/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -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 [2020-07-20 17:51:18,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:51:18,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:51:18,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:51:18,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:51:18,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:51:18,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:51:18,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:51:18,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:51:18,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:51:18,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:51:18,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:51:18,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:51:18,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:51:18,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:51:18,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:51:18,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:51:18,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:51:18,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:51:18,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:51:18,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:51:18,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:51:18,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:51:18,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:51:18,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:51:18,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:51:18,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:51:18,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:51:18,376 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 [2020-07-20 17:51:18,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:51:18,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:51:18,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:51:18,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:51:18,392 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:51:18,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:51:18,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:51:18,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:51:18,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:51:18,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:51:18,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:51:18,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:51:18,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:51:18,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:51:18,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:51:18,395 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:51:18,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:51:18,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:51:18,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:51:18,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:51:18,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:51:18,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:51:18,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:51:18,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:51:18,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:51:18,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:51:18,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:51:18,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:51:18,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:51:18,398 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:51:18,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:51:18,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:51:18,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:51:18,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:51:18,740 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:51:18,741 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-07-20 17:51:18,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8211161/fb5662aeae5a4b8ea209e550024335bf/FLAGfda2c244e [2020-07-20 17:51:19,301 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:51:19,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-07-20 17:51:19,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8211161/fb5662aeae5a4b8ea209e550024335bf/FLAGfda2c244e [2020-07-20 17:51:19,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f8211161/fb5662aeae5a4b8ea209e550024335bf [2020-07-20 17:51:19,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:51:19,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:51:19,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:51:19,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:51:19,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:51:19,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:19,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118b3e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19, skipping insertion in model container [2020-07-20 17:51:19,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:19,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:51:19,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:51:19,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:51:19,924 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:51:19,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:51:19,956 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:51:19,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19 WrapperNode [2020-07-20 17:51:19,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:51:19,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:51:19,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:51:19,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:51:19,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:19,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:19,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:19,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:20,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:20,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:20,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (1/1) ... [2020-07-20 17:51:20,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:51:20,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:51:20,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:51:20,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:51:20,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (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 [2020-07-20 17:51:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:51:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:51:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 17:51:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:51:20,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:51:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 17:51:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:51:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:51:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:51:20,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:51:20,339 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:51:20,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:51:20 BoogieIcfgContainer [2020-07-20 17:51:20,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:51:20,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:51:20,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:51:20,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:51:20,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:51:19" (1/3) ... [2020-07-20 17:51:20,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a59dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:51:20, skipping insertion in model container [2020-07-20 17:51:20,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:51:19" (2/3) ... [2020-07-20 17:51:20,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a59dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:51:20, skipping insertion in model container [2020-07-20 17:51:20,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:51:20" (3/3) ... [2020-07-20 17:51:20,353 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2020-07-20 17:51:20,364 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:51:20,373 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:51:20,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:51:20,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:51:20,413 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:51:20,414 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:51:20,414 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:51:20,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:51:20,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:51:20,414 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:51:20,414 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:51:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-20 17:51:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 17:51:20,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:51:20,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:51:20,442 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:51:20,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:51:20,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2020-07-20 17:51:20,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:51:20,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310726095] [2020-07-20 17:51:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 17:51:20,536 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:51:20,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:51:20,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:51:20,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:51:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:51:20,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:51:20,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310726095] [2020-07-20 17:51:20,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:51:20,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 17:51:20,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407967950] [2020-07-20 17:51:20,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:51:20,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:51:20,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:51:20,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:51:20,761 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-07-20 17:51:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:51:20,882 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2020-07-20 17:51:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:51:20,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-20 17:51:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:51:20,894 INFO L225 Difference]: With dead ends: 36 [2020-07-20 17:51:20,894 INFO L226 Difference]: Without dead ends: 20 [2020-07-20 17:51:20,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:51:20,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-20 17:51:20,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-07-20 17:51:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-20 17:51:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-20 17:51:20,943 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-07-20 17:51:20,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:51:20,943 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-20 17:51:20,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:51:20,944 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-20 17:51:20,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-20 17:51:20,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:51:20,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:51:21,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:51:21,159 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:51:21,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:51:21,160 INFO L82 PathProgramCache]: Analyzing trace with hash 982254813, now seen corresponding path program 1 times [2020-07-20 17:51:21,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:51:21,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194290776] [2020-07-20 17:51:21,161 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 17:51:21,216 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:51:21,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:51:21,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-20 17:51:21,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:51:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:51:21,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:51:21,346 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:51:27,608 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 22 [2020-07-20 17:51:27,640 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:51:37,967 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 24 [2020-07-20 17:51:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:51:37,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194290776] [2020-07-20 17:51:37,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:51:37,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-20 17:51:37,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950036526] [2020-07-20 17:51:37,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 17:51:37,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:51:37,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 17:51:37,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=58, Unknown=6, NotChecked=0, Total=90 [2020-07-20 17:51:37,990 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2020-07-20 17:52:11,143 WARN L193 SmtUtils]: Spent 26.12 s on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2020-07-20 17:52:31,828 WARN L193 SmtUtils]: Spent 8.26 s on a formula simplification that was a NOOP. DAG size: 32 [2020-07-20 17:52:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:52:44,310 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-07-20 17:52:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:52:44,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-07-20 17:52:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:52:44,317 INFO L225 Difference]: With dead ends: 32 [2020-07-20 17:52:44,318 INFO L226 Difference]: Without dead ends: 30 [2020-07-20 17:52:44,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 68.2s TimeCoverageRelationStatistics Valid=46, Invalid=96, Unknown=14, NotChecked=0, Total=156 [2020-07-20 17:52:44,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-20 17:52:44,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-07-20 17:52:44,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-20 17:52:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-07-20 17:52:44,333 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 16 [2020-07-20 17:52:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:52:44,334 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-07-20 17:52:44,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 17:52:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-07-20 17:52:44,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-20 17:52:44,336 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:52:44,337 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:52:44,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:52:44,552 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:52:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:52:44,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1624375756, now seen corresponding path program 2 times [2020-07-20 17:52:44,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:52:44,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648627995] [2020-07-20 17:52:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-20 17:52:44,710 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:52:44,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:52:44,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-20 17:52:44,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:52:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 17:52:44,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:52:44,915 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:52:49,140 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:52:57,424 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:53:11,796 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 24 [2020-07-20 17:53:11,807 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:53:26,943 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 17:53:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 0 refuted. 18 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 17:53:46,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648627995] [2020-07-20 17:53:46,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:53:46,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-20 17:53:46,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821909794] [2020-07-20 17:53:46,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 17:53:46,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:53:46,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 17:53:46,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=145, Unknown=28, NotChecked=0, Total=240 [2020-07-20 17:53:46,540 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 16 states. [2020-07-20 17:53:48,887 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~i~0 3)) (.cse1 (* c_main_~i~0 2))) (and (= (mod (+ .cse0 9) 4294967296) (mod (+ c_main_~k~0 9) 4294967296)) (= (mod (+ c_main_~k~0 3) 4294967296) (mod (+ .cse0 3) 4294967296)) (= (mod (+ .cse1 6) 4294967296) (mod (+ c_main_~j~0 6) 4294967296)) (= (mod (+ .cse0 15) 4294967296) (mod (+ c_main_~k~0 15) 4294967296)) (= (mod (+ c_main_~j~0 10) 4294967296) (mod (+ .cse1 10) 4294967296)) (= (mod (+ c_main_~k~0 6) 4294967296) (mod (+ .cse0 6) 4294967296)) (= (mod (+ .cse1 4) 4294967296) (mod (+ c_main_~j~0 4) 4294967296)) (= (mod (+ .cse1 2) 4294967296) (mod (+ c_main_~j~0 2) 4294967296)))) is different from false [2020-07-20 17:54:20,108 WARN L193 SmtUtils]: Spent 12.59 s on a formula simplification that was a NOOP. DAG size: 53 [2020-07-20 17:55:32,629 WARN L193 SmtUtils]: Spent 51.18 s on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-07-20 17:55:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:55:38,906 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2020-07-20 17:55:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 17:55:38,920 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2020-07-20 17:55:38,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:55:38,921 INFO L225 Difference]: With dead ends: 34 [2020-07-20 17:55:38,921 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:55:38,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 163.4s TimeCoverageRelationStatistics Valid=99, Invalid=201, Unknown=46, NotChecked=34, Total=380 [2020-07-20 17:55:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:55:38,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:55:38,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:55:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:55:38,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2020-07-20 17:55:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:55:38,924 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:55:38,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 17:55:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:55:38,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:55:39,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:55:39,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:57:25,211 WARN L193 SmtUtils]: Spent 1.77 m on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2020-07-20 18:01:21,592 WARN L193 SmtUtils]: Spent 3.94 m on a formula simplification. DAG size of input: 160 DAG size of output: 65 [2020-07-20 18:01:21,604 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-20 18:01:21,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 18:01:21,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 18:01:21,605 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 18:01:21,605 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 18:01:21,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 18:01:21,606 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-07-20 18:01:21,606 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-07-20 18:01:21,606 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (* main_~i~0 2)) (.cse1 (* main_~i~0 3))) (or (and (= (mod main_~j~0 4294967296) (mod .cse0 4294967296)) (= (mod main_~k~0 4294967296) (mod .cse1 4294967296)) (= (mod (+ .cse1 9) 4294967296) (mod (+ main_~k~0 9) 4294967296))) (and (= (mod (+ main_~k~0 6) 4294967296) (mod (+ .cse1 6) 4294967296)) (= (mod (+ main_~j~0 4) 4294967296) (mod (+ .cse0 4) 4294967296)) (= (mod (+ .cse0 6) 4294967296) (mod (+ main_~j~0 6) 4294967296)) (= (mod (+ .cse0 2) 4294967296) (mod (+ main_~j~0 2) 4294967296)) (= (mod (+ main_~k~0 3) 4294967296) (mod (+ .cse1 3) 4294967296))))) [2020-07-20 18:01:21,606 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse0 (* main_~i~0 2)) (.cse9 (* main_~i~0 3))) (let ((.cse6 (+ .cse9 9)) (.cse5 (+ main_~k~0 9)) (.cse4 (+ main_~k~0 6)) (.cse3 (+ .cse9 6)) (.cse7 (+ main_~k~0 3)) (.cse8 (+ .cse9 3)) (.cse2 (+ main_~j~0 6)) (.cse1 (+ .cse0 6))) (or (and (= (mod (+ main_~j~0 4) 4294967296) (mod (+ .cse0 4) 4294967296)) (= (mod .cse1 4294967296) (mod .cse2 4294967296)) (= (mod (+ .cse0 2) 4294967296) (mod (+ main_~j~0 2) 4294967296)) (= (mod .cse3 4294967296) (mod .cse4 4294967296)) (= (mod .cse5 4294967296) (mod .cse6 4294967296)) (= (mod .cse7 4294967296) (mod .cse8 4294967296))) (and (= (mod .cse9 4294967296) (mod main_~k~0 4294967296)) (= (mod .cse0 4294967296) (mod main_~j~0 4294967296)) (= (mod .cse6 4294967296) (mod .cse5 4294967296)) (= (mod .cse4 4294967296) (mod .cse3 4294967296)) (= (mod .cse7 4294967296) (mod .cse8 4294967296)) (= (mod .cse2 4294967296) (mod .cse1 4294967296)))))) [2020-07-20 18:01:21,606 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 26) no Hoare annotation was computed. [2020-07-20 18:01:21,607 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-07-20 18:01:21,607 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-07-20 18:01:21,607 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-20 18:01:21,607 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-20 18:01:21,607 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-07-20 18:01:21,607 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-20 18:01:21,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:01:21 BoogieIcfgContainer [2020-07-20 18:01:21,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 18:01:21,646 INFO L168 Benchmark]: Toolchain (without parser) took 601951.15 ms. Allocated memory was 137.4 MB in the beginning and 247.5 MB in the end (delta: 110.1 MB). Free memory was 101.7 MB in the beginning and 202.5 MB in the end (delta: -100.8 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2020-07-20 18:01:21,647 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 18:01:21,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.50 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 92.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-20 18:01:21,650 INFO L168 Benchmark]: Boogie Preprocessor took 120.05 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 92.0 MB in the beginning and 180.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-07-20 18:01:21,651 INFO L168 Benchmark]: RCFGBuilder took 263.96 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 168.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-07-20 18:01:21,652 INFO L168 Benchmark]: TraceAbstraction took 601298.03 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 168.0 MB in the beginning and 202.5 MB in the end (delta: -34.5 MB). Peak memory consumption was 119.3 MB. Max. memory is 7.1 GB. [2020-07-20 18:01:21,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.50 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 92.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.05 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 92.0 MB in the beginning and 180.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 263.96 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 168.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 601298.03 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 168.0 MB in the beginning and 202.5 MB in the end (delta: -34.5 MB). Peak memory consumption was 119.3 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: ((((((j + 4) % 4294967296 == (i * 2 + 4) % 4294967296 && (i * 2 + 6) % 4294967296 == (j + 6) % 4294967296) && (i * 2 + 2) % 4294967296 == (j + 2) % 4294967296) && (i * 3 + 6) % 4294967296 == (k + 6) % 4294967296) && (k + 9) % 4294967296 == (i * 3 + 9) % 4294967296) && (k + 3) % 4294967296 == (i * 3 + 3) % 4294967296) || (((((i * 3 % 4294967296 == k % 4294967296 && i * 2 % 4294967296 == j % 4294967296) && (i * 3 + 9) % 4294967296 == (k + 9) % 4294967296) && (k + 6) % 4294967296 == (i * 3 + 6) % 4294967296) && (k + 3) % 4294967296 == (i * 3 + 3) % 4294967296) && (j + 6) % 4294967296 == (i * 2 + 6) % 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 258.7s, OverallIterations: 3, TraceHistogramMax: 5, AutomataDifference: 178.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 342.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 15 SDslu, 166 SDs, 0 SdLazy, 195 SolverSat, 33 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 24.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 78 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 231.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 14 PreInvPairs, 29 NumberOfFragments, 255 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 307 FormulaSimplificationTreeSizeReductionInter, 342.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 78.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 16557 SizeOfPredicates, 6 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 70/112 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...