/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:47:27,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:47:27,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:47:27,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 06:47:27,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:47:27,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:47:27,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:47:27,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:47:27,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:47:27,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:47:27,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:47:27,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:47:27,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:47:27,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:47:27,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:47:27,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:47:27,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:47:27,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:47:27,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:47:27,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:47:27,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:47:27,847 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:47:27,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:47:27,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:47:27,850 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:47:27,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:47:27,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:47:27,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:47:27,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:47:27,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:47:27,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:47:27,852 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:47:27,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:47:27,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:47:27,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:47:27,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:47:27,854 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:47:27,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:47:27,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:47:27,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:47:27,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:47:27,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:47:27,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:47:27,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:47:28,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:47:28,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:47:28,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:47:28,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:47:28,401 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:47:28,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-11-07 06:47:28,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6fdb8cd/1878542b258b4cb5b987c767ae1dc5a9/FLAG5042e733c [2020-11-07 06:47:29,255 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:47:29,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-11-07 06:47:29,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6fdb8cd/1878542b258b4cb5b987c767ae1dc5a9/FLAG5042e733c [2020-11-07 06:47:29,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6fdb8cd/1878542b258b4cb5b987c767ae1dc5a9 [2020-11-07 06:47:29,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:47:29,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:47:29,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:47:29,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:47:29,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:47:29,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:47:29" (1/1) ... [2020-11-07 06:47:29,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d59209c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:29, skipping insertion in model container [2020-11-07 06:47:29,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:47:29" (1/1) ... [2020-11-07 06:47:29,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:47:29,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:47:30,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:47:30,026 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:47:30,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:47:30,073 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:47:30,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30 WrapperNode [2020-11-07 06:47:30,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:47:30,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:47:30,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:47:30,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:47:30,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (1/1) ... [2020-11-07 06:47:30,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:47:30,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:47:30,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:47:30,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:47:30,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (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 [2020-11-07 06:47:30,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:47:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:47:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:47:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:47:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:47:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:47:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:47:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:47:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:47:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:47:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:47:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:47:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:47:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:47:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:47:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:47:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:47:30,635 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:47:30,635 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 06:47:30,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:47:30 BoogieIcfgContainer [2020-11-07 06:47:30,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:47:30,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:47:30,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:47:30,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:47:30,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:47:29" (1/3) ... [2020-11-07 06:47:30,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627e9391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:47:30, skipping insertion in model container [2020-11-07 06:47:30,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:47:30" (2/3) ... [2020-11-07 06:47:30,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627e9391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:47:30, skipping insertion in model container [2020-11-07 06:47:30,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:47:30" (3/3) ... [2020-11-07 06:47:30,652 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2020-11-07 06:47:30,679 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:47:30,685 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:47:30,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:47:30,750 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:47:30,751 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:47:30,751 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:47:30,751 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:47:30,751 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:47:30,752 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:47:30,752 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:47:30,755 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:47:30,801 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-11-07 06:47:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-07 06:47:30,816 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:47:30,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:47:30,818 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:47:30,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:47:30,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1170389226, now seen corresponding path program 1 times [2020-11-07 06:47:30,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:47:30,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106514063] [2020-11-07 06:47:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:47:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:47:31,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:47:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:47:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:47:31,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106514063] [2020-11-07 06:47:31,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:47:31,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 06:47:31,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830270173] [2020-11-07 06:47:31,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 06:47:31,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:47:31,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 06:47:31,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 06:47:31,475 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2020-11-07 06:47:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:47:31,892 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2020-11-07 06:47:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 06:47:31,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-11-07 06:47:31,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:47:31,905 INFO L225 Difference]: With dead ends: 95 [2020-11-07 06:47:31,905 INFO L226 Difference]: Without dead ends: 65 [2020-11-07 06:47:31,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:47:31,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-07 06:47:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 50. [2020-11-07 06:47:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-07 06:47:31,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2020-11-07 06:47:31,979 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 29 [2020-11-07 06:47:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:47:31,980 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2020-11-07 06:47:31,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 06:47:31,980 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2020-11-07 06:47:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-07 06:47:31,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:47:31,982 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:47:31,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:47:31,983 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:47:31,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:47:31,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1432420508, now seen corresponding path program 1 times [2020-11-07 06:47:31,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:47:31,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286003763] [2020-11-07 06:47:31,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:47:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:47:32,380 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2020-11-07 06:47:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:47:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:47:32,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:47:32,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286003763] [2020-11-07 06:47:32,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:47:32,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 06:47:32,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783496440] [2020-11-07 06:47:32,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:47:32,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:47:32,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:47:32,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:47:32,538 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 7 states. [2020-11-07 06:47:43,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:47:43,724 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-11-07 06:47:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 06:47:43,726 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-11-07 06:47:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:47:43,728 INFO L225 Difference]: With dead ends: 104 [2020-11-07 06:47:43,728 INFO L226 Difference]: Without dead ends: 64 [2020-11-07 06:47:43,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:47:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-07 06:47:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2020-11-07 06:47:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-07 06:47:43,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2020-11-07 06:47:43,755 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 37 [2020-11-07 06:47:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:47:43,755 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2020-11-07 06:47:43,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:47:43,756 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2020-11-07 06:47:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-07 06:47:43,757 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:47:43,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:47:43,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:47:43,758 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:47:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:47:43,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1008398220, now seen corresponding path program 1 times [2020-11-07 06:47:43,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:47:43,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68863150] [2020-11-07 06:47:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:47:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:47:44,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:47:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:47:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:47:44,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68863150] [2020-11-07 06:47:44,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:47:44,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 06:47:44,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966483856] [2020-11-07 06:47:44,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:47:44,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:47:44,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:47:44,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:47:44,247 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 7 states. [2020-11-07 06:47:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:47:53,379 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-11-07 06:47:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 06:47:53,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-11-07 06:47:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:47:53,381 INFO L225 Difference]: With dead ends: 104 [2020-11-07 06:47:53,381 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:47:53,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:47:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:47:53,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:47:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:47:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:47:53,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-11-07 06:47:53,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:47:53,384 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:47:53,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:47:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:47:53,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:47:53,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:47:53,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:47:53,853 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-11-07 06:47:54,016 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-11-07 06:47:54,276 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-11-07 06:47:54,383 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-11-07 06:47:54,485 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-11-07 06:47:55,152 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,152 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,152 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,153 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,153 INFO L269 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,155 INFO L269 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,155 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,156 INFO L269 CegarLoopResult]: At program point L4-5(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,156 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,156 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,158 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~__return_107~0 |old(~__return_107~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 06:47:55,159 INFO L269 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-11-07 06:47:55,159 INFO L269 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,159 INFO L269 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,159 INFO L269 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-11-07 06:47:55,159 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,159 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,160 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,160 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,160 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:47:55,161 INFO L262 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,162 INFO L262 CegarLoopResult]: At program point L27(lines 27 49) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,162 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 9 78) the Hoare annotation is: true [2020-11-07 06:47:55,162 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2020-11-07 06:47:55,162 INFO L262 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2020-11-07 06:47:55,163 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2020-11-07 06:47:55,163 INFO L262 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,163 INFO L269 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: true [2020-11-07 06:47:55,163 INFO L262 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,163 INFO L262 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,164 INFO L262 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,167 INFO L262 CegarLoopResult]: At program point L61(lines 61 70) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_107~0)| ~__return_107~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,167 INFO L262 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,168 INFO L262 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse3 main_~main__x~0) 3))) (let ((.cse2 (div (+ .cse3 (* .cse1 (- 3)) main_~main__x~0) 4294967296))) (and (= |old(~__return_107~0)| ~__return_107~0) (<= (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 .cse2) 1) main_~main__x~0) (<= (* 1431655765 main_~main__x~0) (+ (* 6148914689804861440 .cse0) (* 4294967296 .cse1) (* 6148914689804861440 .cse2) 1431655765))))))) [2020-11-07 06:47:55,170 INFO L262 CegarLoopResult]: At program point L16(lines 16 77) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2020-11-07 06:47:55,170 INFO L262 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,170 INFO L262 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,170 INFO L262 CegarLoopResult]: At program point L37(lines 37 48) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,171 INFO L262 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 6148914689804861440 .cse0) (* 4294967295 .cse1) (* 6148914688373205674 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)) 2863311530)))) (* 1431655765 main_~main__x~0))) [2020-11-07 06:47:55,171 INFO L262 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,171 INFO L262 CegarLoopResult]: At program point L54(lines 54 76) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2020-11-07 06:47:55,172 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,173 INFO L262 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,174 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 9 78) the Hoare annotation is: true [2020-11-07 06:47:55,177 INFO L262 CegarLoopResult]: At program point L75(line 75) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,178 INFO L262 CegarLoopResult]: At program point L63(line 63) the Hoare annotation is: false [2020-11-07 06:47:55,178 INFO L262 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,178 INFO L262 CegarLoopResult]: At program point L63-1(line 63) the Hoare annotation is: false [2020-11-07 06:47:55,178 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 9 78) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,179 INFO L262 CegarLoopResult]: At program point L59(line 59) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_107~0)| ~__return_107~0) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))) [2020-11-07 06:47:55,182 INFO L262 CegarLoopResult]: At program point L18(lines 18 50) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,182 INFO L262 CegarLoopResult]: At program point L47(lines 10 78) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2020-11-07 06:47:55,182 INFO L262 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,182 INFO L262 CegarLoopResult]: At program point L68(line 68) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,183 INFO L262 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2020-11-07 06:47:55,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:47:55 BoogieIcfgContainer [2020-11-07 06:47:55,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:47:55,238 INFO L168 Benchmark]: Toolchain (without parser) took 25624.59 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 129.9 MB in the beginning and 147.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 102.6 MB. Max. memory is 8.0 GB. [2020-11-07 06:47:55,239 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 153.1 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:47:55,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.23 ms. Allocated memory is still 153.1 MB. Free memory was 129.2 MB in the beginning and 119.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:47:55,246 INFO L168 Benchmark]: Boogie Preprocessor took 49.03 ms. Allocated memory is still 153.1 MB. Free memory was 119.9 MB in the beginning and 118.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:47:55,250 INFO L168 Benchmark]: RCFGBuilder took 514.01 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 135.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. [2020-11-07 06:47:55,254 INFO L168 Benchmark]: TraceAbstraction took 24587.82 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 135.4 MB in the beginning and 147.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 106.3 MB. Max. memory is 8.0 GB. [2020-11-07 06:47:55,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 153.1 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 454.23 ms. Allocated memory is still 153.1 MB. Free memory was 129.2 MB in the beginning and 119.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.03 ms. Allocated memory is still 153.1 MB. Free memory was 119.9 MB in the beginning and 118.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 514.01 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 135.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24587.82 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 135.4 MB in the beginning and 147.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 106.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (\old(__return_107) == __return_107 && main__y == 1) || (\old(__return_107) == __return_107 && main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296)) - ProcedureContractResult [Line: 4]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 9]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 20.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 176 SDslu, 144 SDs, 0 SdLazy, 407 SolverSat, 15 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 19.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 63 PreInvPairs, 115 NumberOfFragments, 893 HoareAnnotationTreeSize, 63 FomulaSimplifications, 5340 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 55 FomulaSimplificationsInter, 1203 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 39045 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...