./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test23-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test23-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5a3ee374ac0f96e3c60321b5f69e75eb8e7b4b2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:43:54,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:43:54,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:43:54,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:43:54,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:43:54,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:43:54,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:43:54,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:43:54,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:43:54,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:43:54,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:43:54,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:43:54,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:43:54,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:43:54,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:43:54,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:43:54,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:43:54,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:43:54,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:43:54,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:43:54,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:43:54,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:43:54,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:43:54,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:43:54,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:43:54,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:43:54,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:43:54,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:43:54,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:43:54,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:43:54,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:43:54,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:43:54,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:43:54,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:43:54,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:43:54,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:43:54,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:43:54,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:43:54,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:43:54,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:43:54,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:43:54,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:43:54,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:43:54,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:43:54,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:43:54,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:43:54,159 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:43:54,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:43:54,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:43:54,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:43:54,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:43:54,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:43:54,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:43:54,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:43:54,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:43:54,161 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:43:54,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:43:54,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:43:54,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:43:54,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:43:54,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:43:54,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:43:54,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:43:54,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:54,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:43:54,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:43:54,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:43:54,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:43:54,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:43:54,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:43:54,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:43:54,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5a3ee374ac0f96e3c60321b5f69e75eb8e7b4b2 [2020-10-20 00:43:54,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:43:54,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:43:54,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:43:54,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:43:54,377 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:43:54,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test23-2.c [2020-10-20 00:43:54,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bdba6a12/a59db764c1684d7687fbfe88c24d9e0b/FLAGe9b697838 [2020-10-20 00:43:54,951 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:43:54,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test23-2.c [2020-10-20 00:43:54,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bdba6a12/a59db764c1684d7687fbfe88c24d9e0b/FLAGe9b697838 [2020-10-20 00:43:55,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bdba6a12/a59db764c1684d7687fbfe88c24d9e0b [2020-10-20 00:43:55,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:43:55,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:43:55,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:55,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:43:55,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:43:55,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2f765c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55, skipping insertion in model container [2020-10-20 00:43:55,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:43:55,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:43:55,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:55,714 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:43:55,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:55,780 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:43:55,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55 WrapperNode [2020-10-20 00:43:55,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:55,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:55,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:43:55,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:43:55,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:55,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:43:55,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:43:55,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:43:55,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (1/1) ... [2020-10-20 00:43:55,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:43:55,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:43:55,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:43:55,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:43:55,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (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 [2020-10-20 00:43:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:43:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:43:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:43:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:43:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:43:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:43:56,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:43:56,285 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-20 00:43:56,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:56 BoogieIcfgContainer [2020-10-20 00:43:56,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:43:56,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:43:56,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:43:56,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:43:56,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:43:55" (1/3) ... [2020-10-20 00:43:56,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625588d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:56, skipping insertion in model container [2020-10-20 00:43:56,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:55" (2/3) ... [2020-10-20 00:43:56,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625588d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:56, skipping insertion in model container [2020-10-20 00:43:56,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:56" (3/3) ... [2020-10-20 00:43:56,296 INFO L111 eAbstractionObserver]: Analyzing ICFG test23-2.c [2020-10-20 00:43:56,310 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:43:56,317 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:43:56,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:43:56,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:43:56,357 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:43:56,357 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:43:56,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:43:56,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:43:56,358 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:43:56,359 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:43:56,359 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:43:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-10-20 00:43:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:43:56,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:56,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:56,379 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:56,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:56,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2100293056, now seen corresponding path program 1 times [2020-10-20 00:43:56,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:56,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018873509] [2020-10-20 00:43:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:56,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:56,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018873509] [2020-10-20 00:43:56,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:56,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:43:56,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951311600] [2020-10-20 00:43:56,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:43:56,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:56,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:43:56,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:43:56,624 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-10-20 00:43:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:56,645 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-10-20 00:43:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:43:56,647 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-10-20 00:43:56,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:56,657 INFO L225 Difference]: With dead ends: 31 [2020-10-20 00:43:56,657 INFO L226 Difference]: Without dead ends: 17 [2020-10-20 00:43:56,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:43:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-20 00:43:56,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-20 00:43:56,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 00:43:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-10-20 00:43:56,704 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 15 [2020-10-20 00:43:56,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:56,704 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-10-20 00:43:56,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:43:56,705 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-10-20 00:43:56,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 00:43:56,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:56,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:56,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:43:56,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:56,707 INFO L82 PathProgramCache]: Analyzing trace with hash 478567452, now seen corresponding path program 1 times [2020-10-20 00:43:56,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:56,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913155856] [2020-10-20 00:43:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:57,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913155856] [2020-10-20 00:43:57,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:57,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 00:43:57,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832704694] [2020-10-20 00:43:57,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 00:43:57,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:43:57,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 00:43:57,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-20 00:43:57,074 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 11 states. [2020-10-20 00:43:57,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:43:57,610 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2020-10-20 00:43:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 00:43:57,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-10-20 00:43:57,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:43:57,612 INFO L225 Difference]: With dead ends: 63 [2020-10-20 00:43:57,612 INFO L226 Difference]: Without dead ends: 58 [2020-10-20 00:43:57,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-20 00:43:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-20 00:43:57,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 19. [2020-10-20 00:43:57,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 00:43:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-10-20 00:43:57,622 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2020-10-20 00:43:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:43:57,622 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-10-20 00:43:57,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 00:43:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-10-20 00:43:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 00:43:57,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:57,623 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:43:57,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:43:57,624 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:57,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:57,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1851619425, now seen corresponding path program 1 times [2020-10-20 00:43:57,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:57,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181843954] [2020-10-20 00:43:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:43:57,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181843954] [2020-10-20 00:43:57,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797966793] [2020-10-20 00:43:57,828 INFO L95 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 [2020-10-20 00:43:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:57,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 30 conjunts are in the unsatisfiable core [2020-10-20 00:43:57,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:43:58,219 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 34 treesize of output 30 [2020-10-20 00:43:58,219 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:43:58,233 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:58,240 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-20 00:43:58,240 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:76 [2020-10-20 00:43:58,436 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 00:43:58,439 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:58,440 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 56 treesize of output 19 [2020-10-20 00:43:58,441 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:43:58,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:58,473 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-20 00:43:58,473 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:78, output treesize:33 [2020-10-20 00:44:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:00,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:00,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2020-10-20 00:44:00,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704996377] [2020-10-20 00:44:00,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-20 00:44:00,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:00,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-20 00:44:00,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=362, Unknown=1, NotChecked=0, Total=420 [2020-10-20 00:44:00,595 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 21 states. [2020-10-20 00:44:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:09,745 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2020-10-20 00:44:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-20 00:44:09,746 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 18 [2020-10-20 00:44:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:09,747 INFO L225 Difference]: With dead ends: 71 [2020-10-20 00:44:09,747 INFO L226 Difference]: Without dead ends: 66 [2020-10-20 00:44:09,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=328, Invalid=1307, Unknown=5, NotChecked=0, Total=1640 [2020-10-20 00:44:09,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-20 00:44:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 21. [2020-10-20 00:44:09,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 00:44:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-20 00:44:09,763 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2020-10-20 00:44:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:09,764 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-20 00:44:09,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-20 00:44:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-20 00:44:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 00:44:09,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:09,765 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:09,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 00:44:09,966 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:09,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:09,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1495361690, now seen corresponding path program 2 times [2020-10-20 00:44:09,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:09,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798741624] [2020-10-20 00:44:09,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:10,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798741624] [2020-10-20 00:44:10,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167473009] [2020-10-20 00:44:10,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-10-20 00:44:10,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 00:44:10,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 00:44:10,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 46 conjunts are in the unsatisfiable core [2020-10-20 00:44:10,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:10,382 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 34 treesize of output 30 [2020-10-20 00:44:10,383 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:44:10,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:10,405 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 00:44:10,405 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:60, output treesize:56 [2020-10-20 00:44:10,837 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:44:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 00:44:10,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:10,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2020-10-20 00:44:10,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664566742] [2020-10-20 00:44:10,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-20 00:44:10,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:10,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-20 00:44:10,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2020-10-20 00:44:10,950 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 26 states. [2020-10-20 00:44:11,941 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-20 00:44:12,110 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-20 00:44:12,732 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-20 00:44:12,890 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-20 00:44:13,469 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-20 00:44:13,654 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-20 00:44:14,199 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-20 00:44:14,600 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-20 00:44:14,794 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-20 00:44:15,040 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-20 00:44:15,233 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-20 00:44:15,468 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-20 00:44:15,650 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-20 00:44:15,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:15,659 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2020-10-20 00:44:15,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-20 00:44:15,659 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 20 [2020-10-20 00:44:15,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:15,660 INFO L225 Difference]: With dead ends: 75 [2020-10-20 00:44:15,660 INFO L226 Difference]: Without dead ends: 39 [2020-10-20 00:44:15,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=687, Invalid=3219, Unknown=0, NotChecked=0, Total=3906 [2020-10-20 00:44:15,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-20 00:44:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 23. [2020-10-20 00:44:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 00:44:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-20 00:44:15,672 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 20 [2020-10-20 00:44:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:15,672 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-20 00:44:15,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-20 00:44:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-20 00:44:15,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 00:44:15,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:15,673 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:15,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:15,886 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:15,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1592315053, now seen corresponding path program 1 times [2020-10-20 00:44:15,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:15,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173297589] [2020-10-20 00:44:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-20 00:44:15,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173297589] [2020-10-20 00:44:15,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:44:15,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 00:44:15,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252935085] [2020-10-20 00:44:15,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 00:44:15,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:15,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 00:44:15,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-20 00:44:15,969 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2020-10-20 00:44:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:16,131 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-10-20 00:44:16,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 00:44:16,131 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-20 00:44:16,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:16,132 INFO L225 Difference]: With dead ends: 39 [2020-10-20 00:44:16,132 INFO L226 Difference]: Without dead ends: 23 [2020-10-20 00:44:16,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-10-20 00:44:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-20 00:44:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-20 00:44:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 00:44:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-20 00:44:16,137 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 22 [2020-10-20 00:44:16,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:16,137 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-20 00:44:16,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 00:44:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-20 00:44:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 00:44:16,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:16,138 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:16,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 00:44:16,139 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:16,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:16,139 INFO L82 PathProgramCache]: Analyzing trace with hash 571246699, now seen corresponding path program 1 times [2020-10-20 00:44:16,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:16,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442456474] [2020-10-20 00:44:16,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:16,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442456474] [2020-10-20 00:44:16,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911041154] [2020-10-20 00:44:16,318 INFO L95 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 [2020-10-20 00:44:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:16,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 32 conjunts are in the unsatisfiable core [2020-10-20 00:44:16,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:16,556 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 34 treesize of output 30 [2020-10-20 00:44:16,557 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:44:16,571 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:16,574 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-20 00:44:16,575 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:76 [2020-10-20 00:44:16,851 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 00:44:16,853 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:16,854 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 56 treesize of output 19 [2020-10-20 00:44:16,855 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:44:16,864 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:16,867 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-20 00:44:16,868 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:78, output treesize:33 [2020-10-20 00:44:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:18,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:18,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2020-10-20 00:44:18,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109891246] [2020-10-20 00:44:18,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-20 00:44:18,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:18,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-20 00:44:18,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=517, Unknown=1, NotChecked=0, Total=600 [2020-10-20 00:44:18,973 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 25 states. [2020-10-20 00:44:20,008 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-20 00:44:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:20,429 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-10-20 00:44:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 00:44:20,435 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 22 [2020-10-20 00:44:20,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:20,436 INFO L225 Difference]: With dead ends: 30 [2020-10-20 00:44:20,436 INFO L226 Difference]: Without dead ends: 25 [2020-10-20 00:44:20,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=286, Invalid=973, Unknown=1, NotChecked=0, Total=1260 [2020-10-20 00:44:20,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-20 00:44:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-20 00:44:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-20 00:44:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-10-20 00:44:20,442 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2020-10-20 00:44:20,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:20,443 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-10-20 00:44:20,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-20 00:44:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-10-20 00:44:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 00:44:20,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:44:20,444 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:44:20,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:20,647 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:44:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:44:20,648 INFO L82 PathProgramCache]: Analyzing trace with hash 722062576, now seen corresponding path program 2 times [2020-10-20 00:44:20,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:44:20,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613709133] [2020-10-20 00:44:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:44:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:44:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:44:20,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613709133] [2020-10-20 00:44:20,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106766406] [2020-10-20 00:44:20,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-10-20 00:44:20,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 00:44:20,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 00:44:20,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 51 conjunts are in the unsatisfiable core [2020-10-20 00:44:20,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:44:21,004 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 28 treesize of output 24 [2020-10-20 00:44:21,005 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:44:21,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:44:21,019 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 00:44:21,019 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2020-10-20 00:44:21,327 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:44:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-20 00:44:21,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:44:21,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 21 [2020-10-20 00:44:21,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898038851] [2020-10-20 00:44:21,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 00:44:21,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:44:21,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 00:44:21,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2020-10-20 00:44:21,394 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 22 states. [2020-10-20 00:44:22,184 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-20 00:44:22,687 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-20 00:44:23,481 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-20 00:44:23,701 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-20 00:44:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:44:23,702 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-10-20 00:44:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-20 00:44:23,702 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 24 [2020-10-20 00:44:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:44:23,703 INFO L225 Difference]: With dead ends: 30 [2020-10-20 00:44:23,703 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:44:23,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2020-10-20 00:44:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:44:23,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:44:23,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:44:23,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:44:23,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-10-20 00:44:23,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:44:23,706 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:44:23,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 00:44:23,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:44:23,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:44:23,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:44:23,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:44:24,078 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2020-10-20 00:44:24,528 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 68 [2020-10-20 00:44:25,199 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2020-10-20 00:44:25,207 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:44:25,207 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:44:25,208 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:44:25,208 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:44:25,208 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:44:25,208 INFO L277 CegarLoopResult]: At program point L53(lines 33 54) the Hoare annotation is: true [2020-10-20 00:44:25,208 INFO L274 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-10-20 00:44:25,208 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:44:25,208 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-20 00:44:25,209 INFO L274 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-10-20 00:44:25,209 INFO L270 CegarLoopResult]: At program point L25-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_get_dummy_#res.offset| 0)) (.cse1 (= |~#d1~0.offset| 0))) (or (and (= |~#d2~0.offset| 0) .cse0 (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) .cse1) (and (= |~#d1~0.base| |ULTIMATE.start_get_dummy_#res.base|) .cse0 .cse1))) [2020-10-20 00:44:25,209 INFO L274 CegarLoopResult]: For program point L25-4(line 25) no Hoare annotation was computed. [2020-10-20 00:44:25,209 INFO L274 CegarLoopResult]: For program point L25-6(line 25) no Hoare annotation was computed. [2020-10-20 00:44:25,210 INFO L270 CegarLoopResult]: At program point L25-7(lines 23 26) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|)) (.cse0 (= ULTIMATE.start_main_~pd1~0.offset 0)) (.cse2 (= |~#d1~0.offset| 0))) (or (and .cse0 .cse1 .cse2) (and (not (= |~#d1~0.base| |~#d2~0.base|)) (not .cse1) (not (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|)) .cse2) (and (= |~#d2~0.offset| 0) .cse0 (= |ULTIMATE.start_get_dummy_#res.offset| 0) (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|) .cse2))) [2020-10-20 00:44:25,210 INFO L270 CegarLoopResult]: At program point L46(lines 34 54) the Hoare annotation is: false [2020-10-20 00:44:25,210 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 44) no Hoare annotation was computed. [2020-10-20 00:44:25,210 INFO L270 CegarLoopResult]: At program point L42-3(lines 42 44) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~i~0 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset))) (.cse3 (= ULTIMATE.start_main_~pd1~0.offset 0)) (.cse4 (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)) (.cse5 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pa~0.base)) (.cse6 (= |~#d1~0.offset| 0))) (or (and .cse0 (exists ((aux_div_ULTIMATE.start_main_~pd1~0.offset_88 Int)) (let ((.cse1 (* 3 ULTIMATE.start_main_~pa~0.offset)) (.cse2 (* 4 aux_div_ULTIMATE.start_main_~pd1~0.offset_88))) (and (<= 0 (+ .cse1 .cse2)) (<= (+ .cse1 ULTIMATE.start_main_~pd2~0.offset .cse2) 0) (= (+ (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 4)) (* aux_div_ULTIMATE.start_main_~pd1~0.offset_88 (- 4)) 8) (- 4)) 4) ULTIMATE.start_main_~pd2~0.offset 8)) 2) (+ ULTIMATE.start_main_~pa~0.offset aux_div_ULTIMATE.start_main_~pd1~0.offset_88))))) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|) .cse6 (<= 0 ULTIMATE.start_main_~pd2~0.offset)) (and (= |~#d2~0.offset| 0) .cse0 .cse3 (= |ULTIMATE.start_get_dummy_#res.offset| 0) .cse4 .cse5 (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|) .cse6 (= ULTIMATE.start_main_~pd2~0.offset 0) (let ((.cse7 (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 1)) 8) (- 4)))) (= (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* .cse7 4) ULTIMATE.start_main_~pd2~0.offset 8)) .cse7)) (= (mod (* ULTIMATE.start_main_~pa~0.offset 3) (- 4)) 0)))) [2020-10-20 00:44:25,210 INFO L274 CegarLoopResult]: For program point L38(lines 38 48) no Hoare annotation was computed. [2020-10-20 00:44:25,210 INFO L274 CegarLoopResult]: For program point L42-4(lines 42 44) no Hoare annotation was computed. [2020-10-20 00:44:25,211 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 48) no Hoare annotation was computed. [2020-10-20 00:44:25,213 INFO L270 CegarLoopResult]: At program point L30(lines 28 31) the Hoare annotation is: (let ((.cse7 (<= 1 |ULTIMATE.start_check_#res|)) (.cse0 (<= ULTIMATE.start_main_~i~0 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset))) (.cse1 (= ULTIMATE.start_main_~pd1~0.offset 0)) (.cse8 (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)) (.cse9 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pa~0.base)) (.cse2 (= |~#d1~0.offset| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_get_dummy_#res.offset| 0) (= ULTIMATE.start_main_~pd1~0.base |~#d2~0.base|) .cse2 (exists ((aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 Int) (aux_div_ULTIMATE.start_main_~pa~0.offset_60 Int)) (let ((.cse5 (select |#memory_int| ULTIMATE.start_main_~pd2~0.base)) (.cse6 (* aux_div_ULTIMATE.start_main_~pa~0.offset_60 4))) (let ((.cse3 (* 4 aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55)) (.cse4 (select .cse5 (+ (* aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 4) .cse6 8)))) (and (< 0 (+ .cse3 4)) (<= ULTIMATE.start_main_~i~0 .cse4) (<= .cse3 0) (= aux_div_ULTIMATE.start_main_~pa~0.offset_60 (select .cse5 (+ ULTIMATE.start_main_~pd2~0.offset .cse6 8))) (<= .cse4 ULTIMATE.start_main_~i~0))))) (= |~#d2~0.offset| 0) .cse7 (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|) .cse8 (not (= |~#d1~0.base| |ULTIMATE.start_get_dummy_#res.base|)) .cse9 (= ULTIMATE.start_main_~pd2~0.offset 0) (let ((.cse10 (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 1)) 8) (- 4)))) (= (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* .cse10 4) ULTIMATE.start_main_~pd2~0.offset 8)) .cse10)) (= (mod (* ULTIMATE.start_main_~pa~0.offset 3) (- 4)) 0)) (and .cse7 .cse0 (exists ((ULTIMATE.start_main_~pa~0.offset Int) (aux_div_ULTIMATE.start_main_~pd1~0.offset_88 Int)) (let ((.cse14 (select |#memory_int| ULTIMATE.start_main_~pd2~0.base))) (let ((.cse12 (* 3 ULTIMATE.start_main_~pa~0.offset)) (.cse13 (* 4 aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) (.cse11 (select .cse14 ULTIMATE.start_main_~pa~0.offset))) (and (<= .cse11 ULTIMATE.start_main_~i~0) (<= 0 (+ .cse12 .cse13)) (<= (+ .cse12 ULTIMATE.start_main_~pd2~0.offset .cse13) 0) (= (+ (select .cse14 (+ (* (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 4)) (* aux_div_ULTIMATE.start_main_~pd1~0.offset_88 (- 4)) 8) (- 4)) 4) ULTIMATE.start_main_~pd2~0.offset 8)) 2) (+ ULTIMATE.start_main_~pa~0.offset aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) (<= ULTIMATE.start_main_~i~0 .cse11))))) (exists ((aux_div_ULTIMATE.start_main_~pd1~0.offset_88 Int)) (let ((.cse15 (* 3 ULTIMATE.start_main_~pa~0.offset)) (.cse16 (* 4 aux_div_ULTIMATE.start_main_~pd1~0.offset_88))) (and (<= 0 (+ .cse15 .cse16)) (<= (+ .cse15 ULTIMATE.start_main_~pd2~0.offset .cse16) 0) (= (+ (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 4)) (* aux_div_ULTIMATE.start_main_~pd1~0.offset_88 (- 4)) 8) (- 4)) 4) ULTIMATE.start_main_~pd2~0.offset 8)) 2) (+ ULTIMATE.start_main_~pa~0.offset aux_div_ULTIMATE.start_main_~pd1~0.offset_88))))) .cse1 .cse8 .cse9 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|) .cse2 (<= 0 ULTIMATE.start_main_~pd2~0.offset)))) [2020-10-20 00:44:25,214 INFO L274 CegarLoopResult]: For program point L14(lines 14 21) no Hoare annotation was computed. [2020-10-20 00:44:25,232 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,232 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,241 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,246 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,260 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,261 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,261 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,261 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,272 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:44:25 BoogieIcfgContainer [2020-10-20 00:44:25,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:44:25,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:44:25,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:44:25,276 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:44:25,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:56" (3/4) ... [2020-10-20 00:44:25,280 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:44:25,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:44:25,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 00:44:25,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:44:25,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:44:25,324 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((d2 == 0 && \result == 0) && \result == d2) && d1 == 0) || ((d1 == \result && \result == 0) && d1 == 0) [2020-10-20 00:44:25,325 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pd1 == 0 && pd1 == d1) && d1 == 0) || (((!(d1 == d2) && !(pd1 == d1)) && !(pd1 == \result)) && d1 == 0)) || ((((d2 == 0 && pd1 == 0) && \result == 0) && pd1 == d2) && d1 == 0) [2020-10-20 00:44:25,326 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((i <= unknown-#memory_int-unknown[pa][pa] && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 && 3 * pa + pd2 + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 <= 0) && unknown-#memory_int-unknown[pd2][(pa * -4 + aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8) / -4 * 4 + pd2 + 8] + 2 == pa + aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd1 == 0) && pd1 == pd2) && pd2 == pa) && pd1 == d1) && d1 == 0) && 0 <= pd2) || (((((((((((d2 == 0 && i <= unknown-#memory_int-unknown[pa][pa]) && pd1 == 0) && \result == 0) && pd1 == pd2) && pd2 == pa) && \result == d2) && pd1 == d2) && d1 == 0) && pd2 == 0) && unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8] == (pa * -1 + 8) / -4) && pa * 3 % -4 == 0) [2020-10-20 00:44:25,326 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((i <= unknown-#memory_int-unknown[pa][pa] && pd1 == 0) && \result == 0) && pd1 == d2) && d1 == 0) && (\exists aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 : int, aux_div_ULTIMATE.start_main_~pa~0.offset_60 : int :: (((0 < 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 + 4 && i <= unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4 + 8]) && 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 <= 0) && aux_div_ULTIMATE.start_main_~pa~0.offset_60 == unknown-#memory_int-unknown[pd2][pd2 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4 + 8]) && unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4 + 8] <= i)) && d2 == 0) && 1 <= \result) && pd1 == \result) && pd1 == pd2) && !(d1 == \result)) && pd2 == pa) && pd2 == 0) && unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8] == (pa * -1 + 8) / -4) && pa * 3 % -4 == 0) || (((((((((1 <= \result && i <= unknown-#memory_int-unknown[pa][pa]) && (\exists ULTIMATE.start_main_~pa~0.offset : int, aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (((unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset] <= i && 0 <= 3 * ULTIMATE.start_main_~pa~0.offset + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88) && 3 * ULTIMATE.start_main_~pa~0.offset + pd2 + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 <= 0) && unknown-#memory_int-unknown[pd2][(ULTIMATE.start_main_~pa~0.offset * -4 + aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8) / -4 * 4 + pd2 + 8] + 2 == ULTIMATE.start_main_~pa~0.offset + aux_div_ULTIMATE.start_main_~pd1~0.offset_88) && i <= unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset])) && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 && 3 * pa + pd2 + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 <= 0) && unknown-#memory_int-unknown[pd2][(pa * -4 + aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8) / -4 * 4 + pd2 + 8] + 2 == pa + aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd1 == 0) && pd1 == pd2) && pd2 == pa) && pd1 == d1) && d1 == 0) && 0 <= pd2) [2020-10-20 00:44:25,356 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:44:25,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:44:25,359 INFO L168 Benchmark]: Toolchain (without parser) took 30000.84 ms. Allocated memory was 39.3 MB in the beginning and 73.9 MB in the end (delta: 34.6 MB). Free memory was 17.0 MB in the beginning and 36.8 MB in the end (delta: -19.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,359 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 30.4 MB. Free memory was 6.6 MB in the beginning and 6.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.43 ms. Allocated memory was 39.3 MB in the beginning and 40.4 MB in the end (delta: 1.0 MB). Free memory was 16.1 MB in the beginning and 15.2 MB in the end (delta: 892.1 kB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.26 ms. Allocated memory is still 40.4 MB. Free memory was 15.2 MB in the beginning and 13.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,361 INFO L168 Benchmark]: Boogie Preprocessor took 29.83 ms. Allocated memory is still 40.4 MB. Free memory was 13.3 MB in the beginning and 11.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,362 INFO L168 Benchmark]: RCFGBuilder took 415.30 ms. Allocated memory was 40.4 MB in the beginning and 41.9 MB in the end (delta: 1.6 MB). Free memory was 11.6 MB in the beginning and 23.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,363 INFO L168 Benchmark]: TraceAbstraction took 28986.93 ms. Allocated memory was 41.9 MB in the beginning and 73.9 MB in the end (delta: 32.0 MB). Free memory was 23.3 MB in the beginning and 40.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,363 INFO L168 Benchmark]: Witness Printer took 81.63 ms. Allocated memory is still 73.9 MB. Free memory was 40.8 MB in the beginning and 36.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:44:25,366 INFO L339 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 30.4 MB. Free memory was 6.6 MB in the beginning and 6.6 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 417.43 ms. Allocated memory was 39.3 MB in the beginning and 40.4 MB in the end (delta: 1.0 MB). Free memory was 16.1 MB in the beginning and 15.2 MB in the end (delta: 892.1 kB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 58.26 ms. Allocated memory is still 40.4 MB. Free memory was 15.2 MB in the beginning and 13.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.83 ms. Allocated memory is still 40.4 MB. Free memory was 13.3 MB in the beginning and 11.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 415.30 ms. Allocated memory was 40.4 MB in the beginning and 41.9 MB in the end (delta: 1.6 MB). Free memory was 11.6 MB in the beginning and 23.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 28986.93 ms. Allocated memory was 41.9 MB in the beginning and 73.9 MB in the end (delta: 32.0 MB). Free memory was 23.3 MB in the beginning and 40.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 14.3 GB. * Witness Printer took 81.63 ms. Allocated memory is still 73.9 MB. Free memory was 40.8 MB in the beginning and 36.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((d2 == 0 && \result == 0) && \result == d2) && d1 == 0) || ((d1 == \result && \result == 0) && d1 == 0) - InvariantResult [Line: 42]: Loop Invariant [2020-10-20 00:44:25,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((i <= unknown-#memory_int-unknown[pa][pa] && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 && 3 * pa + pd2 + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 <= 0) && unknown-#memory_int-unknown[pd2][(pa * -4 + aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8) / -4 * 4 + pd2 + 8] + 2 == pa + aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd1 == 0) && pd1 == pd2) && pd2 == pa) && pd1 == d1) && d1 == 0) && 0 <= pd2) || (((((((((((d2 == 0 && i <= unknown-#memory_int-unknown[pa][pa]) && pd1 == 0) && \result == 0) && pd1 == pd2) && pd2 == pa) && \result == d2) && pd1 == d2) && d1 == 0) && pd2 == 0) && unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8] == (pa * -1 + 8) / -4) && pa * 3 % -4 == 0) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((pd1 == 0 && pd1 == d1) && d1 == 0) || (((!(d1 == d2) && !(pd1 == d1)) && !(pd1 == \result)) && d1 == 0)) || ((((d2 == 0 && pd1 == 0) && \result == 0) && pd1 == d2) && d1 == 0) - InvariantResult [Line: 28]: Loop Invariant [2020-10-20 00:44:25,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2020-10-20 00:44:25,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2020-10-20 00:44:25,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2020-10-20 00:44:25,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2020-10-20 00:44:25,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 00:44:25,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((i <= unknown-#memory_int-unknown[pa][pa] && pd1 == 0) && \result == 0) && pd1 == d2) && d1 == 0) && (\exists aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 : int, aux_div_ULTIMATE.start_main_~pa~0.offset_60 : int :: (((0 < 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 + 4 && i <= unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4 + 8]) && 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 <= 0) && aux_div_ULTIMATE.start_main_~pa~0.offset_60 == unknown-#memory_int-unknown[pd2][pd2 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4 + 8]) && unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4 + 8] <= i)) && d2 == 0) && 1 <= \result) && pd1 == \result) && pd1 == pd2) && !(d1 == \result)) && pd2 == pa) && pd2 == 0) && unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8] == (pa * -1 + 8) / -4) && pa * 3 % -4 == 0) || (((((((((1 <= \result && i <= unknown-#memory_int-unknown[pa][pa]) && (\exists ULTIMATE.start_main_~pa~0.offset : int, aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (((unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset] <= i && 0 <= 3 * ULTIMATE.start_main_~pa~0.offset + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88) && 3 * ULTIMATE.start_main_~pa~0.offset + pd2 + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 <= 0) && unknown-#memory_int-unknown[pd2][(ULTIMATE.start_main_~pa~0.offset * -4 + aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8) / -4 * 4 + pd2 + 8] + 2 == ULTIMATE.start_main_~pa~0.offset + aux_div_ULTIMATE.start_main_~pd1~0.offset_88) && i <= unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset])) && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 && 3 * pa + pd2 + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 <= 0) && unknown-#memory_int-unknown[pd2][(pa * -4 + aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8) / -4 * 4 + pd2 + 8] + 2 == pa + aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd1 == 0) && pd1 == pd2) && pd2 == pa) && pd1 == d1) && d1 == 0) && 0 <= pd2) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.5s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 592 SDslu, 369 SDs, 0 SdLazy, 1033 SolverSat, 219 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1732 ImplicationChecksByTransitivity, 19.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=6, 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, 7 MinimizatonAttempts, 100 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 28 NumberOfFragments, 471 HoareAnnotationTreeSize, 6 FomulaSimplifications, 9386 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1666 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 210 ConstructedInterpolants, 21 QuantifiedInterpolants, 53352 SizeOfPredicates, 62 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 159 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 32/92 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...