/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:41:15,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:41:15,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:41:15,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:41:15,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:41:15,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:41:15,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:41:15,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:41:15,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:41:15,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:41:15,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:41:15,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:41:15,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:41:15,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:41:15,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:41:15,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:41:15,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:41:15,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:41:15,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:41:15,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:41:15,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:41:15,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:41:15,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:41:15,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:41:15,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:41:15,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:41:15,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:41:15,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:41:15,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:41:15,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:41:15,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:41:15,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:41:15,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:41:15,589 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:41:15,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:41:15,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:41:15,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:41:15,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:41:15,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:41:15,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:41:15,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:41:15,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:41:15,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:41:15,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:41:15,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:41:15,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:41:15,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:41:15,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:41:15,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:41:15,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:41:15,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:41:15,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:41:15,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:41:15,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:41:15,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:41:15,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:41:15,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:41:15,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:41:15,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:41:15,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:41:15,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:41:16,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:41:16,002 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:41:16,002 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:41:16,003 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-07-21 11:41:16,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36ac401cb/d1a4a4399b744e3c844f64158fce3cd5/FLAG9197d07eb [2020-07-21 11:41:16,476 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:41:16,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-07-21 11:41:16,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36ac401cb/d1a4a4399b744e3c844f64158fce3cd5/FLAG9197d07eb [2020-07-21 11:41:16,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36ac401cb/d1a4a4399b744e3c844f64158fce3cd5 [2020-07-21 11:41:16,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:41:16,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:41:16,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:41:16,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:41:16,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:41:16,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:16" (1/1) ... [2020-07-21 11:41:16,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798c2c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:16, skipping insertion in model container [2020-07-21 11:41:16,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:16" (1/1) ... [2020-07-21 11:41:16,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:41:16,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:41:17,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:41:17,162 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:41:17,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:41:17,202 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:41:17,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17 WrapperNode [2020-07-21 11:41:17,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:41:17,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:41:17,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:41:17,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:41:17,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (1/1) ... [2020-07-21 11:41:17,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:41:17,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:41:17,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:41:17,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:41:17,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (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 [2020-07-21 11:41:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:41:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:41:17,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 11:41:17,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:41:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:41:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 11:41:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:41:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:41:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:41:17,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:41:17,588 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:41:17,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:41:17 BoogieIcfgContainer [2020-07-21 11:41:17,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:41:17,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:41:17,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:41:17,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:41:17,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:41:16" (1/3) ... [2020-07-21 11:41:17,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da81add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:41:17, skipping insertion in model container [2020-07-21 11:41:17,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:17" (2/3) ... [2020-07-21 11:41:17,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da81add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:41:17, skipping insertion in model container [2020-07-21 11:41:17,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:41:17" (3/3) ... [2020-07-21 11:41:17,600 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2020-07-21 11:41:17,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:41:17,618 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:41:17,631 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:41:17,654 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:41:17,655 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:41:17,655 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:41:17,655 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:41:17,655 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:41:17,655 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:41:17,656 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:41:17,656 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:41:17,673 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-21 11:41:17,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-21 11:41:17,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:41:17,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:41:17,679 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:41:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:41:17,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2020-07-21 11:41:17,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:41:17,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330028312] [2020-07-21 11:41:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:41:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:41:17,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 11:41:17,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:41:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:41:17,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:41:17,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330028312] [2020-07-21 11:41:17,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:41:17,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 11:41:17,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362990876] [2020-07-21 11:41:17,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:41:17,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:41:17,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:41:17,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:41:17,960 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-07-21 11:41:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:41:18,082 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2020-07-21 11:41:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:41:18,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-21 11:41:18,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:41:18,093 INFO L225 Difference]: With dead ends: 36 [2020-07-21 11:41:18,093 INFO L226 Difference]: Without dead ends: 20 [2020-07-21 11:41:18,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:41:18,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-21 11:41:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-07-21 11:41:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-21 11:41:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-21 11:41:18,140 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-07-21 11:41:18,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:41:18,140 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-21 11:41:18,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:41:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-21 11:41:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 11:41:18,142 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:41:18,142 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:41:18,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:41:18,344 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:41:18,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:41:18,345 INFO L82 PathProgramCache]: Analyzing trace with hash 982254813, now seen corresponding path program 1 times [2020-07-21 11:41:18,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:41:18,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597130972] [2020-07-21 11:41:18,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:41:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:41:18,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 11:41:18,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:41:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:41:18,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:41:18,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:41:24,847 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 22 [2020-07-21 11:41:24,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:41:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:41:33,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597130972] [2020-07-21 11:41:33,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:41:33,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-21 11:41:33,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284728638] [2020-07-21 11:41:33,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 11:41:33,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:41:33,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 11:41:33,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=58, Unknown=6, NotChecked=0, Total=90 [2020-07-21 11:41:33,212 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2020-07-21 11:42:01,362 WARN L193 SmtUtils]: Spent 21.60 s on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-07-21 11:42:23,927 WARN L193 SmtUtils]: Spent 8.22 s on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 11:42:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:42:36,198 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-21 11:42:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:42:36,199 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-07-21 11:42:36,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:42:36,202 INFO L225 Difference]: With dead ends: 34 [2020-07-21 11:42:36,203 INFO L226 Difference]: Without dead ends: 32 [2020-07-21 11:42:36,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 63.2s TimeCoverageRelationStatistics Valid=45, Invalid=96, Unknown=15, NotChecked=0, Total=156 [2020-07-21 11:42:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-21 11:42:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-07-21 11:42:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-21 11:42:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-07-21 11:42:36,238 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 16 [2020-07-21 11:42:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:42:36,239 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-07-21 11:42:36,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 11:42:36,239 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-07-21 11:42:36,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-21 11:42:36,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:42:36,245 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:42:36,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:42:36,446 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:42:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:42:36,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1130438097, now seen corresponding path program 2 times [2020-07-21 11:42:36,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:42:36,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167551500] [2020-07-21 11:42:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:42:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:42:36,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-21 11:42:36,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:42:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 11:42:36,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:42:36,730 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:42:40,910 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:42:49,185 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:43:01,563 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:43:20,131 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 24 [2020-07-21 11:43:20,144 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:43:40,732 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:44:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 30 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 11:44:05,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167551500] [2020-07-21 11:44:05,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:44:05,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2020-07-21 11:44:05,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6371369] [2020-07-21 11:44:05,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-21 11:44:05,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:44:05,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-21 11:44:05,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=182, Unknown=42, NotChecked=0, Total=306 [2020-07-21 11:44:05,582 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 18 states. [2020-07-21 11:44:07,977 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~i~0 2)) (.cse1 (* c_main_~i~0 3))) (and (= (mod (+ c_main_~j~0 6) 4294967296) (mod (+ .cse0 6) 4294967296)) (= (mod (+ c_main_~j~0 4) 4294967296) (mod (+ .cse0 4) 4294967296)) (= (mod (+ c_main_~j~0 2) 4294967296) (mod (+ .cse0 2) 4294967296)) (= (mod (+ .cse1 18) 4294967296) (mod (+ c_main_~k~0 18) 4294967296)) (= (mod (+ .cse1 6) 4294967296) (mod (+ c_main_~k~0 6) 4294967296)) (= (mod (+ c_main_~k~0 3) 4294967296) (mod (+ .cse1 3) 4294967296)) (= (mod (+ c_main_~k~0 12) 4294967296) (mod (+ .cse1 12) 4294967296)) (= (mod c_main_~j~0 4294967296) (mod .cse0 4294967296)) (= (mod .cse1 4294967296) (mod c_main_~k~0 4294967296)) (= (mod (+ c_main_~j~0 8) 4294967296) (mod (+ .cse0 8) 4294967296)) (= (mod (+ .cse0 10) 4294967296) (mod (+ c_main_~j~0 10) 4294967296)) (= (mod (+ .cse0 12) 4294967296) (mod (+ c_main_~j~0 12) 4294967296)) (= (mod (+ c_main_~k~0 9) 4294967296) (mod (+ .cse1 9) 4294967296)) (= (mod (+ c_main_~k~0 15) 4294967296) (mod (+ .cse1 15) 4294967296)))) is different from false [2020-07-21 11:44:09,992 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~i~0 2)) (.cse1 (* c_main_~i~0 3))) (and (= (mod (+ c_main_~j~0 6) 4294967296) (mod (+ .cse0 6) 4294967296)) (= (mod (+ c_main_~j~0 4) 4294967296) (mod (+ .cse0 4) 4294967296)) (= (mod (+ c_main_~j~0 2) 4294967296) (mod (+ .cse0 2) 4294967296)) (= (mod (+ .cse1 6) 4294967296) (mod (+ c_main_~k~0 6) 4294967296)) (= (mod (+ c_main_~k~0 3) 4294967296) (mod (+ .cse1 3) 4294967296)) (= (mod (+ c_main_~k~0 12) 4294967296) (mod (+ .cse1 12) 4294967296)) (= (mod (+ c_main_~j~0 8) 4294967296) (mod (+ .cse0 8) 4294967296)) (= (mod (+ .cse0 10) 4294967296) (mod (+ c_main_~j~0 10) 4294967296)) (= (mod (+ c_main_~k~0 9) 4294967296) (mod (+ .cse1 9) 4294967296)) (= (mod (+ c_main_~k~0 15) 4294967296) (mod (+ .cse1 15) 4294967296)))) is different from false [2020-07-21 11:44:12,003 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* c_main_~i~0 2)) (.cse0 (* c_main_~i~0 3))) (and (= (mod .cse0 4294967296) (mod c_main_~k~0 4294967296)) (= (mod (+ c_main_~j~0 6) 4294967296) (mod (+ .cse1 6) 4294967296)) (= (mod (+ c_main_~j~0 4) 4294967296) (mod (+ .cse1 4) 4294967296)) (= (mod (+ c_main_~j~0 2) 4294967296) (mod (+ .cse1 2) 4294967296)) (= (mod (+ .cse0 6) 4294967296) (mod (+ c_main_~k~0 6) 4294967296)) (= (mod (+ c_main_~k~0 3) 4294967296) (mod (+ .cse0 3) 4294967296)) (= (mod (+ c_main_~k~0 12) 4294967296) (mod (+ .cse0 12) 4294967296)) (= (mod (+ c_main_~j~0 8) 4294967296) (mod (+ .cse1 8) 4294967296)) (= (mod c_main_~j~0 4294967296) (mod .cse1 4294967296)) (= (mod (+ c_main_~k~0 9) 4294967296) (mod (+ .cse0 9) 4294967296)))) is different from false [2020-07-21 11:45:10,160 WARN L193 SmtUtils]: Spent 36.17 s on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2020-07-21 11:45:18,213 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* c_main_~i~0 2)) (.cse0 (* c_main_~i~0 3))) (and (= (mod .cse0 4294967296) (mod c_main_~k~0 4294967296)) (= (mod (+ c_main_~j~0 6) 4294967296) (mod (+ .cse1 6) 4294967296)) (= (mod (+ c_main_~j~0 4) 4294967296) (mod (+ .cse1 4) 4294967296)) (= (mod (+ c_main_~j~0 2) 4294967296) (mod (+ .cse1 2) 4294967296)) (= (mod (+ .cse0 6) 4294967296) (mod (+ c_main_~k~0 6) 4294967296)) (= (mod (+ c_main_~k~0 3) 4294967296) (mod (+ .cse0 3) 4294967296)) (= (mod c_main_~j~0 4294967296) (mod .cse1 4294967296)) (= (mod (+ c_main_~k~0 9) 4294967296) (mod (+ .cse0 9) 4294967296)))) is different from false [2020-07-21 11:45:55,723 WARN L193 SmtUtils]: Spent 12.50 s on a formula simplification that was a NOOP. DAG size: 53 [2020-07-21 11:46:01,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:46:01,781 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2020-07-21 11:46:01,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 11:46:01,795 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-07-21 11:46:01,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:46:01,796 INFO L225 Difference]: With dead ends: 38 [2020-07-21 11:46:01,796 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:46:01,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 192.6s TimeCoverageRelationStatistics Valid=121, Invalid=248, Unknown=67, NotChecked=164, Total=600 [2020-07-21 11:46:01,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:46:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:46:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:46:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:46:01,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-07-21 11:46:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:46:01,802 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:46:01,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-21 11:46:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:46:01,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:46:02,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:46:02,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:46:36,922 WARN L193 SmtUtils]: Spent 34.74 s on a formula simplification. DAG size of input: 156 DAG size of output: 39 [2020-07-21 11:47:25,156 WARN L193 SmtUtils]: Spent 48.23 s on a formula simplification. DAG size of input: 140 DAG size of output: 63 [2020-07-21 11:47:25,162 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-21 11:47:25,162 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:47:25,162 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:47:25,163 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 11:47:25,163 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:47:25,163 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:47:25,163 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-07-21 11:47:25,163 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-07-21 11:47:25,164 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (* main_~i~0 3)) (.cse1 (* main_~i~0 2))) (and (= (mod (+ .cse0 6) 4294967296) (mod (+ main_~k~0 6) 4294967296)) (= (mod (+ .cse0 3) 4294967296) (mod (+ main_~k~0 3) 4294967296)) (= (mod (+ main_~j~0 2) 4294967296) (mod (+ .cse1 2) 4294967296)) (= (mod (+ main_~k~0 9) 4294967296) (mod (+ .cse0 9) 4294967296)) (= (mod (+ .cse1 6) 4294967296) (mod (+ main_~j~0 6) 4294967296)) (= (mod (+ .cse1 4) 4294967296) (mod (+ main_~j~0 4) 4294967296)) (= (mod main_~k~0 4294967296) (mod .cse0 4294967296)) (= (mod .cse1 4294967296) (mod main_~j~0 4294967296)))) [2020-07-21 11:47:25,164 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse1 (* main_~i~0 2)) (.cse0 (* main_~i~0 3))) (and (= (mod (+ .cse0 3) 4294967296) (mod (+ main_~k~0 3) 4294967296)) (= (mod (+ main_~j~0 6) 4294967296) (mod (+ .cse1 6) 4294967296)) (= (mod (+ main_~j~0 4) 4294967296) (mod (+ .cse1 4) 4294967296)) (= (mod (+ main_~k~0 9) 4294967296) (mod (+ .cse0 9) 4294967296)))) [2020-07-21 11:47:25,164 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 26) no Hoare annotation was computed. [2020-07-21 11:47:25,164 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-07-21 11:47:25,164 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-07-21 11:47:25,165 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-21 11:47:25,165 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-21 11:47:25,165 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-07-21 11:47:25,165 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-21 11:47:25,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:47:25 BoogieIcfgContainer [2020-07-21 11:47:25,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:47:25,183 INFO L168 Benchmark]: Toolchain (without parser) took 368310.57 ms. Allocated memory was 140.5 MB in the beginning and 242.2 MB in the end (delta: 101.7 MB). Free memory was 105.2 MB in the beginning and 188.2 MB in the end (delta: -83.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:47:25,184 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:47:25,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.79 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 95.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:47:25,186 INFO L168 Benchmark]: Boogie Preprocessor took 125.97 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 95.1 MB in the beginning and 179.6 MB in the end (delta: -84.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:47:25,187 INFO L168 Benchmark]: RCFGBuilder took 261.26 ms. Allocated memory is still 200.3 MB. Free memory was 179.6 MB in the beginning and 167.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:47:25,188 INFO L168 Benchmark]: TraceAbstraction took 367588.24 ms. Allocated memory was 200.3 MB in the beginning and 242.2 MB in the end (delta: 41.9 MB). Free memory was 167.2 MB in the beginning and 188.2 MB in the end (delta: -21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:47:25,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 325.79 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 95.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.97 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 95.1 MB in the beginning and 179.6 MB in the end (delta: -84.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 261.26 ms. Allocated memory is still 200.3 MB. Free memory was 179.6 MB in the beginning and 167.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 367588.24 ms. Allocated memory was 200.3 MB in the beginning and 242.2 MB in the end (delta: 41.9 MB). Free memory was 167.2 MB in the beginning and 188.2 MB in the end (delta: -21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 19]: Loop Invariant Derived loop invariant: (((i * 3 + 3) % 4294967296 == (k + 3) % 4294967296 && (j + 6) % 4294967296 == (i * 2 + 6) % 4294967296) && (j + 4) % 4294967296 == (i * 2 + 4) % 4294967296) && (k + 9) % 4294967296 == (i * 3 + 9) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 284.3s, OverallIterations: 3, TraceHistogramMax: 6, AutomataDifference: 179.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 83.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 15 SDslu, 205 SDs, 0 SdLazy, 227 SolverSat, 39 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 26.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 255.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 16 PreInvPairs, 35 NumberOfFragments, 155 HoareAnnotationTreeSize, 16 FomulaSimplifications, 429 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 431 FormulaSimplificationTreeSizeReductionInter, 82.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 104.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 22251 SizeOfPredicates, 6 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 104/168 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...