/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/loops-crafted-1/sumt7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 23:39:13,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 23:39:13,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 23:39:13,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 23:39:13,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 23:39:13,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 23:39:13,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 23:39:13,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 23:39:13,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 23:39:13,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 23:39:13,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 23:39:13,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 23:39:13,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 23:39:13,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 23:39:13,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 23:39:13,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 23:39:13,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 23:39:13,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 23:39:13,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 23:39:13,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 23:39:13,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 23:39:13,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 23:39:13,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 23:39:14,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 23:39:14,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 23:39:14,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 23:39:14,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 23:39:14,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 23:39:14,020 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 23:39:14,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 23:39:14,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 23:39:14,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 23:39:14,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 23:39:14,063 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 23:39:14,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 23:39:14,063 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 23:39:14,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 23:39:14,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 23:39:14,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 23:39:14,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 23:39:14,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 23:39:14,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 23:39:14,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 23:39:14,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 23:39:14,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 23:39:14,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 23:39:14,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 23:39:14,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 23:39:14,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 23:39:14,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 23:39:14,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:39:14,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 23:39:14,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 23:39:14,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 23:39:14,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 23:39:14,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:14,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 23:39:14,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 23:39:14,072 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 23:39:14,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 23:39:14,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 23:39:14,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 23:39:14,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 23:39:14,406 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 23:39:14,407 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt7.c [2020-07-21 23:39:14,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/051c84c0f/481b0c9f70734709831d734aeacf9245/FLAG7b9894aa3 [2020-07-21 23:39:14,950 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 23:39:14,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt7.c [2020-07-21 23:39:14,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/051c84c0f/481b0c9f70734709831d734aeacf9245/FLAG7b9894aa3 [2020-07-21 23:39:15,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/051c84c0f/481b0c9f70734709831d734aeacf9245 [2020-07-21 23:39:15,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 23:39:15,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 23:39:15,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 23:39:15,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 23:39:15,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 23:39:15,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2723a77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15, skipping insertion in model container [2020-07-21 23:39:15,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 23:39:15,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 23:39:15,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:39:15,534 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 23:39:15,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:39:15,576 INFO L208 MainTranslator]: Completed translation [2020-07-21 23:39:15,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15 WrapperNode [2020-07-21 23:39:15,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 23:39:15,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 23:39:15,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 23:39:15,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 23:39:15,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (1/1) ... [2020-07-21 23:39:15,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 23:39:15,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 23:39:15,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 23:39:15,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 23:39:15,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (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 23:39:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 23:39:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 23:39:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 23:39:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 23:39:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 23:39:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 23:39:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 23:39:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 23:39:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 23:39:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 23:39:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 23:39:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 23:39:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 23:39:16,090 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 23:39:16,090 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 23:39:16,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:39:16 BoogieIcfgContainer [2020-07-21 23:39:16,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 23:39:16,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 23:39:16,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 23:39:16,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 23:39:16,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:39:15" (1/3) ... [2020-07-21 23:39:16,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40514f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:39:16, skipping insertion in model container [2020-07-21 23:39:16,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:39:15" (2/3) ... [2020-07-21 23:39:16,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40514f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:39:16, skipping insertion in model container [2020-07-21 23:39:16,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:39:16" (3/3) ... [2020-07-21 23:39:16,104 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt7.c [2020-07-21 23:39:16,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 23:39:16,127 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 23:39:16,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 23:39:16,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 23:39:16,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 23:39:16,175 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 23:39:16,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 23:39:16,175 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 23:39:16,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 23:39:16,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 23:39:16,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 23:39:16,232 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-21 23:39:16,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 23:39:16,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:39:16,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:39:16,255 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:39:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:39:16,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1473118151, now seen corresponding path program 1 times [2020-07-21 23:39:16,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:39:16,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498308319] [2020-07-21 23:39:16,298 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 23:39:16,385 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:39:16,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:39:16,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 23:39:16,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:39:16,609 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 23:39:16,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:39:16,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498308319] [2020-07-21 23:39:16,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:39:16,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 23:39:16,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650040434] [2020-07-21 23:39:16,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 23:39:16,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:39:16,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 23:39:16,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 23:39:16,639 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 7 states. [2020-07-21 23:39:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:39:16,880 INFO L93 Difference]: Finished difference Result 68 states and 99 transitions. [2020-07-21 23:39:16,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 23:39:16,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-21 23:39:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:39:16,894 INFO L225 Difference]: With dead ends: 68 [2020-07-21 23:39:16,895 INFO L226 Difference]: Without dead ends: 37 [2020-07-21 23:39:16,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-21 23:39:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-21 23:39:16,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-21 23:39:16,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-21 23:39:16,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2020-07-21 23:39:16,948 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 14 [2020-07-21 23:39:16,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:39:16,949 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2020-07-21 23:39:16,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 23:39:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2020-07-21 23:39:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 23:39:16,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:39:16,951 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:39:17,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:17,162 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:39:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:39:17,164 INFO L82 PathProgramCache]: Analyzing trace with hash 633537884, now seen corresponding path program 1 times [2020-07-21 23:39:17,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:39:17,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333006112] [2020-07-21 23:39:17,165 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 23:39:17,219 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:39:17,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:39:17,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 23:39:17,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:39:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:39:17,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:39:17,468 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:39:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 23:39:17,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333006112] [2020-07-21 23:39:17,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:39:17,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2020-07-21 23:39:17,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828759127] [2020-07-21 23:39:17,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:39:17,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:39:17,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:39:17,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-07-21 23:39:17,651 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 6 states. [2020-07-21 23:39:32,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:39:32,327 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-07-21 23:39:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 23:39:32,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-21 23:39:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:39:32,331 INFO L225 Difference]: With dead ends: 52 [2020-07-21 23:39:32,331 INFO L226 Difference]: Without dead ends: 50 [2020-07-21 23:39:32,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-21 23:39:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-21 23:39:32,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-07-21 23:39:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-21 23:39:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-07-21 23:39:32,358 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 27 [2020-07-21 23:39:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:39:32,359 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-07-21 23:39:32,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:39:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-07-21 23:39:32,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-21 23:39:32,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:39:32,361 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:39:32,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:32,564 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:39:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:39:32,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1461697819, now seen corresponding path program 1 times [2020-07-21 23:39:32,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:39:32,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963313285] [2020-07-21 23:39:32,567 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 23:39:32,615 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:39:32,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:39:32,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-21 23:39:32,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:39:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 23:39:32,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:39:32,936 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:39:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 23:39:33,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963313285] [2020-07-21 23:39:33,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:39:33,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2020-07-21 23:39:33,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527634062] [2020-07-21 23:39:33,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:39:33,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:39:33,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:39:33,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-07-21 23:39:33,650 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 6 states. [2020-07-21 23:39:54,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:39:54,484 INFO L93 Difference]: Finished difference Result 78 states and 102 transitions. [2020-07-21 23:39:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 23:39:54,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-07-21 23:39:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:39:54,549 INFO L225 Difference]: With dead ends: 78 [2020-07-21 23:39:54,549 INFO L226 Difference]: Without dead ends: 76 [2020-07-21 23:39:54,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-07-21 23:39:54,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-21 23:39:54,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-21 23:39:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-21 23:39:54,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 100 transitions. [2020-07-21 23:39:54,562 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 100 transitions. Word has length 36 [2020-07-21 23:39:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:39:54,563 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 100 transitions. [2020-07-21 23:39:54,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:39:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2020-07-21 23:39:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-21 23:39:54,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:39:54,564 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:39:54,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:54,768 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:39:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:39:54,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1151779408, now seen corresponding path program 1 times [2020-07-21 23:39:54,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:39:54,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473779219] [2020-07-21 23:39:54,771 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:39:54,835 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:39:54,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:39:54,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-21 23:39:54,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:39:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 23:39:55,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:39:55,175 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 23:39:55,175 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:39:55,227 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:39:55,228 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:39:55,231 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:40:18,089 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:40:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 2 refuted. 8 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 23:40:53,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473779219] [2020-07-21 23:40:53,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:40:53,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2020-07-21 23:40:53,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702829332] [2020-07-21 23:40:53,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-21 23:40:53,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:40:53,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-21 23:40:53,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=199, Unknown=28, NotChecked=0, Total=306 [2020-07-21 23:40:53,356 INFO L87 Difference]: Start difference. First operand 76 states and 100 transitions. Second operand 18 states. [2020-07-21 23:40:55,666 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_main_~l~0 1))) (let ((.cse2 (mod .cse3 4294967296)) (.cse0 (< 0 (mod (mod (mod .cse3 4294967296) 5) 4294967296))) (.cse1 (= 0 (mod (mod (mod .cse3 4294967296) 7) 4294967296)))) (and (or .cse0 .cse1 (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0) 4294967296) .cse2))) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 5) 4294967296)) (or (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 1) 4294967296) .cse2)) .cse0 .cse1)))) is different from false [2020-07-21 23:40:57,774 WARN L838 $PredicateComparison]: unable to prove that (and (or (= 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 5) 4294967296))) (let ((.cse0 (+ c_main_~l~0 1))) (or (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 1) 4294967296) (mod .cse0 4294967296))) (< 0 (mod (mod (mod .cse0 4294967296) 5) 4294967296)) (= 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296))))) is different from false [2020-07-21 23:40:59,845 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 5) 4294967296)) (let ((.cse0 (+ c_main_~l~0 1))) (or (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 1) 4294967296) (mod .cse0 4294967296))) (< 0 (mod (mod (mod .cse0 4294967296) 5) 4294967296)) (= 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296))))) is different from false [2020-07-21 23:41:37,155 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (+ c_main_~l~0 1))) (or (< 0 (mod (mod (mod .cse0 4294967296) 5) 4294967296)) (= 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296)) (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0) 4294967296) (mod .cse0 4294967296))))) (let ((.cse1 (+ c_main_~l~0 2))) (or (< 0 (mod (mod (mod .cse1 4294967296) 5) 4294967296)) (= 0 (mod (mod (mod .cse1 4294967296) 7) 4294967296)) (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 1) 4294967296) (mod .cse1 4294967296)))))) is different from false [2020-07-21 23:41:39,233 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (+ c_main_~l~0 1))) (or (< 0 (mod (mod (mod .cse0 4294967296) 5) 4294967296)) (= 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296)) (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0) 4294967296) (mod .cse0 4294967296))))) (let ((.cse1 (+ c_main_~l~0 2))) (or (< 0 (mod (mod (mod .cse1 4294967296) 5) 4294967296)) (= 0 (mod (mod (mod .cse1 4294967296) 7) 4294967296)) (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~k~0 c_main_~v1~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 1) 4294967296) (mod .cse1 4294967296)))))) is different from true [2020-07-21 23:44:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:44:19,884 INFO L93 Difference]: Finished difference Result 121 states and 168 transitions. [2020-07-21 23:44:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 23:44:19,944 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 37 [2020-07-21 23:44:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:44:19,946 INFO L225 Difference]: With dead ends: 121 [2020-07-21 23:44:19,946 INFO L226 Difference]: Without dead ends: 67 [2020-07-21 23:44:19,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=92, Invalid=233, Unknown=33, NotChecked=148, Total=506 [2020-07-21 23:44:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-21 23:44:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-07-21 23:44:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-07-21 23:44:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2020-07-21 23:44:19,968 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 37 [2020-07-21 23:44:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:44:19,969 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2020-07-21 23:44:19,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-21 23:44:19,969 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2020-07-21 23:44:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-21 23:44:19,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:44:19,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:44:20,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:44:20,188 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:44:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:44:20,189 INFO L82 PathProgramCache]: Analyzing trace with hash 782958555, now seen corresponding path program 1 times [2020-07-21 23:44:20,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:44:20,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526558964] [2020-07-21 23:44:20,190 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:44:20,242 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:44:20,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:44:20,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-21 23:44:20,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:44:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 23:44:20,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:44:20,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:44:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 8 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 23:44:43,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526558964] [2020-07-21 23:44:43,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:44:43,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2020-07-21 23:44:43,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16799459] [2020-07-21 23:44:43,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 23:44:43,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:44:43,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 23:44:43,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=185, Unknown=7, NotChecked=0, Total=240 [2020-07-21 23:44:43,542 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 16 states. [2020-07-21 23:44:50,113 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2020-07-21 23:45:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:45:37,943 INFO L93 Difference]: Finished difference Result 96 states and 125 transitions. [2020-07-21 23:45:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 23:45:38,015 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2020-07-21 23:45:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:45:38,016 INFO L225 Difference]: With dead ends: 96 [2020-07-21 23:45:38,016 INFO L226 Difference]: Without dead ends: 74 [2020-07-21 23:45:38,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=59, Invalid=238, Unknown=9, NotChecked=0, Total=306 [2020-07-21 23:45:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-21 23:45:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2020-07-21 23:45:38,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-21 23:45:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2020-07-21 23:45:38,029 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 40 [2020-07-21 23:45:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:45:38,029 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2020-07-21 23:45:38,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 23:45:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2020-07-21 23:45:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 23:45:38,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:45:38,031 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:45:38,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:45:38,234 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:45:38,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:45:38,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1571070263, now seen corresponding path program 1 times [2020-07-21 23:45:38,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:45:38,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991223131] [2020-07-21 23:45:38,236 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:45:38,295 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:45:38,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:45:38,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-21 23:45:38,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:45:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 23:45:38,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:45:38,685 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:47:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 11 proven. 0 refuted. 53 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 23:47:04,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991223131] [2020-07-21 23:47:04,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:47:04,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2020-07-21 23:47:04,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618873977] [2020-07-21 23:47:04,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-21 23:47:04,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:47:04,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-21 23:47:04,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=490, Unknown=37, NotChecked=0, Total=650 [2020-07-21 23:47:04,143 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand 26 states. [2020-07-21 23:47:27,368 WARN L193 SmtUtils]: Spent 6.20 s on a formula simplification that was a NOOP. DAG size: 31 [2020-07-21 23:47:50,386 WARN L193 SmtUtils]: Spent 6.19 s on a formula simplification that was a NOOP. DAG size: 31 [2020-07-21 23:48:19,346 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 23:49:13,325 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 23:49:52,734 WARN L193 SmtUtils]: Spent 6.19 s on a formula simplification that was a NOOP. DAG size: 31 [2020-07-21 23:49:52,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:49:52,736 INFO L93 Difference]: Finished difference Result 113 states and 145 transitions. [2020-07-21 23:49:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 23:49:52,736 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 61 [2020-07-21 23:49:52,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:49:52,737 INFO L225 Difference]: With dead ends: 113 [2020-07-21 23:49:52,737 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:49:52,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 199.9s TimeCoverageRelationStatistics Valid=192, Invalid=724, Unknown=76, NotChecked=0, Total=992 [2020-07-21 23:49:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:49:52,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:49:52,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:49:52,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:49:52,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-07-21 23:49:52,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:49:52,740 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:49:52,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-21 23:49:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:49:52,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:49:52,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:49:52,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:51:08,399 WARN L193 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 144 DAG size of output: 25 [2020-07-21 23:51:08,459 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:51:08,459 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:51:08,460 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 23:51:08,460 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-21 23:51:08,460 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L31-2(lines 21 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L27(lines 27 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L25(lines 25 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 39) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L23(lines 23 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L21(lines 21 34) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 37) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 39) no Hoare annotation was computed. [2020-07-21 23:51:08,461 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= (mod main_~l~0 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0) 4294967296)) [2020-07-21 23:51:08,462 INFO L264 CegarLoopResult]: At program point L36-1(lines 19 37) the Hoare annotation is: (and (= (mod (+ main_~l~0 5) 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 5) 4294967296)) (= (mod (+ main_~l~0 1) 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 1) 4294967296))) [2020-07-21 23:51:08,462 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 39) the Hoare annotation is: true [2020-07-21 23:51:08,462 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-21 23:51:08,462 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-21 23:51:08,462 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-21 23:51:08,462 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-21 23:51:08,462 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-21 23:51:08,462 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-21 23:51:08,462 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-21 23:51:08,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:51:08 BoogieIcfgContainer [2020-07-21 23:51:08,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:51:08,482 INFO L168 Benchmark]: Toolchain (without parser) took 713168.16 ms. Allocated memory was 147.8 MB in the beginning and 249.6 MB in the end (delta: 101.7 MB). Free memory was 105.7 MB in the beginning and 122.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-07-21 23:51:08,484 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 23:51:08,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.97 ms. Allocated memory is still 147.8 MB. Free memory was 105.5 MB in the beginning and 95.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-21 23:51:08,486 INFO L168 Benchmark]: Boogie Preprocessor took 148.66 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 95.5 MB in the beginning and 183.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:51:08,490 INFO L168 Benchmark]: RCFGBuilder took 367.15 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 168.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-07-21 23:51:08,492 INFO L168 Benchmark]: TraceAbstraction took 712381.53 ms. Allocated memory was 205.0 MB in the beginning and 249.6 MB in the end (delta: 44.6 MB). Free memory was 168.0 MB in the beginning and 122.9 MB in the end (delta: 45.1 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2020-07-21 23:51:08,499 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.97 ms. Allocated memory is still 147.8 MB. Free memory was 105.5 MB in the beginning and 95.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.66 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 95.5 MB in the beginning and 183.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.15 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 168.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 712381.53 ms. Allocated memory was 205.0 MB in the beginning and 249.6 MB in the end (delta: 44.6 MB). Free memory was 168.0 MB in the beginning and 122.9 MB in the end (delta: 45.1 MB). Peak memory consumption was 89.7 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: (l + 5) % 4294967296 == (i + j + k + v1 + v2 + v3 + v4 + 5) % 4294967296 && (l + 1) % 4294967296 == (i + j + k + v1 + v2 + v3 + v4 + 1) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 636.7s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 465.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 75.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 88 SDtfs, 221 SDslu, 570 SDs, 0 SdLazy, 1403 SolverSat, 128 SolverUnsat, 159 SolverUnknown, 0 SolverNotchecked, 320.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 314 SyntacticMatches, 21 SemanticMatches, 95 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 303.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=3, 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 22 PreInvPairs, 37 NumberOfFragments, 54 HoareAnnotationTreeSize, 22 FomulaSimplifications, 130 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1215 FormulaSimplificationTreeSizeReductionInter, 75.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 169.3s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 214852 SizeOfPredicates, 19 NumberOfNonLiveVariables, 520 ConjunctsInSsa, 182 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 153/324 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...