/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:15:45,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:15:45,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:15:45,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:15:45,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:15:45,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:15:45,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:15:45,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:15:45,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:15:45,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:15:45,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:15:45,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:15:45,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:15:45,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:15:45,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:15:45,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:15:45,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:15:45,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:15:45,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:15:45,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:15:45,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:15:45,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:15:45,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:15:45,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:15:45,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:15:45,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:15:45,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:15:45,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:15:45,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 12:15:45,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:15:45,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:15:45,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:15:45,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:15:45,840 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:15:45,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:15:45,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:15:45,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:15:45,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:15:45,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:15:45,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:15:45,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:15:45,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:15:45,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:15:45,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:15:45,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:15:45,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:15:45,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:15:45,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:15:45,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:15:45,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:15:45,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:15:45,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:15:45,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:15:45,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:15:45,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:15:45,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:15:45,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:15:45,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:15:45,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:15:46,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:15:46,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:15:46,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:15:46,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:15:46,179 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:15:46,180 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-1.c [2020-07-17 12:15:46,241 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee0ec091/9d1c0e60390c423aad9dfbebf70dff19/FLAG77954d397 [2020-07-17 12:15:46,729 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:15:46,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-1.c [2020-07-17 12:15:46,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee0ec091/9d1c0e60390c423aad9dfbebf70dff19/FLAG77954d397 [2020-07-17 12:15:47,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee0ec091/9d1c0e60390c423aad9dfbebf70dff19 [2020-07-17 12:15:47,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:15:47,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:15:47,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:15:47,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:15:47,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:15:47,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258a1e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47, skipping insertion in model container [2020-07-17 12:15:47,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:15:47,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:15:47,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:15:47,364 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:15:47,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:15:47,405 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:15:47,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47 WrapperNode [2020-07-17 12:15:47,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:15:47,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:15:47,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:15:47,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:15:47,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... [2020-07-17 12:15:47,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:15:47,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:15:47,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:15:47,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:15:47,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:15:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:15:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:15:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 12:15:47,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:15:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:15:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 12:15:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:15:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:15:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 12:15:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 12:15:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 12:15:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 12:15:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:15:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:15:47,855 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:15:47,855 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 12:15:47,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:15:47 BoogieIcfgContainer [2020-07-17 12:15:47,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:15:47,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:15:47,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:15:47,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:15:47,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:15:47" (1/3) ... [2020-07-17 12:15:47,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ab164e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:15:47, skipping insertion in model container [2020-07-17 12:15:47,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:15:47" (2/3) ... [2020-07-17 12:15:47,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ab164e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:15:47, skipping insertion in model container [2020-07-17 12:15:47,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:15:47" (3/3) ... [2020-07-17 12:15:47,886 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2020-07-17 12:15:47,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:15:47,903 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:15:47,916 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:15:47,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:15:47,935 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:15:47,935 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:15:47,935 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:15:47,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:15:47,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:15:47,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:15:47,936 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:15:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-17 12:15:47,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-17 12:15:47,961 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:47,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:47,962 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:47,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:47,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2020-07-17 12:15:47,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:47,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538112029] [2020-07-17 12:15:47,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:48,061 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:48,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277660861] [2020-07-17 12:15:48,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:15:48,123 INFO L264 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-17 12:15:48,129 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:15:48,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538112029] [2020-07-17 12:15:48,157 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:48,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277660861] [2020-07-17 12:15:48,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:15:48,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-17 12:15:48,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811736982] [2020-07-17 12:15:48,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-17 12:15:48,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:48,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-17 12:15:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 12:15:48,182 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-07-17 12:15:48,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:48,214 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2020-07-17 12:15:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-17 12:15:48,215 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-17 12:15:48,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:48,228 INFO L225 Difference]: With dead ends: 42 [2020-07-17 12:15:48,229 INFO L226 Difference]: Without dead ends: 17 [2020-07-17 12:15:48,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 12:15:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-17 12:15:48,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-17 12:15:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-17 12:15:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-07-17 12:15:48,271 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2020-07-17 12:15:48,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:48,272 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-07-17 12:15:48,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-17 12:15:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-07-17 12:15:48,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-17 12:15:48,273 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:48,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:48,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-07-17 12:15:48,485 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:48,486 INFO L82 PathProgramCache]: Analyzing trace with hash 672047389, now seen corresponding path program 1 times [2020-07-17 12:15:48,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:48,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652925380] [2020-07-17 12:15:48,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:48,507 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:48,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291246230] [2020-07-17 12:15:48,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:15:48,564 INFO L264 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:15:48,566 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:15:48,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652925380] [2020-07-17 12:15:48,600 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:48,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291246230] [2020-07-17 12:15:48,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:15:48,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 12:15:48,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713013792] [2020-07-17 12:15:48,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:15:48,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:48,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:15:48,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 12:15:48,604 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2020-07-17 12:15:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:48,655 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2020-07-17 12:15:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:15:48,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-17 12:15:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:48,657 INFO L225 Difference]: With dead ends: 28 [2020-07-17 12:15:48,657 INFO L226 Difference]: Without dead ends: 22 [2020-07-17 12:15:48,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 12:15:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-17 12:15:48,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2020-07-17 12:15:48,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-17 12:15:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-07-17 12:15:48,664 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2020-07-17 12:15:48,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:48,665 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-07-17 12:15:48,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:15:48,665 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-07-17 12:15:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-17 12:15:48,666 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:48,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:48,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:48,880 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:48,881 INFO L82 PathProgramCache]: Analyzing trace with hash -830834987, now seen corresponding path program 1 times [2020-07-17 12:15:48,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:48,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819178795] [2020-07-17 12:15:48,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:48,893 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:48,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120222630] [2020-07-17 12:15:48,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:15:48,942 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-17 12:15:48,944 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:15:48,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819178795] [2020-07-17 12:15:48,979 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:48,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120222630] [2020-07-17 12:15:48,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:15:48,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 12:15:48,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628994987] [2020-07-17 12:15:48,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 12:15:48,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:48,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 12:15:48,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 12:15:48,983 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2020-07-17 12:15:49,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:49,047 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2020-07-17 12:15:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 12:15:49,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-17 12:15:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:49,051 INFO L225 Difference]: With dead ends: 32 [2020-07-17 12:15:49,051 INFO L226 Difference]: Without dead ends: 21 [2020-07-17 12:15:49,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:15:49,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-17 12:15:49,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-07-17 12:15:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-17 12:15:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-07-17 12:15:49,061 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2020-07-17 12:15:49,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:49,061 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-07-17 12:15:49,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 12:15:49,062 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-07-17 12:15:49,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-17 12:15:49,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:49,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:49,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:49,278 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:49,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:49,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1529445450, now seen corresponding path program 1 times [2020-07-17 12:15:49,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:49,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088119688] [2020-07-17 12:15:49,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:49,289 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:49,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648440707] [2020-07-17 12:15:49,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:15:49,347 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-17 12:15:49,350 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:49,459 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:49,459 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:49,903 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 29 [2020-07-17 12:15:49,904 INFO L624 ElimStorePlain]: treesize reduction 395, result has 8.4 percent of original size [2020-07-17 12:15:49,905 INFO L512 ElimStorePlain]: Eliminatee v_prenex_13 vanished before elimination [2020-07-17 12:15:49,905 INFO L512 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2020-07-17 12:15:49,905 INFO L512 ElimStorePlain]: Eliminatee |v_#memory_int_7| vanished before elimination [2020-07-17 12:15:49,906 INFO L512 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2020-07-17 12:15:49,907 INFO L512 ElimStorePlain]: Eliminatee v_prenex_11 vanished before elimination [2020-07-17 12:15:49,926 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2020-07-17 12:15:49,927 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:49,943 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:49,943 INFO L512 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2020-07-17 12:15:49,944 INFO L544 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-17 12:15:49,945 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 16 variables, input treesize:497, output treesize:10 [2020-07-17 12:15:49,977 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-17 12:15:49,983 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:49,986 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:49,988 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-17 12:15:49,988 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-17 12:15:50,002 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:15:50,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088119688] [2020-07-17 12:15:50,037 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:50,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648440707] [2020-07-17 12:15:50,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:15:50,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-17 12:15:50,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203515087] [2020-07-17 12:15:50,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:15:50,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:50,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:15:50,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:15:50,039 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 8 states. [2020-07-17 12:15:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:50,249 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2020-07-17 12:15:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 12:15:50,249 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-07-17 12:15:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:50,251 INFO L225 Difference]: With dead ends: 37 [2020-07-17 12:15:50,251 INFO L226 Difference]: Without dead ends: 31 [2020-07-17 12:15:50,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-07-17 12:15:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-17 12:15:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2020-07-17 12:15:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 12:15:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-07-17 12:15:50,259 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 18 [2020-07-17 12:15:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:50,259 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-07-17 12:15:50,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:15:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2020-07-17 12:15:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-17 12:15:50,260 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:50,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:50,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:50,467 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:50,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:50,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1922472460, now seen corresponding path program 1 times [2020-07-17 12:15:50,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:50,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794085742] [2020-07-17 12:15:50,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:50,492 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:50,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666995119] [2020-07-17 12:15:50,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:15:50,540 INFO L264 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-17 12:15:50,542 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:50,585 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-17 12:15:50,586 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:50,591 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:50,592 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-17 12:15:50,592 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:7 [2020-07-17 12:15:50,612 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-07-17 12:15:50,613 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:50,615 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:50,616 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-17 12:15:50,616 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2020-07-17 12:15:50,627 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:15:50,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794085742] [2020-07-17 12:15:50,650 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:50,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666995119] [2020-07-17 12:15:50,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:15:50,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 12:15:50,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585252311] [2020-07-17 12:15:50,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 12:15:50,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:50,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 12:15:50,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:15:50,653 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 9 states. [2020-07-17 12:15:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:50,918 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-07-17 12:15:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 12:15:50,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-07-17 12:15:50,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:50,921 INFO L225 Difference]: With dead ends: 41 [2020-07-17 12:15:50,921 INFO L226 Difference]: Without dead ends: 35 [2020-07-17 12:15:50,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-07-17 12:15:50,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-17 12:15:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2020-07-17 12:15:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-17 12:15:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-07-17 12:15:50,929 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 18 [2020-07-17 12:15:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:50,930 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-07-17 12:15:50,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 12:15:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-07-17 12:15:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 12:15:50,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:50,931 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:51,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:51,145 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:51,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:51,146 INFO L82 PathProgramCache]: Analyzing trace with hash -422232267, now seen corresponding path program 2 times [2020-07-17 12:15:51,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:51,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368486098] [2020-07-17 12:15:51,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:51,156 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:51,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547780250] [2020-07-17 12:15:51,157 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:51,200 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-17 12:15:51,200 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-17 12:15:51,202 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:15:51,203 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:15:51,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368486098] [2020-07-17 12:15:51,237 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:51,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547780250] [2020-07-17 12:15:51,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:15:51,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-07-17 12:15:51,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82491362] [2020-07-17 12:15:51,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:15:51,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:51,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:15:51,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:15:51,240 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 5 states. [2020-07-17 12:15:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:51,268 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-07-17 12:15:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 12:15:51,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 12:15:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:51,270 INFO L225 Difference]: With dead ends: 44 [2020-07-17 12:15:51,270 INFO L226 Difference]: Without dead ends: 25 [2020-07-17 12:15:51,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:15:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-17 12:15:51,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-17 12:15:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 12:15:51,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-07-17 12:15:51,276 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-07-17 12:15:51,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:51,276 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-07-17 12:15:51,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:15:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 12:15:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-17 12:15:51,278 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:51,278 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:51,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:51,493 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:51,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:51,493 INFO L82 PathProgramCache]: Analyzing trace with hash 239488911, now seen corresponding path program 3 times [2020-07-17 12:15:51,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:51,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440152315] [2020-07-17 12:15:51,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:51,502 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:51,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426205414] [2020-07-17 12:15:51,503 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:51,565 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-07-17 12:15:51,566 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-17 12:15:51,567 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-17 12:15:51,570 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:51,645 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:51,646 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,025 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2020-07-17 12:15:52,026 INFO L624 ElimStorePlain]: treesize reduction 382, result has 9.9 percent of original size [2020-07-17 12:15:52,026 INFO L512 ElimStorePlain]: Eliminatee v_prenex_21 vanished before elimination [2020-07-17 12:15:52,030 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2020-07-17 12:15:52,031 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,041 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:52,041 INFO L512 ElimStorePlain]: Eliminatee v_prenex_23 vanished before elimination [2020-07-17 12:15:52,042 INFO L512 ElimStorePlain]: Eliminatee |v_#memory_int_9| vanished before elimination [2020-07-17 12:15:52,042 INFO L512 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2020-07-17 12:15:52,042 INFO L512 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2020-07-17 12:15:52,042 INFO L512 ElimStorePlain]: Eliminatee v_prenex_15 vanished before elimination [2020-07-17 12:15:52,043 INFO L544 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,044 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 16 variables, input treesize:489, output treesize:16 [2020-07-17 12:15:52,068 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,069 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:52,069 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:52,071 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:52,074 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:52,075 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:52,076 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:52,245 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,247 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,249 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,256 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,264 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,266 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,273 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,357 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,358 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,378 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,378 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,393 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,394 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,415 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,416 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,430 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,431 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,445 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,445 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,462 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,463 INFO L544 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,477 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,477 INFO L544 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,680 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-17 12:15:52,681 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:52,681 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 145 [2020-07-17 12:15:52,683 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:52,684 INFO L544 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,709 INFO L544 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,723 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,724 INFO L544 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,737 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,737 INFO L544 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,751 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,751 INFO L544 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,769 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,769 INFO L544 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,785 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,786 INFO L544 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,801 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,802 INFO L544 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,815 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,816 INFO L544 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,838 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,838 INFO L544 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,853 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,853 INFO L544 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,868 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,869 INFO L544 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,883 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,883 INFO L544 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,896 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,896 INFO L544 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,910 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,911 INFO L544 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,923 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,924 INFO L544 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,937 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,937 INFO L544 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,955 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,955 INFO L544 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,968 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,968 INFO L544 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:52,999 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:52,999 INFO L544 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,009 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,010 INFO L544 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,020 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,020 INFO L544 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,030 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,031 INFO L544 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,047 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,047 INFO L544 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,059 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,059 INFO L544 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,075 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,075 INFO L544 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,086 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,087 INFO L544 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,097 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,097 INFO L544 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,108 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,108 INFO L544 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,118 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,119 INFO L544 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,128 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,129 INFO L544 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,142 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,142 INFO L544 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,151 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,152 INFO L544 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-17 12:15:53,180 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2020-07-17 12:15:53,181 INFO L544 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,278 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:53,278 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 142 [2020-07-17 12:15:53,279 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:53,280 INFO L544 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,420 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-17 12:15:53,421 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:53,422 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 139 [2020-07-17 12:15:53,423 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:53,424 INFO L544 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,435 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,436 INFO L544 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,446 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,447 INFO L544 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,459 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,459 INFO L544 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,471 INFO L544 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,482 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,482 INFO L544 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,493 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,494 INFO L544 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,504 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,505 INFO L544 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,516 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,517 INFO L544 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,527 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,527 INFO L544 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,538 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,539 INFO L544 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,549 INFO L544 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,562 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,562 INFO L544 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,573 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,573 INFO L544 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,583 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,583 INFO L544 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,596 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,596 INFO L544 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,606 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,606 INFO L544 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,615 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,616 INFO L544 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,625 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,625 INFO L544 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,634 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,634 INFO L544 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:53,642 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-17 12:15:53,642 INFO L544 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2020-07-17 12:15:54,143 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 123 [2020-07-17 12:15:54,144 INFO L624 ElimStorePlain]: treesize reduction 298, result has 62.2 percent of original size [2020-07-17 12:15:54,152 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,157 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,161 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,165 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 4 xjuncts. [2020-07-17 12:15:54,165 INFO L244 ElimStorePlain]: Needed 65 recursive calls to eliminate 4 variables, input treesize:8577, output treesize:396 [2020-07-17 12:15:54,167 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,171 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,174 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,431 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-07-17 12:15:54,441 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-17 12:15:54,444 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,449 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,452 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,454 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,457 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,460 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,462 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,465 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,467 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,472 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,474 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,476 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,478 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,480 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,482 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,487 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 2, 2, 2, 2, 1] term [2020-07-17 12:15:54,488 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-17 12:15:54,489 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,491 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,495 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,497 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,499 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,500 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,501 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:54,502 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,504 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,505 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,506 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,507 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,509 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,510 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,512 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,513 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,515 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,516 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,517 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,519 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,520 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,521 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,522 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,523 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,524 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,526 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,527 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,529 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,530 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,531 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,533 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,534 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,536 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,537 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,538 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,539 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,541 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,546 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:54,548 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,554 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,561 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,563 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,566 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,567 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,568 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,569 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,570 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:54,571 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,572 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,573 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,573 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,575 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,576 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,577 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,578 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,580 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,581 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,582 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,583 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,585 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,586 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,587 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,588 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,589 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,590 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,591 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,593 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,594 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,595 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,596 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,597 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,598 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,600 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,601 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,602 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,603 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,604 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,605 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,607 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,610 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,612 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,613 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,614 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,615 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:15:54,615 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,617 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,618 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,618 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,620 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,621 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,622 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,623 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,624 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,626 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,627 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,628 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,629 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,630 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,631 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,632 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:15:54,633 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,634 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,635 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,636 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,637 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,639 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,640 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,641 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,642 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,643 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,644 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,645 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,646 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:54,647 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:55,150 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 56 [2020-07-17 12:15:55,205 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-17 12:15:55,205 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2020-07-17 12:15:55,206 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:55,207 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:55,208 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-17 12:15:55,246 INFO L624 ElimStorePlain]: treesize reduction 36, result has 50.7 percent of original size [2020-07-17 12:15:55,249 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-17 12:15:55,250 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:79, output treesize:3 [2020-07-17 12:15:55,499 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:15:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:15:55,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440152315] [2020-07-17 12:15:55,558 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:55,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426205414] [2020-07-17 12:15:55,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:15:55,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-07-17 12:15:55,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317655906] [2020-07-17 12:15:55,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:15:55,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:55,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:15:55,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:15:55,560 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 11 states. [2020-07-17 12:15:56,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:56,141 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-07-17 12:15:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 12:15:56,143 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-07-17 12:15:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:56,144 INFO L225 Difference]: With dead ends: 40 [2020-07-17 12:15:56,144 INFO L226 Difference]: Without dead ends: 34 [2020-07-17 12:15:56,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-07-17 12:15:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-17 12:15:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2020-07-17 12:15:56,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 12:15:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-07-17 12:15:56,150 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 24 [2020-07-17 12:15:56,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:56,150 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-07-17 12:15:56,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:15:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 12:15:56,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-17 12:15:56,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:15:56,151 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:15:56,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:56,366 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:15:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:15:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash -153538099, now seen corresponding path program 1 times [2020-07-17 12:15:56,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:15:56,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23028286] [2020-07-17 12:15:56,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:15:56,374 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 12:15:56,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91326297] [2020-07-17 12:15:56,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:15:56,408 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:15:56,410 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:15:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 12:15:56,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23028286] [2020-07-17 12:15:56,439 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 12:15:56,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91326297] [2020-07-17 12:15:56,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:15:56,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-07-17 12:15:56,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338147104] [2020-07-17 12:15:56,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 12:15:56,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:15:56,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 12:15:56,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 12:15:56,441 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 4 states. [2020-07-17 12:15:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:56,461 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-07-17 12:15:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 12:15:56,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-17 12:15:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:56,462 INFO L225 Difference]: With dead ends: 29 [2020-07-17 12:15:56,462 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:15:56,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 12:15:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:15:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:15:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:15:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:15:56,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-07-17 12:15:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:56,464 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:15:56,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 12:15:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:15:56,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:15:56,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-07-17 12:15:56,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:15:56,918 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:15:56,918 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:15:56,918 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:15:56,918 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:15:56,918 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 12:15:56,918 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:15:56,918 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:15:56,918 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 31) no Hoare annotation was computed. [2020-07-17 12:15:56,918 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 26) no Hoare annotation was computed. [2020-07-17 12:15:56,919 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 26) the Hoare annotation is: (let ((.cse0 (= 1 main_~N_COL~0)) (.cse1 (= 1 main_~N_LIN~0))) (or (and (<= (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0) .cse0 (= 1 main_~k~0) (= 1 main_~j~0) .cse1) (and .cse0 (= 0 main_~j~0) .cse1))) [2020-07-17 12:15:56,919 INFO L268 CegarLoopResult]: For program point L19-4(lines 19 26) no Hoare annotation was computed. [2020-07-17 12:15:56,919 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 31) no Hoare annotation was computed. [2020-07-17 12:15:56,919 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 31) the Hoare annotation is: true [2020-07-17 12:15:56,919 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (<= |main_#t~mem6| main_~maior~0) (<= (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0) (= 1 main_~N_COL~0) (= 1 main_~N_LIN~0)) [2020-07-17 12:15:56,919 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-07-17 12:15:56,919 INFO L268 CegarLoopResult]: For program point L24(lines 24 25) no Hoare annotation was computed. [2020-07-17 12:15:56,919 INFO L268 CegarLoopResult]: For program point L20-2(lines 20 26) no Hoare annotation was computed. [2020-07-17 12:15:56,919 INFO L264 CegarLoopResult]: At program point L20-3(lines 20 26) the Hoare annotation is: (let ((.cse0 (= 1 main_~N_COL~0)) (.cse1 (= 0 main_~j~0)) (.cse2 (= 1 main_~N_LIN~0))) (or (and (<= (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0) (= 1 main_~k~0) .cse0 .cse1 .cse2) (and (= 0 main_~k~0) .cse0 .cse1 .cse2))) [2020-07-17 12:15:56,919 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-17 12:15:56,920 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-17 12:15:56,920 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-17 12:15:56,920 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-17 12:15:56,920 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-17 12:15:56,920 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-17 12:15:56,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 12:15:56,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 12:15:56,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 12:15:56,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 12:15:56,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:15:56 BoogieIcfgContainer [2020-07-17 12:15:56,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:15:56,940 INFO L168 Benchmark]: Toolchain (without parser) took 9791.22 ms. Allocated memory was 137.4 MB in the beginning and 288.9 MB in the end (delta: 151.5 MB). Free memory was 101.4 MB in the beginning and 135.9 MB in the end (delta: -34.5 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:56,940 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 12:15:56,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.96 ms. Allocated memory is still 137.4 MB. Free memory was 101.0 MB in the beginning and 90.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:56,942 INFO L168 Benchmark]: Boogie Preprocessor took 111.22 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 90.8 MB in the beginning and 177.8 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:56,942 INFO L168 Benchmark]: RCFGBuilder took 341.21 ms. Allocated memory is still 200.3 MB. Free memory was 177.8 MB in the beginning and 162.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:56,943 INFO L168 Benchmark]: TraceAbstraction took 9061.62 ms. Allocated memory was 200.3 MB in the beginning and 288.9 MB in the end (delta: 88.6 MB). Free memory was 161.6 MB in the beginning and 135.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 114.3 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:56,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.96 ms. Allocated memory is still 137.4 MB. Free memory was 101.0 MB in the beginning and 90.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.22 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 90.8 MB in the beginning and 177.8 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 341.21 ms. Allocated memory is still 200.3 MB. Free memory was 177.8 MB in the beginning and 162.2 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9061.62 ms. Allocated memory was 200.3 MB in the beginning and 288.9 MB in the end (delta: 88.6 MB). Free memory was 161.6 MB in the beginning and 135.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 114.3 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 20]: Loop Invariant [2020-07-17 12:15:56,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 12:15:56,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((unknown-#memory_int-unknown[matriz][matriz] <= maior && 1 == k) && 1 == N_COL) && 0 == j) && 1 == N_LIN) || (((0 == k && 1 == N_COL) && 0 == j) && 1 == N_LIN) - InvariantResult [Line: 19]: Loop Invariant [2020-07-17 12:15:56,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 12:15:56,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((unknown-#memory_int-unknown[matriz][matriz] <= maior && 1 == N_COL) && 1 == k) && 1 == j) && 1 == N_LIN) || ((1 == N_COL && 0 == j) && 1 == N_LIN) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 72 SDslu, 254 SDs, 0 SdLazy, 316 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 28 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 87 HoareAnnotationTreeSize, 15 FomulaSimplifications, 282 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 241 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 144 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 136 ConstructedInterpolants, 11 QuantifiedInterpolants, 30317 SizeOfPredicates, 40 NumberOfNonLiveVariables, 590 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/35 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...