/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:50:34,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:50:34,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:50:34,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:50:34,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:50:34,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:50:34,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:50:34,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:50:34,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:50:34,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:50:34,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:50:34,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:50:34,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:50:34,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:50:34,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:50:34,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:50:34,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:50:34,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:50:34,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:50:34,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:50:34,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:50:34,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:50:34,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:50:34,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:50:34,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 20:50:34,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 20:50:34,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 20:50:34,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 20:50:34,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 20:50:34,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 20:50:34,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 20:50:34,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 20:50:34,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 20:50:34,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 20:50:34,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 20:50:34,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 20:50:34,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 20:50:34,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 20:50:34,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:50:34,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:50:34,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:50:34,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:50:34,758 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:50:34,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:50:34,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:50:34,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:50:34,759 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:50:34,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:50:34,760 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:50:34,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:50:34,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:50:34,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:50:34,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:50:34,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:50:34,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:50:34,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:50:34,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:50:34,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:50:34,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:50:34,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:50:34,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:50:34,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:50:34,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:50:34,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:50:34,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:50:34,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:50:34,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:50:34,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:50:34,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:34,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:50:34,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:50:34,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:50:35,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:50:35,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:50:35,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:50:35,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:50:35,079 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:50:35,079 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt9.c [2020-07-21 20:50:35,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/960abb0f7/8ac73184784b4ca3a8b12b8b59aef663/FLAG861259049 [2020-07-21 20:50:35,582 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:50:35,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt9.c [2020-07-21 20:50:35,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/960abb0f7/8ac73184784b4ca3a8b12b8b59aef663/FLAG861259049 [2020-07-21 20:50:35,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/960abb0f7/8ac73184784b4ca3a8b12b8b59aef663 [2020-07-21 20:50:35,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:50:35,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:50:35,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:50:35,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:50:35,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:50:35,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:50:35" (1/1) ... [2020-07-21 20:50:35,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28715b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:35, skipping insertion in model container [2020-07-21 20:50:35,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:50:35" (1/1) ... [2020-07-21 20:50:35,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:50:36,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:50:36,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:50:36,173 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:50:36,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:50:36,227 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:50:36,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36 WrapperNode [2020-07-21 20:50:36,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:50:36,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:50:36,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:50:36,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:50:36,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... [2020-07-21 20:50:36,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:50:36,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:50:36,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:50:36,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:50:36,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:50:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:50:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:50:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 20:50:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 20:50:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:50:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:50:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 20:50:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 20:50:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 20:50:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:50:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:50:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:50:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:50:36,683 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:50:36,684 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:50:36,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:50:36 BoogieIcfgContainer [2020-07-21 20:50:36,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:50:36,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:50:36,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:50:36,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:50:36,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:50:35" (1/3) ... [2020-07-21 20:50:36,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72372397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:50:36, skipping insertion in model container [2020-07-21 20:50:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:36" (2/3) ... [2020-07-21 20:50:36,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72372397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:50:36, skipping insertion in model container [2020-07-21 20:50:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:50:36" (3/3) ... [2020-07-21 20:50:36,700 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt9.c [2020-07-21 20:50:36,711 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:50:36,722 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:50:36,740 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:50:36,764 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:50:36,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:50:36,765 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:50:36,765 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:50:36,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:50:36,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:50:36,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:50:36,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:50:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-21 20:50:36,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 20:50:36,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:50:36,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:50:36,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:50:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:50:36,821 INFO L82 PathProgramCache]: Analyzing trace with hash -684006215, now seen corresponding path program 1 times [2020-07-21 20:50:36,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:50:36,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966019054] [2020-07-21 20:50:36,831 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:36,920 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:50:36,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:50:36,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 20:50:36,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:50:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:50:37,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:50:37,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966019054] [2020-07-21 20:50:37,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:50:37,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 20:50:37,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358247591] [2020-07-21 20:50:37,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:50:37,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:50:37,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:50:37,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:50:37,157 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 7 states. [2020-07-21 20:50:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:50:37,405 INFO L93 Difference]: Finished difference Result 74 states and 111 transitions. [2020-07-21 20:50:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:50:37,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-21 20:50:37,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:50:37,417 INFO L225 Difference]: With dead ends: 74 [2020-07-21 20:50:37,417 INFO L226 Difference]: Without dead ends: 41 [2020-07-21 20:50:37,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:50:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-21 20:50:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-07-21 20:50:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-21 20:50:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-07-21 20:50:37,466 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 14 [2020-07-21 20:50:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:50:37,467 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-07-21 20:50:37,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:50:37,467 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-07-21 20:50:37,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 20:50:37,469 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:50:37,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:50:37,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:37,683 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:50:37,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:50:37,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1563298987, now seen corresponding path program 1 times [2020-07-21 20:50:37,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:50:37,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795519752] [2020-07-21 20:50:37,686 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:37,749 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:50:37,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:50:37,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-21 20:50:37,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:50:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:50:37,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:50:38,000 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:50:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:50:38,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795519752] [2020-07-21 20:50:38,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:50:38,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2020-07-21 20:50:38,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876417387] [2020-07-21 20:50:38,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:50:38,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:50:38,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:50:38,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-07-21 20:50:38,167 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-07-21 20:51:09,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:51:09,387 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2020-07-21 20:51:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:51:09,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-07-21 20:51:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:51:09,391 INFO L225 Difference]: With dead ends: 58 [2020-07-21 20:51:09,391 INFO L226 Difference]: Without dead ends: 56 [2020-07-21 20:51:09,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:51:09,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-21 20:51:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-07-21 20:51:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-21 20:51:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2020-07-21 20:51:09,403 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 29 [2020-07-21 20:51:09,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:51:09,403 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2020-07-21 20:51:09,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:51:09,403 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2020-07-21 20:51:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-21 20:51:09,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:51:09,405 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:51:09,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:51:09,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:51:09,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:51:09,608 INFO L82 PathProgramCache]: Analyzing trace with hash -908789750, now seen corresponding path program 1 times [2020-07-21 20:51:09,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:51:09,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349631017] [2020-07-21 20:51:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:51:09,663 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:51:09,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:51:09,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 20:51:09,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:51:09,843 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:51:09,849 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:51:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 20:51:09,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:51:10,007 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 20:51:10,007 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:51:10,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349631017] [2020-07-21 20:51:10,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:51:10,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 20:51:10,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356839173] [2020-07-21 20:51:10,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:51:10,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:51:10,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:51:10,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-21 20:51:10,055 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand 8 states. [2020-07-21 20:51:12,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:51:12,346 INFO L93 Difference]: Finished difference Result 93 states and 128 transitions. [2020-07-21 20:51:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:51:12,347 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-07-21 20:51:12,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:51:12,348 INFO L225 Difference]: With dead ends: 93 [2020-07-21 20:51:12,349 INFO L226 Difference]: Without dead ends: 61 [2020-07-21 20:51:12,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-07-21 20:51:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-21 20:51:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-07-21 20:51:12,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-21 20:51:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2020-07-21 20:51:12,365 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 38 [2020-07-21 20:51:12,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:51:12,365 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2020-07-21 20:51:12,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:51:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2020-07-21 20:51:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-21 20:51:12,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:51:12,368 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:51:12,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:51:12,569 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:51:12,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:51:12,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1477789953, now seen corresponding path program 1 times [2020-07-21 20:51:12,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:51:12,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806242174] [2020-07-21 20:51:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:51:12,620 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:51:12,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:51:12,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 30 conjunts are in the unsatisfiable core [2020-07-21 20:51:12,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:51:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:51:12,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:51:12,785 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:51:19,038 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:51:31,461 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 10 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:51:31,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806242174] [2020-07-21 20:51:31,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:51:31,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-07-21 20:51:31,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722158410] [2020-07-21 20:51:31,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 20:51:31,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:51:31,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 20:51:31,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=61, Unknown=9, NotChecked=0, Total=110 [2020-07-21 20:51:31,465 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand 11 states. [2020-07-21 20:51:33,646 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (+ c_main_~l~0 1))) (or (= 0 (mod (mod (mod .cse0 4294967296) 9) 4294967296)) (< 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296)))) (let ((.cse1 (+ c_main_~l~0 2))) (or (= 0 (mod (mod (mod .cse1 4294967296) 9) 4294967296)) (< 0 (mod (mod (mod .cse1 4294967296) 7) 4294967296)))) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296))) is different from false [2020-07-21 20:51:35,721 WARN L860 $PredicateComparison]: unable to prove that (and (or (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (= 0 (mod (mod (mod c_main_~l~0 4294967296) 9) 4294967296))) (let ((.cse0 (+ c_main_~l~0 1))) (or (= 0 (mod (mod (mod .cse0 4294967296) 9) 4294967296)) (< 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296))))) is different from true [2020-07-21 20:51:37,786 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (+ c_main_~l~0 1))) (or (= 0 (mod (mod (mod .cse0 4294967296) 9) 4294967296)) (< 0 (mod (mod (mod .cse0 4294967296) 7) 4294967296)))) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296))) is different from false [2020-07-21 20:53:58,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:53:58,478 INFO L93 Difference]: Finished difference Result 107 states and 150 transitions. [2020-07-21 20:53:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 20:53:58,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-07-21 20:53:58,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:53:58,481 INFO L225 Difference]: With dead ends: 107 [2020-07-21 20:53:58,481 INFO L226 Difference]: Without dead ends: 75 [2020-07-21 20:53:58,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=12, NotChecked=60, Total=182 [2020-07-21 20:53:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-21 20:53:58,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2020-07-21 20:53:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-21 20:53:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2020-07-21 20:53:58,494 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 39 [2020-07-21 20:53:58,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:53:58,494 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2020-07-21 20:53:58,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 20:53:58,495 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2020-07-21 20:53:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-21 20:53:58,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:53:58,496 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:53:58,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:53:58,699 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:53:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:53:58,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1143083323, now seen corresponding path program 1 times [2020-07-21 20:53:58,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:53:58,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083833058] [2020-07-21 20:53:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:53:58,771 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:53:58,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:53:58,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-21 20:53:58,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:53:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:53:59,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:53:59,058 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:54:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 9 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 20:54:32,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083833058] [2020-07-21 20:54:32,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:54:32,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2020-07-21 20:54:32,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507295187] [2020-07-21 20:54:32,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-21 20:54:32,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:54:32,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-21 20:54:32,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=229, Unknown=16, NotChecked=0, Total=306 [2020-07-21 20:54:32,363 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand 18 states. [2020-07-21 20:54:49,328 WARN L193 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 20:55:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:55:39,228 INFO L93 Difference]: Finished difference Result 105 states and 141 transitions. [2020-07-21 20:55:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 20:55:39,234 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 44 [2020-07-21 20:55:39,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:55:39,235 INFO L225 Difference]: With dead ends: 105 [2020-07-21 20:55:39,235 INFO L226 Difference]: Without dead ends: 81 [2020-07-21 20:55:39,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 50.0s TimeCoverageRelationStatistics Valid=75, Invalid=285, Unknown=20, NotChecked=0, Total=380 [2020-07-21 20:55:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-21 20:55:39,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-21 20:55:39,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-21 20:55:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2020-07-21 20:55:39,245 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 44 [2020-07-21 20:55:39,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:55:39,245 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2020-07-21 20:55:39,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-21 20:55:39,246 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2020-07-21 20:55:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 20:55:39,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:55:39,248 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:55:39,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:55:39,451 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:55:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:55:39,452 INFO L82 PathProgramCache]: Analyzing trace with hash -850530640, now seen corresponding path program 1 times [2020-07-21 20:55:39,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:55:39,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061156212] [2020-07-21 20:55:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:55:39,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:55:39,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:55:39,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-21 20:55:39,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:55:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 20:55:39,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:55:40,116 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 20:55:40,116 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:55:42,234 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 29 [2020-07-21 20:55:42,244 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:55:42,247 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 20:55:42,251 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 20:55:44,441 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 31 [2020-07-21 20:55:50,718 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 20:56:01,186 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= 0 (mod (mod c_main_~l~0 4294967296) 3))) (.cse1 (mod c_main_~l~0 4294967296)) (.cse2 (+ c_main_~l~0 2))) (or (and (= 0 (mod (mod (mod c_main_~l~0 4294967296) 3) 4294967296)) (or .cse0 (<= 0 .cse1))) (= 0 (mod (mod (mod .cse2 4294967296) 9) 4294967296)) (< 0 (mod .cse2 8)) (and (not .cse0) (< .cse1 0) (= 0 (mod (+ (mod (mod c_main_~l~0 4294967296) 3) 4294967293) 4294967296))) (not (= (mod .cse2 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 2) 4294967296))))) is different from true [2020-07-21 20:56:01,209 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,214 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 20:56:01,216 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,220 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 6 conjuncts [2020-07-21 20:56:01,221 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,226 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,229 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,238 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,240 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,243 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,246 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 20:56:01,247 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,252 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,255 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,259 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,262 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,266 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:01,269 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 20:56:03,381 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~l~0 1)) (.cse1 (+ c_main_~l~0 3))) (or (and (not (= 0 (mod (mod .cse0 4294967296) 3))) (< (mod .cse0 4294967296) 0) (= 0 (mod (+ (mod (mod .cse0 4294967296) 3) 4294967293) 4294967296))) (< 0 (mod .cse1 8)) (and (= 0 (mod (mod (mod .cse0 4294967296) 3) 4294967296)) (or (= 0 (mod (mod .cse0 4294967296) 3)) (<= 0 (mod .cse0 4294967296)))) (not (= (mod .cse1 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 2) 4294967296))) (= 0 (mod (mod (mod .cse1 4294967296) 9) 4294967296)))) is different from true [2020-07-21 20:56:33,048 WARN L193 SmtUtils]: Spent 16.58 s on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-07-21 20:56:33,057 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 20:56:35,149 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~l~0 4))) (or (< 0 (mod .cse0 8)) (= 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 3) 4294967296)) (= 0 (mod (mod (mod .cse0 4294967296) 9) 4294967296)) (not (= (mod .cse0 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 3) 4294967296))))) is different from true [2020-07-21 20:56:55,931 WARN L193 SmtUtils]: Spent 4.24 s on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 20:56:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 21 refuted. 4 times theorem prover too weak. 15 trivial. 29 not checked. [2020-07-21 20:56:55,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061156212] [2020-07-21 20:56:55,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:56:55,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 27 [2020-07-21 20:56:55,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128603050] [2020-07-21 20:56:55,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-07-21 20:56:55,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:56:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-07-21 20:56:55,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=397, Unknown=22, NotChecked=138, Total=702 [2020-07-21 20:56:55,987 INFO L87 Difference]: Start difference. First operand 81 states and 98 transitions. Second operand 27 states. [2020-07-21 20:57:06,930 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 (+ c_main_~l~0 1)) (.cse8 (+ c_main_~l~0 2))) (let ((.cse0 (= 0 (mod (mod (mod .cse8 4294967296) 9) 4294967296))) (.cse1 (< 0 (mod .cse8 8))) (.cse5 (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 1) 4294967296)) (.cse2 (mod .cse8 4294967296)) (.cse3 (= (mod (mod (mod .cse10 4294967296) 9) 4294967296) 0)) (.cse6 (< 0 (mod .cse10 8))) (.cse4 (mod .cse10 4294967296))) (and (or .cse0 .cse1 (not (= .cse2 (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 2) 4294967296)))) (or .cse3 (not (= .cse4 .cse5)) .cse6) (or .cse0 .cse1 (not (= .cse5 .cse2))) (let ((.cse7 (+ c_main_~l~0 4))) (or (< 0 (mod .cse7 8)) (= 0 (mod (mod (mod .cse8 4294967296) 3) 4294967296)) (= 0 (mod (mod (mod .cse7 4294967296) 9) 4294967296)) (not (= (mod .cse7 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 4) 4294967296))))) (or .cse3 .cse6 (not (= .cse4 (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0) 4294967296)))) (let ((.cse9 (+ c_main_~l~0 3))) (or (= 0 (mod (mod (mod .cse9 4294967296) 9) 4294967296)) (= 0 (mod (mod (mod .cse10 4294967296) 3) 4294967296)) (< 0 (mod .cse9 8)) (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 3) 4294967296) (mod .cse9 4294967296))))) (< 0 (mod c_main_~l~0 8))))) is different from false [2020-07-21 20:57:36,319 WARN L193 SmtUtils]: Spent 18.95 s on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 20:57:59,476 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~l~0 1))) (and (or (= (mod (mod (mod .cse0 4294967296) 9) 4294967296) 0) (not (= (mod .cse0 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 1) 4294967296))) (< 0 (mod .cse0 8))) (let ((.cse1 (+ c_main_~l~0 3))) (or (= 0 (mod (mod (mod .cse1 4294967296) 9) 4294967296)) (= 0 (mod (mod (mod .cse0 4294967296) 3) 4294967296)) (< 0 (mod .cse1 8)) (not (= (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 3) 4294967296) (mod .cse1 4294967296))))) (< 0 (mod c_main_~l~0 8)))) is different from true [2020-07-21 20:58:27,707 WARN L193 SmtUtils]: Spent 18.92 s on a formula simplification that was a NOOP. DAG size: 56 [2020-07-21 20:59:45,108 WARN L193 SmtUtils]: Spent 39.49 s on a formula simplification that was a NOOP. DAG size: 83 [2020-07-21 21:00:10,578 WARN L193 SmtUtils]: Spent 23.22 s on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 21:00:22,982 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (+ c_main_~l~0 1))) (or (= (mod (mod (mod .cse0 4294967296) 9) 4294967296) 0) (not (= (mod .cse0 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0 1) 4294967296))) (< 0 (mod .cse0 8)))) (or (= 0 (mod (mod (mod c_main_~l~0 4294967296) 9) 4294967296)) (not (= (mod c_main_~l~0 4294967296) (mod (+ c_main_~i~0 c_main_~j~0 c_main_~v1~0 c_main_~k~0 c_main_~v2~0 c_main_~v3~0 c_main_~v4~0 c_main_~v5~0 c_main_~v6~0) 4294967296))) (< 0 (mod c_main_~l~0 8)))) is different from true [2020-07-21 21:00:37,888 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 34 [2020-07-21 21:01:07,674 WARN L193 SmtUtils]: Spent 21.22 s on a formula simplification that was a NOOP. DAG size: 64 [2020-07-21 21:02:09,256 WARN L193 SmtUtils]: Spent 56.39 s on a formula simplification. DAG size of input: 129 DAG size of output: 103 [2020-07-21 21:03:32,703 WARN L193 SmtUtils]: Spent 48.61 s on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2020-07-21 21:04:00,326 WARN L193 SmtUtils]: Spent 4.27 s on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 21:04:55,606 WARN L193 SmtUtils]: Spent 36.26 s on a formula simplification. DAG size of input: 86 DAG size of output: 66