/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 23:02:28,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 23:02:28,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 23:02:29,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 23:02:29,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 23:02:29,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 23:02:29,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 23:02:29,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 23:02:29,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 23:02:29,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 23:02:29,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 23:02:29,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 23:02:29,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 23:02:29,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 23:02:29,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 23:02:29,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 23:02:29,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 23:02:29,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 23:02:29,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 23:02:29,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 23:02:29,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 23:02:29,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 23:02:29,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 23:02:29,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 23:02:29,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 23:02:29,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 23:02:29,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 23:02:29,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 23:02:29,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 23:02:29,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 23:02:29,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 23:02:29,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 23:02:29,107 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 23:02:29,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 23:02:29,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 23:02:29,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 23:02:29,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 23:02:29,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 23:02:29,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 23:02:29,108 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 23:02:29,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 23:02:29,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 23:02:29,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 23:02:29,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 23:02:29,109 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 23:02:29,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 23:02:29,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 23:02:29,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 23:02:29,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 23:02:29,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 23:02:29,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 23:02:29,115 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 23:02:29,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 23:02:29,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 23:02:29,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 23:02:29,409 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 23:02:29,410 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 23:02:29,411 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-08-22 23:02:29,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e733c5637/a60506ee42e74ee093ccbc6a722954a0/FLAGa0fab7752 [2020-08-22 23:02:29,994 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 23:02:29,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2020-08-22 23:02:30,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e733c5637/a60506ee42e74ee093ccbc6a722954a0/FLAGa0fab7752 [2020-08-22 23:02:30,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e733c5637/a60506ee42e74ee093ccbc6a722954a0 [2020-08-22 23:02:30,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 23:02:30,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 23:02:30,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 23:02:30,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 23:02:30,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 23:02:30,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332a01aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30, skipping insertion in model container [2020-08-22 23:02:30,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 23:02:30,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 23:02:30,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:02:30,634 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 23:02:30,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 23:02:30,685 INFO L208 MainTranslator]: Completed translation [2020-08-22 23:02:30,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30 WrapperNode [2020-08-22 23:02:30,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 23:02:30,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 23:02:30,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 23:02:30,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 23:02:30,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (1/1) ... [2020-08-22 23:02:30,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 23:02:30,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 23:02:30,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 23:02:30,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 23:02:30,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (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 [2020-08-22 23:02:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 23:02:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 23:02:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 23:02:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 23:02:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 23:02:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 23:02:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 23:02:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 23:02:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 23:02:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 23:02:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 23:02:31,226 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 23:02:31,226 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 23:02:31,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:02:31 BoogieIcfgContainer [2020-08-22 23:02:31,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 23:02:31,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 23:02:31,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 23:02:31,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 23:02:31,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 11:02:30" (1/3) ... [2020-08-22 23:02:31,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6938350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:02:31, skipping insertion in model container [2020-08-22 23:02:31,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 11:02:30" (2/3) ... [2020-08-22 23:02:31,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6938350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 11:02:31, skipping insertion in model container [2020-08-22 23:02:31,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 11:02:31" (3/3) ... [2020-08-22 23:02:31,241 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2020-08-22 23:02:31,252 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 23:02:31,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 23:02:31,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 23:02:31,299 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 23:02:31,299 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 23:02:31,299 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 23:02:31,300 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 23:02:31,300 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 23:02:31,300 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 23:02:31,300 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 23:02:31,300 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 23:02:31,315 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-08-22 23:02:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 23:02:31,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:02:31,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:02:31,326 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:02:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:02:31,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1727331883, now seen corresponding path program 1 times [2020-08-22 23:02:31,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:02:31,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670544560] [2020-08-22 23:02:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:02:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:31,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:02:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 23:02:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:31,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 23:02:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 23:02:31,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670544560] [2020-08-22 23:02:31,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:02:31,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 23:02:31,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661792992] [2020-08-22 23:02:31,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 23:02:31,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:02:31,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 23:02:31,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 23:02:31,737 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 9 states. [2020-08-22 23:02:32,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:02:32,318 INFO L93 Difference]: Finished difference Result 137 states and 170 transitions. [2020-08-22 23:02:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 23:02:32,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-08-22 23:02:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:02:32,333 INFO L225 Difference]: With dead ends: 137 [2020-08-22 23:02:32,334 INFO L226 Difference]: Without dead ends: 79 [2020-08-22 23:02:32,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-08-22 23:02:32,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-08-22 23:02:32,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2020-08-22 23:02:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-22 23:02:32,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2020-08-22 23:02:32,402 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 30 [2020-08-22 23:02:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:02:32,403 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2020-08-22 23:02:32,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 23:02:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2020-08-22 23:02:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-22 23:02:32,407 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:02:32,408 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:02:32,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 23:02:32,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:02:32,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:02:32,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1086220015, now seen corresponding path program 1 times [2020-08-22 23:02:32,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:02:32,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734939219] [2020-08-22 23:02:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:02:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:02:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 23:02:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 23:02:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 23:02:32,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734939219] [2020-08-22 23:02:32,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:02:32,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 23:02:32,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527401011] [2020-08-22 23:02:32,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 23:02:32,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:02:32,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 23:02:32,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 23:02:32,510 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 4 states. [2020-08-22 23:02:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:02:32,671 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2020-08-22 23:02:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 23:02:32,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-08-22 23:02:32,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:02:32,674 INFO L225 Difference]: With dead ends: 91 [2020-08-22 23:02:32,674 INFO L226 Difference]: Without dead ends: 72 [2020-08-22 23:02:32,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 23:02:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-08-22 23:02:32,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2020-08-22 23:02:32,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-22 23:02:32,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-08-22 23:02:32,690 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 34 [2020-08-22 23:02:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:02:32,691 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-08-22 23:02:32,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 23:02:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-08-22 23:02:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 23:02:32,693 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:02:32,694 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:02:32,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 23:02:32,694 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:02:32,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:02:32,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1811286385, now seen corresponding path program 1 times [2020-08-22 23:02:32,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:02:32,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507665270] [2020-08-22 23:02:32,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:02:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:02:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 23:02:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:32,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 23:02:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:33,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 23:02:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:33,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 23:02:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 23:02:33,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507665270] [2020-08-22 23:02:33,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 23:02:33,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 23:02:33,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539653061] [2020-08-22 23:02:33,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 23:02:33,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:02:33,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 23:02:33,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-08-22 23:02:33,058 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 12 states. [2020-08-22 23:02:33,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:02:33,588 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2020-08-22 23:02:33,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 23:02:33,589 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2020-08-22 23:02:33,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:02:33,592 INFO L225 Difference]: With dead ends: 84 [2020-08-22 23:02:33,593 INFO L226 Difference]: Without dead ends: 82 [2020-08-22 23:02:33,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-08-22 23:02:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-08-22 23:02:33,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 59. [2020-08-22 23:02:33,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-22 23:02:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2020-08-22 23:02:33,627 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 52 [2020-08-22 23:02:33,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:02:33,629 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2020-08-22 23:02:33,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 23:02:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2020-08-22 23:02:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-22 23:02:33,634 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:02:33,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:02:33,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 23:02:33,636 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:02:33,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:02:33,648 INFO L82 PathProgramCache]: Analyzing trace with hash 2082234165, now seen corresponding path program 1 times [2020-08-22 23:02:33,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:02:33,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708925728] [2020-08-22 23:02:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:02:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:34,426 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 49 [2020-08-22 23:02:34,679 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 62 [2020-08-22 23:02:37,212 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 136 DAG size of output: 70 [2020-08-22 23:02:38,054 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-08-22 23:02:39,954 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 145 DAG size of output: 79 [2020-08-22 23:02:40,380 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 61 [2020-08-22 23:02:40,807 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 62 [2020-08-22 23:02:41,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:02:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:41,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 23:02:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:41,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 23:02:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:41,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 23:02:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:41,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 23:02:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 23:02:41,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708925728] [2020-08-22 23:02:41,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:02:41,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-08-22 23:02:41,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052765699] [2020-08-22 23:02:41,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 23:02:41,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:02:41,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 23:02:41,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-08-22 23:02:41,390 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 18 states. [2020-08-22 23:02:42,511 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-08-22 23:02:47,152 WARN L193 SmtUtils]: Spent 4.53 s on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2020-08-22 23:02:47,612 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-08-22 23:02:50,053 WARN L193 SmtUtils]: Spent 2.31 s on a formula simplification that was a NOOP. DAG size: 114 [2020-08-22 23:02:50,377 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-08-22 23:02:50,552 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-08-22 23:02:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:02:50,912 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2020-08-22 23:02:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 23:02:50,916 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2020-08-22 23:02:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:02:50,918 INFO L225 Difference]: With dead ends: 73 [2020-08-22 23:02:50,918 INFO L226 Difference]: Without dead ends: 71 [2020-08-22 23:02:50,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2020-08-22 23:02:50,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-08-22 23:02:50,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2020-08-22 23:02:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-22 23:02:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2020-08-22 23:02:50,936 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 56 [2020-08-22 23:02:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:02:50,937 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2020-08-22 23:02:50,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 23:02:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2020-08-22 23:02:50,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-08-22 23:02:50,938 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 23:02:50,939 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 23:02:50,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 23:02:50,939 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 23:02:50,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 23:02:50,940 INFO L82 PathProgramCache]: Analyzing trace with hash -261126320, now seen corresponding path program 1 times [2020-08-22 23:02:50,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 23:02:50,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369941968] [2020-08-22 23:02:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 23:02:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 23:02:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 23:02:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 23:02:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 23:02:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 23:02:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 23:02:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 23:02:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-22 23:02:51,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369941968] [2020-08-22 23:02:51,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 23:02:51,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 23:02:51,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353210896] [2020-08-22 23:02:51,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 23:02:51,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 23:02:51,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 23:02:51,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-08-22 23:02:51,391 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 12 states. [2020-08-22 23:02:52,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 23:02:52,563 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2020-08-22 23:02:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 23:02:52,567 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-08-22 23:02:52,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 23:02:52,568 INFO L225 Difference]: With dead ends: 87 [2020-08-22 23:02:52,568 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 23:02:52,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2020-08-22 23:02:52,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 23:02:52,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 23:02:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 23:02:52,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 23:02:52,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2020-08-22 23:02:52,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 23:02:52,571 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 23:02:52,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 23:02:52,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 23:02:52,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 23:02:52,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 23:02:52,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 23:02:53,008 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39 [2020-08-22 23:02:53,228 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 41 [2020-08-22 23:02:55,773 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-08-22 23:02:55,970 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-08-22 23:02:56,124 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-08-22 23:02:56,524 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 71 [2020-08-22 23:02:56,906 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 58 [2020-08-22 23:02:57,077 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-08-22 23:02:58,592 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 137 DAG size of output: 72 [2020-08-22 23:03:03,485 WARN L193 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2020-08-22 23:03:03,678 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2020-08-22 23:03:04,009 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-08-22 23:03:04,015 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,015 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,015 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,016 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 23:03:04,016 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,016 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,016 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,016 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,017 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 23:03:04,017 INFO L271 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 9 11) the Hoare annotation is: true [2020-08-22 23:03:04,017 INFO L264 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2020-08-22 23:03:04,017 INFO L264 CegarLoopResult]: At program point L10-1(line 10) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2020-08-22 23:03:04,017 INFO L264 CegarLoopResult]: At program point L10-3(lines 9 11) the Hoare annotation is: (and (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) (not (= |assume_abort_if_not_#in~cond| 0))) [2020-08-22 23:03:04,018 INFO L264 CegarLoopResult]: At program point assume_abort_if_notEXIT(lines 9 11) the Hoare annotation is: (and (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) (not (= |assume_abort_if_not_#in~cond| 0))) [2020-08-22 23:03:04,018 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (= main_~loop_entered~0 0) [2020-08-22 23:03:04,018 INFO L271 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-08-22 23:03:04,018 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 22 50) the Hoare annotation is: true [2020-08-22 23:03:04,019 INFO L264 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (let ((.cse16 (div main_~index1~0 4294967296)) (.cse17 (div main_~index2~0 4294967296))) (let ((.cse14 (* 4294967296 .cse17)) (.cse15 (* 4294967296 .cse16))) (let ((.cse1 (+ .cse15 main_~index2~0 1)) (.cse0 (+ .cse14 main_~index1~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (let ((.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse12 (* .cse17 (- 17179869184))) (.cse13 (* main_~index2~0 4))) (let ((.cse4 (select .cse5 (+ .cse12 .cse13 |main_~#array~0.offset|))) (.cse6 (* .cse16 (- 17179869184))) (.cse7 (* main_~index1~0 4)) (.cse2 (+ .cse15 2147483647))) (or (and (<= main_~index1~0 .cse2) (<= (let ((.cse3 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4)) (and (let ((.cse9 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset| (- 17179869184))))) (let ((.cse8 (+ .cse14 2147483647)) (.cse11 (* .cse9 (- 1)))) (or (and (< .cse8 main_~index2~0) (let ((.cse10 (select .cse5 (+ .cse12 .cse13 |main_~#array~0.offset| (- 17179869184))))) (<= (+ .cse9 (* 4294967296 (div (+ .cse10 .cse11 4294967295) 4294967296))) .cse10))) (and (<= main_~index2~0 .cse8) (<= (+ .cse9 (* 4294967296 (div (+ .cse4 .cse11 4294967295) 4294967296))) .cse4))))) (< .cse2 main_~index1~0))))))))) [2020-08-22 23:03:04,019 INFO L264 CegarLoopResult]: At program point L44-1(line 44) the Hoare annotation is: (let ((.cse20 (div main_~index2~0 4294967296))) (let ((.cse14 (div main_~index1~0 4294967296)) (.cse19 (* 4294967296 .cse20))) (let ((.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse16 (* .cse20 (- 17179869184))) (.cse17 (* main_~index2~0 4)) (.cse18 (+ .cse19 2147483647)) (.cse13 (* 4294967296 .cse14))) (let ((.cse1 (+ .cse13 main_~index2~0 1)) (.cse0 (+ .cse19 main_~index1~0)) (.cse8 (< .cse18 main_~index2~0)) (.cse10 (select .cse5 (+ .cse16 .cse17 |main_~#array~0.offset| (- 17179869184)))) (.cse12 (<= main_~index2~0 .cse18)) (.cse4 (select .cse5 (+ .cse16 .cse17 |main_~#array~0.offset|)))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (let ((.cse6 (* .cse14 (- 17179869184))) (.cse7 (* main_~index1~0 4)) (.cse2 (+ .cse13 2147483647))) (or (and (<= main_~index1~0 .cse2) (<= (let ((.cse3 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4)) (and (let ((.cse9 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset| (- 17179869184))))) (let ((.cse11 (* .cse9 (- 1)))) (or (and .cse8 (<= (+ .cse9 (* 4294967296 (div (+ .cse10 .cse11 4294967295) 4294967296))) .cse10)) (and .cse12 (<= (+ .cse9 (* 4294967296 (div (+ .cse4 .cse11 4294967295) 4294967296))) .cse4))))) (< .cse2 main_~index1~0)))) (let ((.cse15 (* |main_#t~mem6| (- 1)))) (or (and .cse8 (<= (+ |main_#t~mem6| (* 4294967296 (div (+ .cse15 .cse10 4294967295) 4294967296))) .cse10)) (and .cse12 (<= (+ |main_#t~mem6| (* 4294967296 (div (+ .cse4 .cse15 4294967295) 4294967296))) .cse4))))))))) [2020-08-22 23:03:04,020 INFO L264 CegarLoopResult]: At program point L44-2(line 44) the Hoare annotation is: (let ((.cse22 (div main_~index2~0 4294967296))) (let ((.cse14 (div main_~index1~0 4294967296)) (.cse21 (* 4294967296 .cse22))) (let ((.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse18 (* .cse22 (- 17179869184))) (.cse19 (* main_~index2~0 4)) (.cse20 (+ .cse21 2147483647)) (.cse13 (* 4294967296 .cse14))) (let ((.cse1 (+ .cse13 main_~index2~0 1)) (.cse0 (+ .cse21 main_~index1~0)) (.cse16 (* 4294967296 (div |main_#t~mem6| 4294967296))) (.cse15 (+ |main_#t~mem6| (* 4294967296 (div |main_#t~mem7| 4294967296)))) (.cse8 (< .cse20 main_~index2~0)) (.cse10 (select .cse5 (+ .cse18 .cse19 |main_~#array~0.offset| (- 17179869184)))) (.cse12 (<= main_~index2~0 .cse20)) (.cse4 (select .cse5 (+ .cse18 .cse19 |main_~#array~0.offset|)))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (let ((.cse6 (* .cse14 (- 17179869184))) (.cse7 (* main_~index1~0 4)) (.cse2 (+ .cse13 2147483647))) (or (and (<= main_~index1~0 .cse2) (<= (let ((.cse3 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4)) (and (let ((.cse9 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset| (- 17179869184))))) (let ((.cse11 (* .cse9 (- 1)))) (or (and .cse8 (<= (+ .cse9 (* 4294967296 (div (+ .cse10 .cse11 4294967295) 4294967296))) .cse10)) (and .cse12 (<= (+ .cse9 (* 4294967296 (div (+ .cse4 .cse11 4294967295) 4294967296))) .cse4))))) (< .cse2 main_~index1~0)))) (< .cse15 (+ |main_#t~mem7| .cse16 1)) (<= (+ |main_#t~mem7| .cse16) .cse15) (let ((.cse17 (* |main_#t~mem6| (- 1)))) (or (and .cse8 (<= (+ |main_#t~mem6| (* 4294967296 (div (+ .cse17 .cse10 4294967295) 4294967296))) .cse10)) (and .cse12 (<= (+ |main_#t~mem6| (* 4294967296 (div (+ .cse4 .cse17 4294967295) 4294967296))) .cse4))))))))) [2020-08-22 23:03:04,020 INFO L264 CegarLoopResult]: At program point L44-3(line 44) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index1~0 4294967296))) (.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= (+ .cse0 main_~index1~0) (+ .cse1 main_~index2~0 1)) (<= (+ .cse1 1) main_~index1~0) (<= main_~index2~0 (+ .cse0 4294967294)))) [2020-08-22 23:03:04,020 INFO L264 CegarLoopResult]: At program point L44-4(line 44) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index1~0 4294967296))) (.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= (+ .cse0 main_~index1~0) (+ .cse1 main_~index2~0 1)) (<= (+ .cse1 1) main_~index1~0) (<= main_~index2~0 (+ .cse0 4294967294)))) [2020-08-22 23:03:04,020 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index2~0 4294967296))) (.cse0 (div main_~index1~0 4294967296))) (and (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* .cse0 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem2|) (<= main_~index2~0 (+ .cse1 99999)) (<= (+ .cse1 main_~index1~0 1) (+ (* 4294967296 .cse0) main_~index2~0)))) [2020-08-22 23:03:04,021 INFO L264 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse1 (div main_~index2~0 4294967296))) (let ((.cse0 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (* 4294967296 .cse1)) (.cse2 (div main_~index1~0 4294967296))) (and (= (select .cse0 (+ (* .cse1 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)) |main_#t~mem3|) (= (select .cse0 (+ (* .cse2 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem2|) (<= main_~index2~0 (+ .cse3 99999)) (<= (+ .cse3 main_~index1~0 1) (+ (* 4294967296 .cse2) main_~index2~0))))) [2020-08-22 23:03:04,021 INFO L264 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (let ((.cse3 (div main_~index1~0 4294967296)) (.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (select .cse5 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|))) (.cse1 (select .cse5 (+ (* .cse3 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|))) (.cse2 (* 4294967296 .cse4))) (and (= .cse0 |main_#t~mem3|) (= .cse1 |main_#t~mem2|) (<= (+ .cse0 (* 4294967296 (div (+ .cse1 (* .cse0 (- 1)) 4294967295) 4294967296))) .cse1) (<= main_~index2~0 (+ .cse2 99999)) (<= (+ .cse2 main_~index1~0 1) (+ (* 4294967296 .cse3) main_~index2~0))))) [2020-08-22 23:03:04,021 INFO L264 CegarLoopResult]: At program point L36-3(line 36) the Hoare annotation is: (let ((.cse3 (div main_~index2~0 4294967296)) (.cse2 (select |#memory_int| |main_~#array~0.base|)) (.cse5 (div main_~index1~0 4294967296))) (let ((.cse0 (select .cse2 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|))) (.cse4 (* 4294967296 .cse3))) (and (= .cse0 |main_#t~mem2|) (<= (let ((.cse1 (select .cse2 (+ (* .cse3 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse0 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse0) (<= main_~index2~0 (+ .cse4 99999)) (<= (+ .cse4 main_~index1~0 1) (+ (* 4294967296 .cse5) main_~index2~0))))) [2020-08-22 23:03:04,021 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (= main_~loop_entered~0 0) [2020-08-22 23:03:04,021 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-08-22 23:03:04,022 INFO L271 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: true [2020-08-22 23:03:04,022 INFO L264 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index1~0 4294967296))) (.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= (+ .cse0 main_~index1~0) (+ .cse1 main_~index2~0 1)) (<= (+ .cse1 1) main_~index1~0) (<= main_~index2~0 (+ .cse0 4294967294)))) [2020-08-22 23:03:04,022 INFO L264 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296))) (.cse1 (* 4294967296 (div main_~index1~0 4294967296)))) (and (<= (+ .cse0 main_~index1~0) (+ .cse1 main_~index2~0 1)) (<= (+ .cse1 1) main_~index1~0) (<= main_~index2~0 (+ .cse0 4294967294)) (<= (+ (* 4294967296 (div (+ |main_#t~post8| 1) 4294967296)) main_~index1~0) (+ |main_#t~post8| .cse1 1)))) [2020-08-22 23:03:04,022 INFO L264 CegarLoopResult]: At program point L45-2(line 45) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index1~0 4294967296)))) (and (<= (+ .cse0 1) main_~index1~0) (<= (+ (* 4294967296 (div main_~index2~0 4294967296)) main_~index1~0) (+ .cse0 main_~index2~0)) (<= (+ (* 4294967296 (div (+ |main_#t~post8| 1) 4294967296)) main_~index1~0) (+ |main_#t~post8| .cse0 1)))) [2020-08-22 23:03:04,022 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (let ((.cse3 (div main_~index2~0 4294967296))) (let ((.cse5 (* 4294967296 .cse3)) (.cse4 (div main_~index1~0 4294967296))) (and (let ((.cse2 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse2 (+ (* .cse4 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse0 (select .cse2 (+ (* .cse3 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse0 (* 4294967296 (div (+ .cse1 (* .cse0 (- 1)) 4294967295) 4294967296)))) .cse1))) (<= main_~index2~0 (+ .cse5 99999)) (<= (+ .cse5 main_~index1~0 1) (+ (* 4294967296 .cse4) main_~index2~0))))) [2020-08-22 23:03:04,022 INFO L264 CegarLoopResult]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse0 (div main_~index2~0 4294967296))) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|)) (.cse8 (* .cse0 (- 17179869184))) (.cse9 (* main_~index2~0 4))) (let ((.cse1 (select .cse4 (+ .cse8 .cse9 |main_~#array~0.offset|)))) (let ((.cse3 (* .cse1 (- 1))) (.cse6 (* 4294967296 .cse0)) (.cse5 (div main_~index1~0 4294967296))) (and (<= (* 4294967296 (div (+ (* .cse0 4294967296) |main_#t~post4| (* main_~index2~0 (- 1)) 4294967296) 4294967296)) |main_#t~post4|) (let ((.cse2 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ .cse1 (* 4294967296 (div (+ .cse2 .cse3 4294967295) 4294967296))) .cse2)) (<= main_~index2~0 (+ .cse6 99999)) (or (let ((.cse7 (select .cse4 (+ .cse8 .cse9 |main_~#array~0.offset| (- 4))))) (<= .cse7 (+ (* 4294967296 (div (+ .cse3 .cse7) 4294967296)) .cse1))) (< (+ .cse6 |main_#t~post4| 1) (+ (* 4294967296 (div |main_#t~post4| 4294967296)) main_~index2~0))) (<= (+ .cse6 main_~index1~0 1) (+ (* 4294967296 .cse5) main_~index2~0))))))) [2020-08-22 23:03:04,023 INFO L264 CegarLoopResult]: At program point L37-2(line 37) the Hoare annotation is: (let ((.cse6 (div main_~index2~0 4294967296))) (let ((.cse2 (select |#memory_int| |main_~#array~0.base|)) (.cse10 (* .cse6 (- 17179869184))) (.cse5 (* main_~index2~0 4)) (.cse3 (div main_~index1~0 4294967296))) (let ((.cse7 (* 4294967296 .cse3)) (.cse1 (select .cse2 (+ .cse10 .cse5 |main_~#array~0.offset| (- 4)))) (.cse8 (* 4294967296 .cse6))) (and (let ((.cse4 (* main_~index1~0 4))) (or (<= (let ((.cse0 (select .cse2 (+ (* .cse3 (- 17179869184)) .cse4 |main_~#array~0.offset|)))) (+ .cse0 (* 4294967296 (div (+ (* .cse0 (- 1)) .cse1 4294967295) 4294967296)))) .cse1) (not (= (+ (* .cse3 17179869184) .cse5) (+ (* .cse6 17179869184) .cse4))))) (<= (* 4294967296 (div (+ (* .cse6 4294967296) |main_#t~post4| (* main_~index2~0 (- 1)) 4294967296) 4294967296)) |main_#t~post4|) (<= (+ .cse7 1) main_~index1~0) (<= (+ .cse8 main_~index1~0) (+ .cse7 main_~index2~0)) (<= main_~index2~0 (+ .cse8 99999)) (or (<= .cse1 (let ((.cse9 (select .cse2 (+ .cse10 .cse5 |main_~#array~0.offset|)))) (+ (* 4294967296 (div (+ (* .cse9 (- 1)) .cse1) 4294967296)) .cse9))) (< (+ .cse8 |main_#t~post4| 1) (+ (* 4294967296 (div |main_#t~post4| 4294967296)) main_~index2~0))))))) [2020-08-22 23:03:04,023 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (= main_~loop_entered~0 0) [2020-08-22 23:03:04,023 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (= main_~loop_entered~0 0) [2020-08-22 23:03:04,023 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index1~0 4294967296)))) (and (<= (+ .cse0 1) main_~index1~0) (<= (+ (* 4294967296 (div main_~index2~0 4294967296)) main_~index1~0) (+ .cse0 main_~index2~0)))) [2020-08-22 23:03:04,023 INFO L264 CegarLoopResult]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index1~0 4294967296)))) (and (<= (+ .cse0 1) main_~index1~0) (<= (+ (* 4294967296 (div main_~index2~0 4294967296)) main_~index1~0) (+ .cse0 main_~index2~0)) (<= (+ |main_#t~post9| (* 4294967296 (div (+ (* (div (+ |main_#t~post9| (- 1)) 4294967296) (- 4294967296)) main_~index2~0) 4294967296))) main_~index2~0))) [2020-08-22 23:03:04,023 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 22 50) the Hoare annotation is: true [2020-08-22 23:03:04,024 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: (and (<= (+ (* 4294967296 (div main_~index2~0 4294967296)) main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)) (<= (+ |main_#t~post9| (* 4294967296 (div (+ (* (div (+ |main_#t~post9| (- 1)) 4294967296) (- 4294967296)) main_~index2~0) 4294967296))) main_~index2~0)) [2020-08-22 23:03:04,024 INFO L271 CegarLoopResult]: At program point L42(lines 42 48) the Hoare annotation is: true [2020-08-22 23:03:04,024 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296)) (.cse3 (div main_~index1~0 4294967296))) (let ((.cse7 (* 4294967296 .cse3)) (.cse8 (* 4294967296 .cse5))) (and (let ((.cse6 (* main_~index2~0 4)) (.cse4 (* main_~index1~0 4))) (or (let ((.cse2 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse2 (+ (* .cse5 (- 17179869184)) .cse6 |main_~#array~0.offset| (- 4))))) (<= (let ((.cse0 (select .cse2 (+ (* .cse3 (- 17179869184)) .cse4 |main_~#array~0.offset|)))) (+ .cse0 (* 4294967296 (div (+ (* .cse0 (- 1)) .cse1 4294967295) 4294967296)))) .cse1))) (not (= (+ (* .cse3 17179869184) .cse6) (+ (* .cse5 17179869184) .cse4))))) (<= (+ .cse7 1) main_~index1~0) (<= (+ .cse8 main_~index1~0) (+ .cse7 main_~index2~0)) (<= main_~index2~0 (+ .cse8 99999))))) [2020-08-22 23:03:04,024 INFO L264 CegarLoopResult]: At program point L38-1(line 38) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse6 (div main_~index1~0 4294967296)) (.cse7 (* main_~index1~0 4))) (let ((.cse0 (select .cse3 (+ (* .cse6 (- 17179869184)) .cse7 |main_~#array~0.offset|))) (.cse4 (div main_~index2~0 4294967296))) (let ((.cse9 (* 4294967296 .cse4)) (.cse1 (* .cse0 (- 1))) (.cse8 (* 4294967296 .cse6))) (and (let ((.cse5 (* main_~index2~0 4))) (or (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) .cse5 |main_~#array~0.offset| (- 4))))) (<= (+ .cse0 (* 4294967296 (div (+ .cse1 .cse2 4294967295) 4294967296))) .cse2)) (not (= (+ (* .cse6 17179869184) .cse5) (+ (* .cse4 17179869184) .cse7))))) (<= |main_#t~post5| (+ (* 4294967296 (div (+ |main_#t~post5| (* .cse6 4294967296) (* main_~index1~0 (- 1))) 4294967296)) 4294967295)) (<= (+ .cse8 1) main_~index1~0) (<= (+ .cse9 main_~index1~0) (+ .cse8 main_~index2~0)) (<= main_~index2~0 (+ .cse9 99999)) (<= |main_#t~post5| (+ (* 4294967296 (div (+ |main_#t~post5| (- 1)) 4294967296)) 99999)) (let ((.cse11 (div |main_#t~post5| 4294967296))) (or (let ((.cse10 (select .cse3 (+ (* .cse11 (- 17179869184)) (* |main_#t~post5| 4) |main_~#array~0.offset| (- 4))))) (<= .cse10 (+ .cse0 (* 4294967296 (div (+ .cse1 .cse10) 4294967296))))) (< (+ (* 4294967296 .cse11) main_~index1~0) (+ |main_#t~post5| .cse8)))))))) [2020-08-22 23:03:04,024 INFO L264 CegarLoopResult]: At program point L38-2(line 38) the Hoare annotation is: (let ((.cse8 (div main_~index2~0 4294967296)) (.cse7 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (div main_~index1~0 4294967296))) (let ((.cse4 (select .cse7 (+ (* .cse3 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|))) (.cse2 (* 4294967296 .cse8))) (let ((.cse0 (+ .cse2 main_~index1~0)) (.cse5 (* .cse4 (- 1))) (.cse1 (* 4294967296 .cse3))) (and (<= .cse0 (+ .cse1 main_~index2~0 1)) (<= main_~index2~0 (+ .cse2 99998)) (<= |main_#t~post5| (+ (* 4294967296 (div (+ |main_#t~post5| (* .cse3 4294967296) (* main_~index1~0 (- 1))) 4294967296)) 4294967295)) (<= (+ .cse1 1) main_~index1~0) (or (let ((.cse6 (select .cse7 (+ (* .cse8 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= (+ .cse4 (* 4294967296 (div (+ .cse5 .cse6 4294967295) 4294967296))) .cse6)) (<= .cse0 (+ .cse1 main_~index2~0))) (<= |main_#t~post5| (+ (* 4294967296 (div (+ |main_#t~post5| (- 1)) 4294967296)) 99999)) (let ((.cse10 (div |main_#t~post5| 4294967296))) (or (let ((.cse9 (select .cse7 (+ (* .cse10 (- 17179869184)) (* |main_#t~post5| 4) |main_~#array~0.offset| (- 4))))) (<= .cse9 (+ .cse4 (* 4294967296 (div (+ .cse5 .cse9) 4294967296))))) (< (+ (* 4294967296 .cse10) main_~index1~0) (+ |main_#t~post5| .cse1)))))))) [2020-08-22 23:03:04,025 INFO L264 CegarLoopResult]: At program point L34-1(lines 32 40) the Hoare annotation is: (let ((.cse7 (div main_~index2~0 4294967296))) (let ((.cse2 (* 4294967296 .cse7))) (or (let ((.cse6 (div main_~index1~0 4294967296))) (let ((.cse0 (+ .cse2 main_~index1~0)) (.cse1 (* 4294967296 .cse6))) (and (<= .cse0 (+ .cse1 main_~index2~0 1)) (<= main_~index2~0 (+ .cse2 99998)) (<= (+ .cse1 1) main_~index1~0) (or (let ((.cse5 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse4 (select .cse5 (+ (* .cse7 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse3 (select .cse5 (+ (* .cse6 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4))) (<= .cse0 (+ .cse1 main_~index2~0)))))) (and (<= main_~index2~0 (+ .cse2 99999)) (= main_~loop_entered~0 0))))) [2020-08-22 23:03:04,025 INFO L264 CegarLoopResult]: At program point L34-2(lines 23 50) the Hoare annotation is: (or (let ((.cse7 (div main_~index2~0 4294967296))) (let ((.cse6 (div main_~index1~0 4294967296)) (.cse2 (* 4294967296 .cse7))) (let ((.cse0 (+ .cse2 main_~index1~0)) (.cse1 (* 4294967296 .cse6))) (and (<= .cse0 (+ .cse1 main_~index2~0 1)) (<= main_~index2~0 (+ .cse2 99998)) (<= (+ .cse1 1) main_~index1~0) (or (let ((.cse5 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse4 (select .cse5 (+ (* .cse7 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse3 (select .cse5 (+ (* .cse6 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4))) (<= .cse0 (+ .cse1 main_~index2~0))))))) (= main_~loop_entered~0 0)) [2020-08-22 23:03:04,025 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= main_~loop_entered~0 0) [2020-08-22 23:03:04,025 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 22 50) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-08-22 23:03:04,025 INFO L264 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (= main_~loop_entered~0 0) [2020-08-22 23:03:04,025 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-08-22 23:03:04,026 INFO L264 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (let ((.cse14 (div main_~index1~0 4294967296)) (.cse15 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse15)) (.cse1 (* 4294967296 .cse14))) (or (and (<= (+ .cse0 main_~index1~0) (+ .cse1 main_~index2~0 1)) (<= (+ .cse1 1) main_~index1~0) (let ((.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse12 (* .cse15 (- 17179869184))) (.cse13 (* main_~index2~0 4))) (let ((.cse4 (select .cse5 (+ .cse12 .cse13 |main_~#array~0.offset|))) (.cse6 (* .cse14 (- 17179869184))) (.cse7 (* main_~index1~0 4)) (.cse2 (+ .cse1 2147483647))) (or (and (<= main_~index1~0 .cse2) (<= (let ((.cse3 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4)) (and (let ((.cse9 (select .cse5 (+ .cse6 .cse7 |main_~#array~0.offset| (- 17179869184))))) (let ((.cse8 (+ .cse0 2147483647)) (.cse11 (* .cse9 (- 1)))) (or (and (< .cse8 main_~index2~0) (let ((.cse10 (select .cse5 (+ .cse12 .cse13 |main_~#array~0.offset| (- 17179869184))))) (<= (+ .cse9 (* 4294967296 (div (+ .cse10 .cse11 4294967295) 4294967296))) .cse10))) (and (<= main_~index2~0 .cse8) (<= (+ .cse9 (* 4294967296 (div (+ .cse4 .cse11 4294967295) 4294967296))) .cse4))))) (< .cse2 main_~index1~0))))) (<= main_~index2~0 (+ .cse0 4294967294))) (<= (+ .cse0 main_~index1~0 1) (+ .cse1 main_~index2~0))))) [2020-08-22 23:03:04,026 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (let ((.cse7 (div main_~index2~0 4294967296))) (let ((.cse6 (div main_~index1~0 4294967296)) (.cse2 (* 4294967296 .cse7))) (let ((.cse0 (+ .cse2 main_~index1~0)) (.cse1 (* 4294967296 .cse6))) (and (<= .cse0 (+ .cse1 main_~index2~0 1)) (<= main_~index2~0 (+ .cse2 99998)) (<= (+ .cse1 1) main_~index1~0) (or (let ((.cse5 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse4 (select .cse5 (+ (* .cse7 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse3 (select .cse5 (+ (* .cse6 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse3 (* 4294967296 (div (+ (* .cse3 (- 1)) .cse4 4294967295) 4294967296)))) .cse4))) (<= .cse0 (+ .cse1 main_~index2~0))))))) [2020-08-22 23:03:04,026 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (or (<= main_~index2~0 (+ .cse0 99998)) (and (<= main_~index2~0 (+ .cse0 99999)) (= main_~loop_entered~0 0))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2020-08-22 23:03:04,026 INFO L264 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse0 99999)) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2020-08-22 23:03:04,026 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 23:03:04,027 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 12 18) the Hoare annotation is: true [2020-08-22 23:03:04,027 INFO L264 CegarLoopResult]: At program point L14(lines 14 16) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:03:04,027 INFO L264 CegarLoopResult]: At program point L14-2(lines 12 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:03:04,027 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 12 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 23:03:04,027 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 23:03:04,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,043 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,043 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 11:03:04 BoogieIcfgContainer [2020-08-22 23:03:04,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 23:03:04,070 INFO L168 Benchmark]: Toolchain (without parser) took 33685.84 ms. Allocated memory was 138.9 MB in the beginning and 302.5 MB in the end (delta: 163.6 MB). Free memory was 102.9 MB in the beginning and 104.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 161.6 MB. Max. memory is 7.1 GB. [2020-08-22 23:03:04,071 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-22 23:03:04,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.27 ms. Allocated memory is still 138.9 MB. Free memory was 102.9 MB in the beginning and 92.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-22 23:03:04,073 INFO L168 Benchmark]: Boogie Preprocessor took 131.44 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.4 MB in the beginning and 180.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-08-22 23:03:04,073 INFO L168 Benchmark]: RCFGBuilder took 413.51 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 162.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-08-22 23:03:04,075 INFO L168 Benchmark]: TraceAbstraction took 32834.49 ms. Allocated memory was 202.9 MB in the beginning and 302.5 MB in the end (delta: 99.6 MB). Free memory was 162.4 MB in the beginning and 104.9 MB in the end (delta: 57.5 MB). Peak memory consumption was 157.1 MB. Max. memory is 7.1 GB. [2020-08-22 23:03:04,079 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.27 ms. Allocated memory is still 138.9 MB. Free memory was 102.9 MB in the beginning and 92.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.44 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.4 MB in the beginning and 180.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.51 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 162.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32834.49 ms. Allocated memory was 202.9 MB in the beginning and 302.5 MB in the end (delta: 99.6 MB). Free memory was 162.4 MB in the beginning and 104.9 MB in the end (delta: 57.5 MB). Peak memory consumption was 157.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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: 32]: Loop Invariant [2020-08-22 23:03:04,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2 + 1 && index2 <= 4294967296 * (index2 / 4294967296) + 99998) && 4294967296 * (index1 / 4294967296) + 1 <= index1) && (unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] * -1 + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] || 4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2)) || (index2 <= 4294967296 * (index2 / 4294967296) + 99999 && loop_entered == 0) - InvariantResult [Line: 43]: Loop Invariant [2020-08-22 23:03:04,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 23:03:04,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2 + 1 && 4294967296 * (index1 / 4294967296) + 1 <= index1) && ((index1 <= 4294967296 * (index1 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] * -1 + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array]) || (((4294967296 * (index2 / 4294967296) + 2147483647 < index2 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array + -17179869184] + unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array + -17179869184]) || (index2 <= 4294967296 * (index2 / 4294967296) + 2147483647 && unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] + 4294967296 * ((unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array + -17179869184] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array])) && 4294967296 * (index1 / 4294967296) + 2147483647 < index1))) && index2 <= 4294967296 * (index2 / 4294967296) + 4294967294) || 4294967296 * (index2 / 4294967296) + index1 + 1 <= 4294967296 * (index1 / 4294967296) + index2 - ProcedureContractResult [Line: 9]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: cond == \old(cond) && !(\old(cond) == 0) - ProcedureContractResult [Line: 22]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.2s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 186 SDslu, 1150 SDs, 0 SdLazy, 1293 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 47 SyntacticMatches, 8 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 16.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 122 PreInvPairs, 190 NumberOfFragments, 3637 HoareAnnotationTreeSize, 122 FomulaSimplifications, 477 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 61 FomulaSimplificationsInter, 7843 FormulaSimplificationTreeSizeReductionInter, 11.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 299046 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 61/64 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...