/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 02:09:56,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 02:09:56,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 02:09:56,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 02:09:56,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 02:09:56,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 02:09:56,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 02:09:56,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 02:09:56,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 02:09:56,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 02:09:56,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 02:09:56,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 02:09:56,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 02:09:56,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 02:09:56,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 02:09:56,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 02:09:56,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 02:09:56,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 02:09:56,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 02:09:56,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 02:09:56,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 02:09:56,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 02:09:56,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 02:09:56,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 02:09:56,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 02:09:56,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 02:09:56,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 02:09:56,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 02:09:56,641 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 02:09:56,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 02:09:56,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 02:09:56,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 02:09:56,687 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 02:09:56,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 02:09:56,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 02:09:56,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 02:09:56,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 02:09:56,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 02:09:56,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 02:09:56,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 02:09:56,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 02:09:56,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 02:09:56,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 02:09:56,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 02:09:56,692 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 02:09:56,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 02:09:56,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 02:09:56,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 02:09:56,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 02:09:56,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 02:09:56,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 02:09:56,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 02:09:57,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 02:09:57,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 02:09:57,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 02:09:57,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 02:09:57,350 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 02:09:57,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-11-07 02:09:57,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538717583/0859c68822e64ceea0ca284e9585f057/FLAG2c1ea662a [2020-11-07 02:09:58,437 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 02:09:58,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-11-07 02:09:58,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538717583/0859c68822e64ceea0ca284e9585f057/FLAG2c1ea662a [2020-11-07 02:09:58,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538717583/0859c68822e64ceea0ca284e9585f057 [2020-11-07 02:09:58,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 02:09:58,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 02:09:58,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 02:09:58,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 02:09:58,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 02:09:58,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:58" (1/1) ... [2020-11-07 02:09:58,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b19597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:58, skipping insertion in model container [2020-11-07 02:09:58,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:58" (1/1) ... [2020-11-07 02:09:58,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 02:09:58,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 02:09:59,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:09:59,038 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 02:09:59,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 02:09:59,132 INFO L208 MainTranslator]: Completed translation [2020-11-07 02:09:59,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59 WrapperNode [2020-11-07 02:09:59,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 02:09:59,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 02:09:59,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 02:09:59,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 02:09:59,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (1/1) ... [2020-11-07 02:09:59,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 02:09:59,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 02:09:59,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 02:09:59,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 02:09:59,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (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 02:09:59,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 02:09:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 02:09:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 02:09:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 02:09:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 02:09:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 02:09:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 02:09:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 02:09:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 02:09:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 02:09:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 02:09:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 02:09:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 02:09:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 02:09:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 02:09:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 02:09:59,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 02:10:00,166 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 02:10:00,166 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 02:10:00,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:00 BoogieIcfgContainer [2020-11-07 02:10:00,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 02:10:00,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 02:10:00,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 02:10:00,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 02:10:00,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:09:58" (1/3) ... [2020-11-07 02:10:00,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64169c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:00, skipping insertion in model container [2020-11-07 02:10:00,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:59" (2/3) ... [2020-11-07 02:10:00,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64169c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:00, skipping insertion in model container [2020-11-07 02:10:00,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:00" (3/3) ... [2020-11-07 02:10:00,187 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2020-11-07 02:10:00,213 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 02:10:00,219 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 02:10:00,265 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 02:10:00,332 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 02:10:00,333 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 02:10:00,336 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 02:10:00,337 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 02:10:00,343 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 02:10:00,343 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 02:10:00,343 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 02:10:00,343 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 02:10:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2020-11-07 02:10:00,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-07 02:10:00,431 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:10:00,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:10:00,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:10:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:10:00,462 INFO L82 PathProgramCache]: Analyzing trace with hash 730587064, now seen corresponding path program 1 times [2020-11-07 02:10:00,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:10:00,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978943521] [2020-11-07 02:10:00,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:10:00,652 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:10:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:10:01,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:10:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:10:01,785 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 02:10:01,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978943521] [2020-11-07 02:10:01,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:10:01,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 02:10:01,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904701347] [2020-11-07 02:10:01,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 02:10:01,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:10:01,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 02:10:01,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 02:10:01,830 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 7 states. [2020-11-07 02:10:02,272 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 02:10:09,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:10:09,650 INFO L93 Difference]: Finished difference Result 241 states and 270 transitions. [2020-11-07 02:10:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 02:10:09,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-11-07 02:10:09,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:10:09,705 INFO L225 Difference]: With dead ends: 241 [2020-11-07 02:10:09,705 INFO L226 Difference]: Without dead ends: 134 [2020-11-07 02:10:09,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-07 02:10:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-07 02:10:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 103. [2020-11-07 02:10:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-07 02:10:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 109 transitions. [2020-11-07 02:10:09,890 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 109 transitions. Word has length 48 [2020-11-07 02:10:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:10:09,894 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 109 transitions. [2020-11-07 02:10:09,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 02:10:09,895 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 109 transitions. [2020-11-07 02:10:09,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-07 02:10:09,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 02:10:09,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 02:10:09,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 02:10:09,907 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 02:10:09,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 02:10:09,910 INFO L82 PathProgramCache]: Analyzing trace with hash -199684359, now seen corresponding path program 1 times [2020-11-07 02:10:09,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 02:10:09,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65496726] [2020-11-07 02:10:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 02:10:09,932 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 02:10:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:10:10,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 02:10:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 02:10:10,585 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 02:10:10,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65496726] [2020-11-07 02:10:10,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 02:10:10,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 02:10:10,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813104053] [2020-11-07 02:10:10,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 02:10:10,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 02:10:10,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 02:10:10,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 02:10:10,596 INFO L87 Difference]: Start difference. First operand 103 states and 109 transitions. Second operand 7 states. [2020-11-07 02:10:13,191 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-07 02:10:20,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 02:10:20,165 INFO L93 Difference]: Finished difference Result 203 states and 220 transitions. [2020-11-07 02:10:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 02:10:20,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-11-07 02:10:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 02:10:20,171 INFO L225 Difference]: With dead ends: 203 [2020-11-07 02:10:20,172 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 02:10:20,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-07 02:10:20,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 02:10:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 02:10:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 02:10:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 02:10:20,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-11-07 02:10:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 02:10:20,182 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 02:10:20,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 02:10:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 02:10:20,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 02:10:20,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 02:10:20,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 02:10:20,874 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,875 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,875 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,875 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,875 INFO L269 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,875 INFO L269 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,875 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,876 INFO L269 CegarLoopResult]: At program point L4-5(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,876 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,876 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,876 INFO L269 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-11-07 02:10:20,877 INFO L269 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-11-07 02:10:20,877 INFO L269 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-11-07 02:10:20,877 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 02:10:20,877 INFO L269 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-11-07 02:10:20,878 INFO L269 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-11-07 02:10:20,878 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= ~__return_121~0 |old(~__return_121~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__tmp_112_0~0 |old(~__tmp_112_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|) (= |old(#valid)| |#valid|) (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-11-07 02:10:20,878 INFO L269 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-11-07 02:10:20,878 INFO L269 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-11-07 02:10:20,879 INFO L269 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,879 INFO L269 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,879 INFO L269 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-11-07 02:10:20,879 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,879 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,880 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,880 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,880 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 02:10:20,880 INFO L269 CegarLoopResult]: At program point L126(line 126) the Hoare annotation is: true [2020-11-07 02:10:20,880 INFO L262 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (<= 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 02:10:20,881 INFO L269 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: true [2020-11-07 02:10:20,881 INFO L262 CegarLoopResult]: At program point L27(line 27) 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 (<= (+ (* 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 02:10:20,881 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 16 151) the Hoare annotation is: true [2020-11-07 02:10:20,881 INFO L262 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: false [2020-11-07 02:10:20,882 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= |old(~__tmp_112_0~0)| ~__tmp_112_0~0) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= |old(~__return_121~0)| ~__return_121~0) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|)) [2020-11-07 02:10:20,882 INFO L269 CegarLoopResult]: At program point L77(line 77) the Hoare annotation is: true [2020-11-07 02:10:20,882 INFO L262 CegarLoopResult]: At program point L44(lines 26 114) the Hoare annotation is: (<= 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 02:10:20,882 INFO L262 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (<= 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 02:10:20,883 INFO L262 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (<= 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 02:10:20,883 INFO L262 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (<= 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 02:10:20,883 INFO L269 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: true [2020-11-07 02:10:20,883 INFO L262 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (<= 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 02:10:20,883 INFO L269 CegarLoopResult]: At program point L127-1(line 127) the Hoare annotation is: true [2020-11-07 02:10:20,884 INFO L269 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: true [2020-11-07 02:10:20,884 INFO L269 CegarLoopResult]: At program point L127-2(line 127) the Hoare annotation is: true [2020-11-07 02:10:20,884 INFO L262 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (<= 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 02:10:20,884 INFO L269 CegarLoopResult]: At program point L61-1(line 61) the Hoare annotation is: true [2020-11-07 02:10:20,885 INFO L269 CegarLoopResult]: At program point L61-2(line 61) the Hoare annotation is: true [2020-11-07 02:10:20,885 INFO L262 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: (<= (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 02:10:20,885 INFO L269 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: true [2020-11-07 02:10:20,886 INFO L269 CegarLoopResult]: At program point L78(line 78) the Hoare annotation is: true [2020-11-07 02:10:20,886 INFO L269 CegarLoopResult]: At program point L70(line 70) the Hoare annotation is: true [2020-11-07 02:10:20,886 INFO L262 CegarLoopResult]: At program point L37(lines 37 113) the Hoare annotation is: (<= 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 02:10:20,886 INFO L269 CegarLoopResult]: At program point L128(lines 128 143) the Hoare annotation is: true [2020-11-07 02:10:20,887 INFO L262 CegarLoopResult]: At program point L95(line 95) the Hoare annotation is: (and (not (= main_~__tmp_1~0 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 02:10:20,887 INFO L269 CegarLoopResult]: At program point L62(lines 62 84) the Hoare annotation is: true [2020-11-07 02:10:20,887 INFO L262 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= 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 02:10:20,887 INFO L262 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: (<= 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 02:10:20,887 INFO L269 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: true [2020-11-07 02:10:20,888 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 16 151) the Hoare annotation is: true [2020-11-07 02:10:20,888 INFO L262 CegarLoopResult]: At program point L104(line 104) the Hoare annotation is: (not (= main_~__VERIFIER_assert__cond~0 0)) [2020-11-07 02:10:20,888 INFO L262 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (and (not (= main_~__tmp_1~0 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 02:10:20,888 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 16 151) the Hoare annotation is: (and (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= |old(~__tmp_112_0~0)| ~__tmp_112_0~0) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= |old(~__return_121~0)| ~__return_121~0) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|)) [2020-11-07 02:10:20,889 INFO L262 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: (<= 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 02:10:20,889 INFO L262 CegarLoopResult]: At program point L55(line 55) the Hoare annotation is: (<= 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 02:10:20,889 INFO L269 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-11-07 02:10:20,889 INFO L269 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-11-07 02:10:20,889 INFO L269 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: true [2020-11-07 02:10:20,890 INFO L269 CegarLoopResult]: At program point L138(line 138) the Hoare annotation is: true [2020-11-07 02:10:20,890 INFO L262 CegarLoopResult]: At program point L105(line 105) the Hoare annotation is: (not (= main_~__VERIFIER_assert__cond~0 0)) [2020-11-07 02:10:20,890 INFO L262 CegarLoopResult]: At program point L39(lines 39 86) the Hoare annotation is: (<= 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 02:10:20,890 INFO L269 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: true [2020-11-07 02:10:20,890 INFO L262 CegarLoopResult]: At program point L97(lines 97 106) the Hoare annotation is: (and (not (= main_~__tmp_1~0 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 02:10:20,891 INFO L269 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: true [2020-11-07 02:10:20,891 INFO L262 CegarLoopResult]: At program point L122(lines 25 145) the Hoare annotation is: (<= 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 02:10:20,891 INFO L262 CegarLoopResult]: At program point L56(lines 26 114) the Hoare annotation is: (<= 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 02:10:20,891 INFO L269 CegarLoopResult]: At program point L23(lines 23 150) the Hoare annotation is: true [2020-11-07 02:10:20,892 INFO L262 CegarLoopResult]: At program point L48(lines 48 85) the Hoare annotation is: (<= 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 02:10:20,892 INFO L269 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: true [2020-11-07 02:10:20,892 INFO L269 CegarLoopResult]: At program point L131(line 131) the Hoare annotation is: true [2020-11-07 02:10:20,892 INFO L269 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: true [2020-11-07 02:10:20,893 INFO L262 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (<= 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 02:10:20,893 INFO L262 CegarLoopResult]: At program point L90(lines 90 112) the Hoare annotation is: (<= 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 02:10:20,893 INFO L269 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: true [2020-11-07 02:10:20,893 INFO L269 CegarLoopResult]: At program point L140(line 140) the Hoare annotation is: true [2020-11-07 02:10:20,893 INFO L262 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: false [2020-11-07 02:10:20,894 INFO L269 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: true [2020-11-07 02:10:20,894 INFO L262 CegarLoopResult]: At program point L99(line 99) the Hoare annotation is: false [2020-11-07 02:10:20,894 INFO L269 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: true [2020-11-07 02:10:20,894 INFO L262 CegarLoopResult]: At program point L99-1(line 99) the Hoare annotation is: false [2020-11-07 02:10:20,894 INFO L269 CegarLoopResult]: At program point L25(lines 25 145) the Hoare annotation is: true [2020-11-07 02:10:20,895 INFO L269 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: true [2020-11-07 02:10:20,895 INFO L269 CegarLoopResult]: At program point L83(lines 17 151) the Hoare annotation is: true [2020-11-07 02:10:20,895 INFO L262 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: false [2020-11-07 02:10:20,895 INFO L269 CegarLoopResult]: At program point L141(line 141) the Hoare annotation is: true [2020-11-07 02:10:20,895 INFO L262 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: false [2020-11-07 02:10:20,896 INFO L269 CegarLoopResult]: At program point L133(line 133) the Hoare annotation is: true [2020-11-07 02:10:20,896 INFO L269 CegarLoopResult]: At program point L67(line 67) the Hoare annotation is: true [2020-11-07 02:10:20,896 INFO L269 CegarLoopResult]: At program point L117(lines 117 144) the Hoare annotation is: true [2020-11-07 02:10:20,896 INFO L262 CegarLoopResult]: At program point L51(line 51) the Hoare annotation is: false [2020-11-07 02:10:20,896 INFO L269 CegarLoopResult]: At program point L142(lines 25 145) the Hoare annotation is: true [2020-11-07 02:10:20,896 INFO L269 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: true [2020-11-07 02:10:20,897 INFO L262 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: false [2020-11-07 02:10:20,897 INFO L269 CegarLoopResult]: At program point L134(lines 25 145) the Hoare annotation is: true [2020-11-07 02:10:20,897 INFO L262 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (<= 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 02:10:20,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:10:20 BoogieIcfgContainer [2020-11-07 02:10:20,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 02:10:20,936 INFO L168 Benchmark]: Toolchain (without parser) took 22236.73 ms. Allocated memory was 156.2 MB in the beginning and 201.3 MB in the end (delta: 45.1 MB). Free memory was 135.3 MB in the beginning and 108.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 72.0 MB. Max. memory is 8.0 GB. [2020-11-07 02:10:20,937 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 156.2 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 02:10:20,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.98 ms. Allocated memory is still 156.2 MB. Free memory was 134.8 MB in the beginning and 124.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 02:10:20,939 INFO L168 Benchmark]: Boogie Preprocessor took 83.68 ms. Allocated memory is still 156.2 MB. Free memory was 124.3 MB in the beginning and 140.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 02:10:20,941 INFO L168 Benchmark]: RCFGBuilder took 936.44 ms. Allocated memory is still 156.2 MB. Free memory was 140.4 MB in the beginning and 117.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-07 02:10:20,942 INFO L168 Benchmark]: TraceAbstraction took 20758.22 ms. Allocated memory was 156.2 MB in the beginning and 201.3 MB in the end (delta: 45.1 MB). Free memory was 116.9 MB in the beginning and 108.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. [2020-11-07 02:10:20,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 156.2 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 427.98 ms. Allocated memory is still 156.2 MB. Free memory was 134.8 MB in the beginning and 124.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 83.68 ms. Allocated memory is still 156.2 MB. Free memory was 124.3 MB in the beginning and 140.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 936.44 ms. Allocated memory is still 156.2 MB. Free memory was 140.4 MB in the beginning and 117.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20758.22 ms. Allocated memory was 156.2 MB in the beginning and 201.3 MB in the end (delta: 45.1 MB). Free memory was 116.9 MB in the beginning and 108.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 54.3 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: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 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) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 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) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 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: 16]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 17.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 200 SDtfs, 95 SDslu, 534 SDs, 0 SdLazy, 511 SolverSat, 11 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 104 LocationsWithAnnotation, 108 PreInvPairs, 220 NumberOfFragments, 1243 HoareAnnotationTreeSize, 108 FomulaSimplifications, 1438 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 104 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.4s 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...