/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 BIGGEST_EQUIVALENCE_CLASS --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 [2020-07-21 23:16:11,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 23:16:11,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 23:16:11,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 23:16:11,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 23:16:11,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 23:16:11,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 23:16:11,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 23:16:11,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 23:16:11,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 23:16:11,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 23:16:11,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 23:16:11,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 23:16:11,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 23:16:11,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 23:16:11,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 23:16:11,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 23:16:11,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 23:16:11,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 23:16:11,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 23:16:11,973 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 23:16:12,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 23:16:12,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 23:16:12,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 23:16:12,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 23:16:12,017 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 23:16:12,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 23:16:12,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 23:16:12,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 23:16:12,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 23:16:12,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 23:16:12,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 23:16:12,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 23:16:12,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 23:16:12,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 23:16:12,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 23:16:12,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 23:16:12,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 23:16:12,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 23:16:12,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 23:16:12,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 23:16:12,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 23:16:12,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:16:12,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 23:16:12,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 23:16:12,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 23:16:12,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 23:16:12,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:16:12,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 23:16:12,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 23:16:12,025 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 -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-21 23:16:12,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 23:16:12,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 23:16:12,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 23:16:12,446 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 23:16:12,447 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 23:16:12,448 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-07-21 23:16:12,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2529a8fcd/34c62c1497934bb998a66ac56366f61c/FLAG951f2338f [2020-07-21 23:16:13,100 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 23:16:13,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2020-07-21 23:16:13,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2529a8fcd/34c62c1497934bb998a66ac56366f61c/FLAG951f2338f [2020-07-21 23:16:13,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2529a8fcd/34c62c1497934bb998a66ac56366f61c [2020-07-21 23:16:13,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 23:16:13,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 23:16:13,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 23:16:13,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 23:16:13,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 23:16:13,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472545e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13, skipping insertion in model container [2020-07-21 23:16:13,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 23:16:13,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 23:16:13,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:16:13,674 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 23:16:13,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:16:13,708 INFO L208 MainTranslator]: Completed translation [2020-07-21 23:16:13,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13 WrapperNode [2020-07-21 23:16:13,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 23:16:13,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 23:16:13,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 23:16:13,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 23:16:13,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (1/1) ... [2020-07-21 23:16:13,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 23:16:13,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 23:16:13,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 23:16:13,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 23:16:13,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (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 23:16:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 23:16:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 23:16:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 23:16:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 23:16:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 23:16:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 23:16:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 23:16:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 23:16:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 23:16:14,155 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 23:16:14,156 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 23:16:14,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:16:14 BoogieIcfgContainer [2020-07-21 23:16:14,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 23:16:14,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 23:16:14,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 23:16:14,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 23:16:14,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:16:13" (1/3) ... [2020-07-21 23:16:14,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8a387a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:16:14, skipping insertion in model container [2020-07-21 23:16:14,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:16:13" (2/3) ... [2020-07-21 23:16:14,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8a387a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:16:14, skipping insertion in model container [2020-07-21 23:16:14,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:16:14" (3/3) ... [2020-07-21 23:16:14,171 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2020-07-21 23:16:14,183 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 23:16:14,193 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 23:16:14,212 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 23:16:14,244 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 23:16:14,244 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 23:16:14,244 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 23:16:14,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 23:16:14,245 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 23:16:14,245 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 23:16:14,245 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 23:16:14,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 23:16:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-21 23:16:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-21 23:16:14,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:16:14,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:16:14,276 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:16:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:16:14,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2020-07-21 23:16:14,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:16:14,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468594618] [2020-07-21 23:16:14,292 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 [2020-07-21 23:16:14,392 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:16:14,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:16:14,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 23:16:14,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:16:14,611 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 23:16:14,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:16:14,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468594618] [2020-07-21 23:16:14,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:16:14,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 23:16:14,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683681159] [2020-07-21 23:16:14,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:16:14,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:16:14,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:16:14,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 23:16:14,648 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-07-21 23:16:14,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:16:14,831 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2020-07-21 23:16:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 23:16:14,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-07-21 23:16:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:16:14,846 INFO L225 Difference]: With dead ends: 36 [2020-07-21 23:16:14,846 INFO L226 Difference]: Without dead ends: 20 [2020-07-21 23:16:14,852 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 [2020-07-21 23:16:14,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-21 23:16:14,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-07-21 23:16:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-21 23:16:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-21 23:16:14,908 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-07-21 23:16:14,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:16:14,909 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-21 23:16:14,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:16:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-21 23:16:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 23:16:14,911 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:16:14,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:16:15,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:16:15,114 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:16:15,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:16:15,115 INFO L82 PathProgramCache]: Analyzing trace with hash 982254813, now seen corresponding path program 1 times [2020-07-21 23:16:15,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:16:15,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310508306] [2020-07-21 23:16:15,117 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 [2020-07-21 23:16:15,165 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:16:15,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:16:15,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 23:16:15,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:16:15,275 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 23:16:15,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:16:15,319 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:16:22,030 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 22 [2020-07-21 23:16:22,073 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:16:30,357 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 23:16:30,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310508306] [2020-07-21 23:16:30,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:16:30,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-21 23:16:30,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645544472] [2020-07-21 23:16:30,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 23:16:30,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:16:30,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 23:16:30,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=58, Unknown=6, NotChecked=0, Total=90 [2020-07-21 23:16:30,365 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 10 states. [2020-07-21 23:16:52,163 WARN L193 SmtUtils]: Spent 15.29 s on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 23:17:15,179 WARN L193 SmtUtils]: Spent 10.31 s on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-07-21 23:17:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:17:25,397 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-07-21 23:17:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 23:17:25,399 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-07-21 23:17:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:17:25,402 INFO L225 Difference]: With dead ends: 34 [2020-07-21 23:17:25,402 INFO L226 Difference]: Without dead ends: 32 [2020-07-21 23:17:25,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.5s TimeCoverageRelationStatistics Valid=46, Invalid=96, Unknown=14, NotChecked=0, Total=156 [2020-07-21 23:17:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-21 23:17:25,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-07-21 23:17:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-21 23:17:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-07-21 23:17:25,423 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 16 [2020-07-21 23:17:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:17:25,424 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-07-21 23:17:25,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 23:17:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-07-21 23:17:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-21 23:17:25,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:17:25,428 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:17:25,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:17:25,630 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:17:25,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:17:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1130438097, now seen corresponding path program 2 times [2020-07-21 23:17:25,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:17:25,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948122201] [2020-07-21 23:17:25,632 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 [2020-07-21 23:17:25,805 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:17:25,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:17:25,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-21 23:17:25,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:17:25,990 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 23:17:25,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:17:26,040 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:17:30,315 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:17:38,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:17:51,100 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:18:07,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:18:28,170 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-07-21 23:18:28,181 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:18:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 0 refuted. 29 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 23:18:51,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948122201] [2020-07-21 23:18:51,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:18:51,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2020-07-21 23:18:51,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757953846] [2020-07-21 23:18:51,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-21 23:18:51,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:18:51,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-21 23:18:51,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=182, Unknown=41, NotChecked=0, Total=306 [2020-07-21 23:18:51,421 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 18 states. [2020-07-21 23:18:53,866 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 4) 4294967296) (mod (+ .cse0 4) 4294967296)) (= (mod (+ .cse1 3) 4294967296) (mod (+ c_main_~k~0 3) 4294967296)) (= (mod (+ .cse0 6) 4294967296) (mod (+ c_main_~j~0 6) 4294967296)) (= (mod (+ .cse1 9) 4294967296) (mod (+ c_main_~k~0 9) 4294967296)) (= (mod (+ c_main_~j~0 10) 4294967296) (mod (+ .cse0 10) 4294967296)) (= (mod (+ c_main_~k~0 15) 4294967296) (mod (+ .cse1 15) 4294967296)) (= (mod (+ c_main_~k~0 12) 4294967296) (mod (+ .cse1 12) 4294967296)) (= (mod c_main_~j~0 4294967296) (mod .cse0 4294967296)) (= (mod (+ .cse0 8) 4294967296) (mod (+ c_main_~j~0 8) 4294967296)) (= (mod (+ c_main_~k~0 6) 4294967296) (mod (+ .cse1 6) 4294967296)) (= (mod (+ .cse0 2) 4294967296) (mod (+ c_main_~j~0 2) 4294967296)) (= (mod c_main_~k~0 4294967296) (mod .cse1 4294967296)))) is different from false [2020-07-21 23:19:44,697 WARN L193 SmtUtils]: Spent 31.75 s on a formula simplification that was a NOOP. DAG size: 85 [2020-07-21 23:19:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:19:46,718 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2020-07-21 23:19:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 23:19:46,756 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-07-21 23:19:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:19:46,757 INFO L225 Difference]: With dead ends: 34 [2020-07-21 23:19:46,757 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:19:46,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 138.2s TimeCoverageRelationStatistics Valid=104, Invalid=229, Unknown=51, NotChecked=36, Total=420 [2020-07-21 23:19:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:19:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:19:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:19:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:19:46,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-07-21 23:19:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:19:46,760 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:19:46,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-21 23:19:46,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:19:46,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:19:46,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:19:46,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:21:10,843 WARN L193 SmtUtils]: Spent 1.40 m on a formula simplification. DAG size of input: 163 DAG size of output: 64 [2020-07-21 23:22:00,740 WARN L193 SmtUtils]: Spent 49.89 s on a formula simplification. DAG size of input: 168 DAG size of output: 67 [2020-07-21 23:22:00,748 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-21 23:22:00,749 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:22:00,749 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:22:00,749 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 23:22:00,749 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:22:00,749 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:22:00,749 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-07-21 23:22:00,749 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-07-21 23:22:00,751 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 3) 4294967296) (mod (+ main_~k~0 3) 4294967296)) (= (mod (+ main_~k~0 12) 4294967296) (mod (+ .cse0 12) 4294967296)) (= (mod (+ main_~k~0 6) 4294967296) (mod (+ .cse0 6) 4294967296)) (= (mod (+ main_~k~0 15) 4294967296) (mod (+ .cse0 15) 4294967296)) (= (mod (+ .cse1 8) 4294967296) (mod (+ main_~j~0 8) 4294967296)) (= (mod (+ main_~j~0 6) 4294967296) (mod (+ .cse1 6) 4294967296)) (= (mod (+ main_~j~0 10) 4294967296) (mod (+ .cse1 10) 4294967296)) (= (mod .cse1 4294967296) (mod main_~j~0 4294967296)))) [2020-07-21 23:22:00,751 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse1 (* main_~i~0 3)) (.cse0 (* main_~i~0 2))) (and (= (mod (+ main_~j~0 8) 4294967296) (mod (+ .cse0 8) 4294967296)) (= (mod (+ .cse0 10) 4294967296) (mod (+ main_~j~0 10) 4294967296)) (= (mod (+ main_~k~0 15) 4294967296) (mod (+ .cse1 15) 4294967296)) (= (mod (+ main_~k~0 9) 4294967296) (mod (+ .cse1 9) 4294967296)) (= (mod (+ main_~k~0 12) 4294967296) (mod (+ .cse1 12) 4294967296)) (= (mod (+ main_~j~0 6) 4294967296) (mod (+ .cse0 6) 4294967296)) (= (mod (+ .cse0 4) 4294967296) (mod (+ main_~j~0 4) 4294967296)))) [2020-07-21 23:22:00,752 INFO L268 CegarLoopResult]: For program point L19-2(lines 13 26) no Hoare annotation was computed. [2020-07-21 23:22:00,752 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2020-07-21 23:22:00,752 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2020-07-21 23:22:00,752 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-21 23:22:00,752 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-21 23:22:00,752 INFO L268 CegarLoopResult]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2020-07-21 23:22:00,753 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-21 23:22:00,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:22:00 BoogieIcfgContainer [2020-07-21 23:22:00,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:22:00,786 INFO L168 Benchmark]: Toolchain (without parser) took 347388.32 ms. Allocated memory was 142.6 MB in the beginning and 251.1 MB in the end (delta: 108.5 MB). Free memory was 100.9 MB in the beginning and 213.8 MB in the end (delta: -112.9 MB). Peak memory consumption was 111.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:22:00,787 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 23:22:00,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.89 ms. Allocated memory is still 142.6 MB. Free memory was 100.7 MB in the beginning and 90.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-21 23:22:00,789 INFO L168 Benchmark]: Boogie Preprocessor took 147.56 ms. Allocated memory was 142.6 MB in the beginning and 199.2 MB in the end (delta: 56.6 MB). Free memory was 90.8 MB in the beginning and 179.3 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-21 23:22:00,790 INFO L168 Benchmark]: RCFGBuilder took 302.21 ms. Allocated memory is still 199.2 MB. Free memory was 179.3 MB in the beginning and 166.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-07-21 23:22:00,791 INFO L168 Benchmark]: TraceAbstraction took 346621.53 ms. Allocated memory was 199.2 MB in the beginning and 251.1 MB in the end (delta: 51.9 MB). Free memory was 166.7 MB in the beginning and 213.8 MB in the end (delta: -47.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2020-07-21 23:22:00,795 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 142.6 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.89 ms. Allocated memory is still 142.6 MB. Free memory was 100.7 MB in the beginning and 90.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.56 ms. Allocated memory was 142.6 MB in the beginning and 199.2 MB in the end (delta: 56.6 MB). Free memory was 90.8 MB in the beginning and 179.3 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 302.21 ms. Allocated memory is still 199.2 MB. Free memory was 179.3 MB in the beginning and 166.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 346621.53 ms. Allocated memory was 199.2 MB in the beginning and 251.1 MB in the end (delta: 51.9 MB). Free memory was 166.7 MB in the beginning and 213.8 MB in the end (delta: -47.2 MB). Peak memory consumption was 120.2 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 + 8) % 4294967296 == (i * 2 + 8) % 4294967296 && (i * 2 + 10) % 4294967296 == (j + 10) % 4294967296) && (k + 15) % 4294967296 == (i * 3 + 15) % 4294967296) && (k + 9) % 4294967296 == (i * 3 + 9) % 4294967296) && (k + 12) % 4294967296 == (i * 3 + 12) % 4294967296) && (j + 6) % 4294967296 == (i * 2 + 6) % 4294967296) && (i * 2 + 4) % 4294967296 == (j + 4) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 212.7s, OverallIterations: 3, TraceHistogramMax: 6, AutomataDifference: 110.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 133.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 15 SDslu, 194 SDs, 0 SdLazy, 225 SolverSat, 39 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 88 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 195.9s 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, 14 PreInvPairs, 29 NumberOfFragments, 198 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 439 FormulaSimplificationTreeSizeReductionInter, 133.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 101.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 22251 SizeOfPredicates, 6 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 105/168 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...