_~j~0_28 1000000) (<= 1 v_main_~j~0_28) (<= (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1) main_~i~0) (<= 1 v_main_~j~0_29) (< main_~i~0 (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1000000)) (< v_main_~j~0_29 1000000))) .cse1 .cse2) (and (= main_~k~0 0) (= main_~i~0 0)) (and .cse0 (= main_~k~0 3) (exists ((v_main_~j~0_21 Int)) (and (<= 1 v_main_~j~0_21) (< v_main_~j~0_21 1000000) (< main_~i~0 (+ main_~j~0 v_main_~j~0_21 1000000)) (<= (+ main_~j~0 v_main_~j~0_21 1) main_~i~0))) .cse1 .cse2) (and .cse0 (= main_~k~0 1) (= main_~i~0 main_~j~0) .cse2))) [2021-05-01 07:23:30,076 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 24 35) the Hoare annotation is: true [2021-05-01 07:23:30,076 INFO L194 CegarLoopUtils]: At program point L27-3(lines 27 32) the Hoare annotation is: (and (<= 1000000 main_~i~0) (exists ((v_main_~j~0_29 Int) (v_main_~j~0_28 Int)) (and (< main_~i~0 (+ v_main_~j~0_29 main_~j~0 1000000)) (< v_main_~j~0_28 1000000) (<= 1 v_main_~j~0_28) (<= (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1) main_~i~0) (<= 1 v_main_~j~0_29) (< main_~i~0 (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1000000)) (< v_main_~j~0_29 1000000))) (< main_~i~0 (+ main_~j~0 1000000)) (< main_~j~0 1000000)) [2021-05-01 07:23:30,076 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 24 35) the Hoare annotation is: true [2021-05-01 07:23:30,076 INFO L201 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-05-01 07:23:30,076 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-05-01 07:23:30,076 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2021-05-01 07:23:30,076 INFO L194 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (or (not (< main_~i~0 (+ main_~j~0 1000000))) (forall ((v_main_~k~0_34 Int)) (not (= (ite (<= v_main_~k~0_34 1000000) 1 0) |__VERIFIER_assert_#in~cond|))) (forall ((v_main_~j~0_29 Int) (v_main_~j~0_28 Int)) (or (not (< main_~i~0 (+ v_main_~j~0_29 main_~j~0 1000000))) (not (< v_main_~j~0_28 1000000)) (not (<= (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1) main_~i~0)) (not (<= 1 v_main_~j~0_29)) (not (<= 1 v_main_~j~0_28)) (not (< v_main_~j~0_29 1000000)) (not (< main_~i~0 (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1000000))))) (not (<= 1000000 main_~i~0)) (and (= __VERIFIER_assert_~cond 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (not (< main_~j~0 1000000))) [2021-05-01 07:23:30,077 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (or (not (< main_~i~0 (+ main_~j~0 1000000))) (forall ((v_main_~k~0_34 Int)) (not (= (ite (<= v_main_~k~0_34 1000000) 1 0) |__VERIFIER_assert_#in~cond|))) (forall ((v_main_~j~0_29 Int) (v_main_~j~0_28 Int)) (or (not (< main_~i~0 (+ v_main_~j~0_29 main_~j~0 1000000))) (not (< v_main_~j~0_28 1000000)) (not (<= (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1) main_~i~0)) (not (<= 1 v_main_~j~0_29)) (not (<= 1 v_main_~j~0_28)) (not (< v_main_~j~0_29 1000000)) (not (< main_~i~0 (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1000000))))) (not (<= 1000000 main_~i~0)) (not (< main_~j~0 1000000))) [2021-05-01 07:23:30,077 INFO L194 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (not (< main_~i~0 (+ main_~j~0 1000000))) (forall ((v_main_~k~0_34 Int)) (not (= (ite (<= v_main_~k~0_34 1000000) 1 0) |__VERIFIER_assert_#in~cond|))) (forall ((v_main_~j~0_29 Int) (v_main_~j~0_28 Int)) (or (not (< main_~i~0 (+ v_main_~j~0_29 main_~j~0 1000000))) (not (< v_main_~j~0_28 1000000)) (not (<= (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1) main_~i~0)) (not (<= 1 v_main_~j~0_29)) (not (<= 1 v_main_~j~0_28)) (not (< v_main_~j~0_29 1000000)) (not (< main_~i~0 (+ v_main_~j~0_29 v_main_~j~0_28 main_~j~0 1000000))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (not (<= 1000000 main_~i~0)) (not (< main_~j~0 1000000))) [2021-05-01 07:23:30,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 07:23:30 BoogieIcfgContainer [2021-05-01 07:23:30,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 07:23:30,099 INFO L168 Benchmark]: Toolchain (without parser) took 4825.13 ms. Allocated memory was 183.5 MB in the beginning and 264.2 MB in the end (delta: 80.7 MB). Free memory was 150.3 MB in the beginning and 127.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 103.7 MB. Max. memory is 8.0 GB. [2021-05-01 07:23:30,099 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 183.5 MB. Free memory is still 166.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 07:23:30,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.32 ms. Allocated memory is still 183.5 MB. Free memory was 150.1 MB in the beginning and 140.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 07:23:30,099 INFO L168 Benchmark]: Boogie Preprocessor took 49.04 ms. Allocated memory is still 183.5 MB. Free memory was 140.1 MB in the beginning and 168.0 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. [2021-05-01 07:23:30,099 INFO L168 Benchmark]: RCFGBuilder took 342.68 ms. Allocated memory is still 183.5 MB. Free memory was 168.0 MB in the beginning and 153.5 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-01 07:23:30,099 INFO L168 Benchmark]: TraceAbstraction took 4237.95 ms. Allocated memory was 183.5 MB in the beginning and 264.2 MB in the end (delta: 80.7 MB). Free memory was 153.5 MB in the beginning and 127.8 MB in the end (delta: 25.7 MB). Peak memory consumption was 107.5 MB. Max. memory is 8.0 GB. [2021-05-01 07:23:30,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 183.5 MB. Free memory is still 166.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 186.32 ms. Allocated memory is still 183.5 MB. Free memory was 150.1 MB in the beginning and 140.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.04 ms. Allocated memory is still 183.5 MB. Free memory was 140.1 MB in the beginning and 168.0 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 342.68 ms. Allocated memory is still 183.5 MB. Free memory was 168.0 MB in the beginning and 153.5 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4237.95 ms. Allocated memory was 183.5 MB in the beginning and 264.2 MB in the end (delta: 80.7 MB). Free memory was 153.5 MB in the beginning and 127.8 MB in the end (delta: 25.7 MB). Peak memory consumption was 107.5 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_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,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, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3709.5ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 13.1ms, AutomataDifference: 1279.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 456.7ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 71 SDslu, 136 SDs, 0 SdLazy, 324 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 219.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1488.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 52.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 20 LocationsWithAnnotation, 44 PreInvPairs, 67 NumberOfFragments, 524 HoareAnnotationTreeSize, 44 FomulaSimplifications, 280 FormulaSimplificationTreeSizeReduction, 75.4ms HoareSimplificationTime, 20 FomulaSimplificationsInter, 852 FormulaSimplificationTreeSizeReductionInter, 369.1ms 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: 27]: Loop Invariant [2021-05-01 07:23:30,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_28,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_29,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] [2021-05-01 07:23:30,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~j~0_21,QUANTIFIED] Derived loop invariant: (((((((1 <= j && i < j + 1000000) && j + 1 <= i) && j < 1000000) && k == 2) || (((1 <= j && (\exists v_main_~j~0_29 : int, v_main_~j~0_28 : int :: (((((i < v_main_~j~0_29 + j + 1000000 && v_main_~j~0_28 < 1000000) && 1 <= v_main_~j~0_28) && v_main_~j~0_29 + v_main_~j~0_28 + j + 1 <= i) && 1 <= v_main_~j~0_29) && i < v_main_~j~0_29 + v_main_~j~0_28 + j + 1000000) && v_main_~j~0_29 < 1000000)) && i < j + 1000000) && j < 1000000)) || (k == 0 && i == 0)) || ((((1 <= j && k == 3) && (\exists v_main_~j~0_21 : int :: ((1 <= v_main_~j~0_21 && v_main_~j~0_21 < 1000000) && i < j + v_main_~j~0_21 + 1000000) && j + v_main_~j~0_21 + 1 <= i)) && i < j + 1000000) && j < 1000000)) || (((1 <= j && k == 1) && i == j) && j < 1000000) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! Received shutdown request...