./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/interleave_bits.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer --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 b8ee9428aad4e911e10cde7de8379310dde1b70a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer --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 b8ee9428aad4e911e10cde7de8379310dde1b70a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:52:49,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:52:49,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:52:49,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:52:49,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:52:49,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:52:49,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:52:49,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:52:49,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:52:49,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:52:49,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:52:49,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:52:49,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:52:49,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:52:49,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:52:49,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:52:49,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:52:49,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:52:49,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:52:49,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:52:49,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:52:49,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:52:49,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:52:49,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:52:49,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:52:49,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:52:49,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:52:49,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:52:49,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:52:49,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:52:49,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:52:49,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:52:49,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:52:49,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:52:49,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:52:49,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:52:49,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:52:49,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:52:49,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:52:49,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:52:49,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:52:49,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:52:49,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:52:49,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:52:49,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:52:49,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:52:49,786 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:52:49,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:52:49,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:52:49,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:52:49,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:52:49,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:52:49,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:52:49,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:52:49,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:52:49,790 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:52:49,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:52:49,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:52:49,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:52:49,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:52:49,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:52:49,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:52:49,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:52:49,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:52:49,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:52:49,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:52:49,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:52:49,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:52:49,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:52:49,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:52:49,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:52:49,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8ee9428aad4e911e10cde7de8379310dde1b70a [2020-12-01 15:52:50,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:52:50,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:52:50,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:52:50,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:52:50,140 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:52:50,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/../../sv-benchmarks/c/bitvector/interleave_bits.i [2020-12-01 15:52:50,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/1b0547252/511f0543c90342a2a7391575b017730d/FLAG5807e7206 [2020-12-01 15:52:50,774 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:52:50,774 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/sv-benchmarks/c/bitvector/interleave_bits.i [2020-12-01 15:52:50,783 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/1b0547252/511f0543c90342a2a7391575b017730d/FLAG5807e7206 [2020-12-01 15:52:51,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/1b0547252/511f0543c90342a2a7391575b017730d [2020-12-01 15:52:51,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:52:51,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:52:51,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:52:51,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:52:51,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:52:51,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1374e353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51, skipping insertion in model container [2020-12-01 15:52:51,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:52:51,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:52:51,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:52:51,413 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:52:51,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:52:51,491 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:52:51,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51 WrapperNode [2020-12-01 15:52:51,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:52:51,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:52:51,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:52:51,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:52:51,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:52:51,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:52:51,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:52:51,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:52:51,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... [2020-12-01 15:52:51,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:52:51,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:52:51,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:52:51,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:52:51,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/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 [2020-12-01 15:52:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:52:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:52:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:52:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:52:51,864 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:52:51,865 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:52:51,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:52:51 BoogieIcfgContainer [2020-12-01 15:52:51,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:52:51,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:52:51,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:52:51,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:52:51,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:52:51" (1/3) ... [2020-12-01 15:52:51,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f9fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:52:51, skipping insertion in model container [2020-12-01 15:52:51,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:52:51" (2/3) ... [2020-12-01 15:52:51,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f9fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:52:51, skipping insertion in model container [2020-12-01 15:52:51,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:52:51" (3/3) ... [2020-12-01 15:52:51,877 INFO L111 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2020-12-01 15:52:51,890 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:52:51,893 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:52:51,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:52:51,930 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:52:51,930 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:52:51,930 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:52:51,931 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:52:51,931 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:52:51,931 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:52:51,931 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:52:51,931 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:52:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-01 15:52:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:52:51,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:51,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:51,952 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:51,958 INFO L82 PathProgramCache]: Analyzing trace with hash 239624332, now seen corresponding path program 1 times [2020-12-01 15:52:51,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:51,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566509574] [2020-12-01 15:52:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:52,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566509574] [2020-12-01 15:52:52,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:52:52,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:52:52,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472457828] [2020-12-01 15:52:52,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:52:52,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:52,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:52:52,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:52,209 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2020-12-01 15:52:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:52,246 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-01 15:52:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:52:52,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-01 15:52:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:52,271 INFO L225 Difference]: With dead ends: 23 [2020-12-01 15:52:52,271 INFO L226 Difference]: Without dead ends: 10 [2020-12-01 15:52:52,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:52:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-01 15:52:52,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-01 15:52:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:52:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 15:52:52,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-12-01 15:52:52,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:52,330 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-01 15:52:52,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:52:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 15:52:52,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:52:52,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:52,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:52,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:52:52,333 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:52,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:52,339 INFO L82 PathProgramCache]: Analyzing trace with hash 438817201, now seen corresponding path program 1 times [2020-12-01 15:52:52,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:52,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452796828] [2020-12-01 15:52:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:52,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452796828] [2020-12-01 15:52:52,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790614189] [2020-12-01 15:52:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/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 [2020-12-01 15:52:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:52,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:52:52,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:52,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:52,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-01 15:52:52,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103986785] [2020-12-01 15:52:52,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:52:52,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:52,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:52:52,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:52:52,716 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2020-12-01 15:52:52,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:52,739 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-12-01 15:52:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:52:52,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-01 15:52:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:52,755 INFO L225 Difference]: With dead ends: 17 [2020-12-01 15:52:52,756 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:52:52,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:52:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:52:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-01 15:52:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-01 15:52:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 15:52:52,760 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2020-12-01 15:52:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:52,761 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-12-01 15:52:52,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:52:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 15:52:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:52:52,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:52,762 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:52,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:52:52,982 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1976138452, now seen corresponding path program 2 times [2020-12-01 15:52:52,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:52,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537299492] [2020-12-01 15:52:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:53,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537299492] [2020-12-01 15:52:53,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668262519] [2020-12-01 15:52:53,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/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 [2020-12-01 15:52:53,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:52:53,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:53,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:52:53,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:53,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:53,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-01 15:52:53,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649274325] [2020-12-01 15:52:53,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:52:53,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:53,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:52:53,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:52:53,409 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2020-12-01 15:52:53,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:53,454 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-12-01 15:52:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:52:53,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-01 15:52:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:53,458 INFO L225 Difference]: With dead ends: 18 [2020-12-01 15:52:53,458 INFO L226 Difference]: Without dead ends: 12 [2020-12-01 15:52:53,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:52:53,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-01 15:52:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-01 15:52:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:52:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-12-01 15:52:53,470 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-12-01 15:52:53,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:53,471 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-12-01 15:52:53,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:52:53,471 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-12-01 15:52:53,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:52:53,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:53,472 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:53,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:53,687 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:53,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:53,687 INFO L82 PathProgramCache]: Analyzing trace with hash 469647633, now seen corresponding path program 3 times [2020-12-01 15:52:53,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:53,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584495824] [2020-12-01 15:52:53,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:53,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584495824] [2020-12-01 15:52:53,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180040254] [2020-12-01 15:52:53,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/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 [2020-12-01 15:52:53,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-01 15:52:53,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:53,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:52:53,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:54,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:54,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-01 15:52:54,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510532119] [2020-12-01 15:52:54,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:52:54,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:54,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:52:54,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:52:54,004 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 7 states. [2020-12-01 15:52:54,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:54,046 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-12-01 15:52:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:52:54,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-01 15:52:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:54,048 INFO L225 Difference]: With dead ends: 19 [2020-12-01 15:52:54,049 INFO L226 Difference]: Without dead ends: 13 [2020-12-01 15:52:54,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:52:54,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-01 15:52:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-01 15:52:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:52:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-01 15:52:54,058 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-12-01 15:52:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:54,059 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-01 15:52:54,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:52:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-01 15:52:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:52:54,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:54,062 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:54,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:54,278 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:54,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1020395060, now seen corresponding path program 4 times [2020-12-01 15:52:54,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:54,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185247481] [2020-12-01 15:52:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:54,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185247481] [2020-12-01 15:52:54,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388957733] [2020-12-01 15:52:54,374 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/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 [2020-12-01 15:52:54,413 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-01 15:52:54,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:54,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:52:54,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:54,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:54,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-01 15:52:54,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135612719] [2020-12-01 15:52:54,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:52:54,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:54,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:52:54,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:52:54,467 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 8 states. [2020-12-01 15:52:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:54,504 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-12-01 15:52:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:52:54,505 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-12-01 15:52:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:54,506 INFO L225 Difference]: With dead ends: 20 [2020-12-01 15:52:54,506 INFO L226 Difference]: Without dead ends: 14 [2020-12-01 15:52:54,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:52:54,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-01 15:52:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-01 15:52:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:52:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-12-01 15:52:54,511 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-12-01 15:52:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:54,511 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-12-01 15:52:54,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:52:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-12-01 15:52:54,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:52:54,512 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:54,512 INFO L422 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:54,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:54,738 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:54,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:54,739 INFO L82 PathProgramCache]: Analyzing trace with hash 32921713, now seen corresponding path program 5 times [2020-12-01 15:52:54,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:54,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022117924] [2020-12-01 15:52:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:54,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022117924] [2020-12-01 15:52:54,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395973327] [2020-12-01 15:52:54,893 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:54,943 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-01 15:52:54,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:54,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:52:54,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:54,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:54,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:54,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-01 15:52:54,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054132508] [2020-12-01 15:52:54,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:52:54,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:54,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:52:54,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:52:54,994 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 9 states. [2020-12-01 15:52:55,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:55,035 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-12-01 15:52:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:52:55,038 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-12-01 15:52:55,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:55,039 INFO L225 Difference]: With dead ends: 21 [2020-12-01 15:52:55,039 INFO L226 Difference]: Without dead ends: 15 [2020-12-01 15:52:55,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:52:55,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-01 15:52:55,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-01 15:52:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-01 15:52:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-12-01 15:52:55,044 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-12-01 15:52:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:55,044 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-12-01 15:52:55,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:52:55,045 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-12-01 15:52:55,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 15:52:55,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:55,046 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:55,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-01 15:52:55,274 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:55,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:55,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1673996692, now seen corresponding path program 6 times [2020-12-01 15:52:55,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:55,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092004333] [2020-12-01 15:52:55,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:55,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092004333] [2020-12-01 15:52:55,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234787286] [2020-12-01 15:52:55,428 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:55,496 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-12-01 15:52:55,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:55,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:52:55,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:55,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:55,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-01 15:52:55,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837355189] [2020-12-01 15:52:55,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:52:55,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:55,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:52:55,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:52:55,603 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2020-12-01 15:52:55,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:55,667 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-12-01 15:52:55,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:52:55,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-12-01 15:52:55,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:55,669 INFO L225 Difference]: With dead ends: 22 [2020-12-01 15:52:55,670 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:52:55,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:52:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:52:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:52:55,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:52:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-01 15:52:55,679 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-12-01 15:52:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:55,680 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-01 15:52:55,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:52:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-01 15:52:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:52:55,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:55,682 INFO L422 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:55,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:55,910 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:55,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:55,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1246107601, now seen corresponding path program 7 times [2020-12-01 15:52:55,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:55,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254069115] [2020-12-01 15:52:55,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:56,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254069115] [2020-12-01 15:52:56,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474747391] [2020-12-01 15:52:56,047 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:56,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 15:52:56,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:56,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:56,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-01 15:52:56,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049521550] [2020-12-01 15:52:56,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-01 15:52:56,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:56,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-01 15:52:56,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:52:56,176 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 11 states. [2020-12-01 15:52:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:56,244 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-12-01 15:52:56,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-01 15:52:56,244 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-12-01 15:52:56,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:56,246 INFO L225 Difference]: With dead ends: 23 [2020-12-01 15:52:56,246 INFO L226 Difference]: Without dead ends: 17 [2020-12-01 15:52:56,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:52:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-01 15:52:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-01 15:52:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-01 15:52:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-01 15:52:56,258 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-12-01 15:52:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:56,258 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-01 15:52:56,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-01 15:52:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-01 15:52:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:52:56,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:56,260 INFO L422 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:56,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:56,486 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1575027468, now seen corresponding path program 8 times [2020-12-01 15:52:56,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:56,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133576671] [2020-12-01 15:52:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:56,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133576671] [2020-12-01 15:52:56,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490881100] [2020-12-01 15:52:56,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:56,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:52:56,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:56,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:52:56,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:56,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:56,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-12-01 15:52:56,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176405421] [2020-12-01 15:52:56,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 15:52:56,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 15:52:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:52:56,817 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 12 states. [2020-12-01 15:52:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:56,882 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-12-01 15:52:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-01 15:52:56,883 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2020-12-01 15:52:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:56,885 INFO L225 Difference]: With dead ends: 24 [2020-12-01 15:52:56,885 INFO L226 Difference]: Without dead ends: 18 [2020-12-01 15:52:56,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:52:56,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-01 15:52:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-01 15:52:56,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-01 15:52:56,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-01 15:52:56,893 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2020-12-01 15:52:56,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:56,894 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-01 15:52:56,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 15:52:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-01 15:52:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:52:56,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:56,896 INFO L422 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:57,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-01 15:52:57,122 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:57,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1113358543, now seen corresponding path program 9 times [2020-12-01 15:52:57,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:57,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648433529] [2020-12-01 15:52:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:57,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648433529] [2020-12-01 15:52:57,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361364175] [2020-12-01 15:52:57,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:57,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-01 15:52:57,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:57,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 15:52:57,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:57,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:57,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2020-12-01 15:52:57,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607546907] [2020-12-01 15:52:57,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-01 15:52:57,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:57,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-01 15:52:57,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:52:57,584 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 13 states. [2020-12-01 15:52:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:57,676 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-12-01 15:52:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-01 15:52:57,677 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2020-12-01 15:52:57,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:57,680 INFO L225 Difference]: With dead ends: 25 [2020-12-01 15:52:57,680 INFO L226 Difference]: Without dead ends: 19 [2020-12-01 15:52:57,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:52:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-01 15:52:57,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-01 15:52:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:52:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-01 15:52:57,696 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-12-01 15:52:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:57,697 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-01 15:52:57,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-01 15:52:57,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-01 15:52:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 15:52:57,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:57,698 INFO L422 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:57,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:57,905 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:57,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:57,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021036, now seen corresponding path program 10 times [2020-12-01 15:52:57,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:57,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924136004] [2020-12-01 15:52:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:58,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924136004] [2020-12-01 15:52:58,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141044082] [2020-12-01 15:52:58,109 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:58,159 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-01 15:52:58,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:58,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-01 15:52:58,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:58,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:58,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2020-12-01 15:52:58,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554755300] [2020-12-01 15:52:58,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 15:52:58,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:58,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:52:58,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:52:58,243 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 14 states. [2020-12-01 15:52:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:58,334 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-12-01 15:52:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 15:52:58,334 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-12-01 15:52:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:58,335 INFO L225 Difference]: With dead ends: 26 [2020-12-01 15:52:58,335 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:52:58,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:52:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:52:58,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-01 15:52:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:52:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-01 15:52:58,341 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2020-12-01 15:52:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:58,341 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-01 15:52:58,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 15:52:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-01 15:52:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 15:52:58,342 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:58,342 INFO L422 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:58,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:58,571 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:58,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:58,571 INFO L82 PathProgramCache]: Analyzing trace with hash -817590639, now seen corresponding path program 11 times [2020-12-01 15:52:58,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:58,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303500699] [2020-12-01 15:52:58,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:58,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303500699] [2020-12-01 15:52:58,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190223537] [2020-12-01 15:52:58,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:59,037 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-12-01 15:52:59,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:59,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 36 conjunts are in the unsatisfiable core [2020-12-01 15:52:59,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:52:59,250 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:59,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:52:59,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2020-12-01 15:52:59,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121465469] [2020-12-01 15:52:59,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-01 15:52:59,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:52:59,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-01 15:52:59,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-12-01 15:52:59,253 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 15 states. [2020-12-01 15:52:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:52:59,376 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-12-01 15:52:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-01 15:52:59,377 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-12-01 15:52:59,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:52:59,378 INFO L225 Difference]: With dead ends: 27 [2020-12-01 15:52:59,378 INFO L226 Difference]: Without dead ends: 21 [2020-12-01 15:52:59,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-12-01 15:52:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-01 15:52:59,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-01 15:52:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-01 15:52:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-12-01 15:52:59,382 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2020-12-01 15:52:59,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:52:59,383 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-12-01 15:52:59,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-01 15:52:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-12-01 15:52:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:52:59,384 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:52:59,384 INFO L422 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:52:59,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-01 15:52:59,587 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:52:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:52:59,588 INFO L82 PathProgramCache]: Analyzing trace with hash 2024891468, now seen corresponding path program 12 times [2020-12-01 15:52:59,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:52:59,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363300264] [2020-12-01 15:52:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:52:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:52:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:52:59,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363300264] [2020-12-01 15:52:59,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26124782] [2020-12-01 15:52:59,837 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:52:59,957 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2020-12-01 15:52:59,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:52:59,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 34 conjunts are in the unsatisfiable core [2020-12-01 15:52:59,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:00,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:00,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2020-12-01 15:53:00,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343825133] [2020-12-01 15:53:00,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-01 15:53:00,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:00,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-01 15:53:00,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:53:00,155 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 16 states. [2020-12-01 15:53:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:00,269 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-12-01 15:53:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-01 15:53:00,270 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-12-01 15:53:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:00,271 INFO L225 Difference]: With dead ends: 28 [2020-12-01 15:53:00,271 INFO L226 Difference]: Without dead ends: 22 [2020-12-01 15:53:00,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:53:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-01 15:53:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-01 15:53:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:53:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-12-01 15:53:00,276 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2020-12-01 15:53:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:00,276 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-12-01 15:53:00,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-01 15:53:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-12-01 15:53:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:53:00,277 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:00,277 INFO L422 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:00,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-01 15:53:00,482 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:00,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:00,482 INFO L82 PathProgramCache]: Analyzing trace with hash -52476431, now seen corresponding path program 13 times [2020-12-01 15:53:00,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:00,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3165309] [2020-12-01 15:53:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:00,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3165309] [2020-12-01 15:53:00,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861627166] [2020-12-01 15:53:00,723 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:00,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-01 15:53:00,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:00,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:00,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2020-12-01 15:53:00,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84112200] [2020-12-01 15:53:00,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-01 15:53:00,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:00,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-01 15:53:00,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-12-01 15:53:00,822 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 17 states. [2020-12-01 15:53:00,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:00,981 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-12-01 15:53:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-01 15:53:00,982 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2020-12-01 15:53:00,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:00,983 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:53:00,983 INFO L226 Difference]: Without dead ends: 23 [2020-12-01 15:53:00,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-12-01 15:53:00,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-01 15:53:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-01 15:53:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-01 15:53:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-12-01 15:53:00,991 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2020-12-01 15:53:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:00,992 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-12-01 15:53:00,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-01 15:53:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-12-01 15:53:00,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 15:53:00,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:00,993 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:01,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-01 15:53:01,218 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:01,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:01,219 INFO L82 PathProgramCache]: Analyzing trace with hash -26371860, now seen corresponding path program 14 times [2020-12-01 15:53:01,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:01,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348132344] [2020-12-01 15:53:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:01,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348132344] [2020-12-01 15:53:01,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588931630] [2020-12-01 15:53:01,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:01,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:53:01,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:01,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-01 15:53:01,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:01,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:01,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2020-12-01 15:53:01,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137582671] [2020-12-01 15:53:01,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-01 15:53:01,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:01,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-01 15:53:01,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-01 15:53:01,609 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 18 states. [2020-12-01 15:53:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:01,775 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-12-01 15:53:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-01 15:53:01,776 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2020-12-01 15:53:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:01,776 INFO L225 Difference]: With dead ends: 30 [2020-12-01 15:53:01,776 INFO L226 Difference]: Without dead ends: 24 [2020-12-01 15:53:01,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-01 15:53:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-01 15:53:01,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-01 15:53:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 15:53:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-12-01 15:53:01,780 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2020-12-01 15:53:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:01,781 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-12-01 15:53:01,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-01 15:53:01,781 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-12-01 15:53:01,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 15:53:01,782 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:01,782 INFO L422 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:02,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:02,002 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:02,003 INFO L82 PathProgramCache]: Analyzing trace with hash 782869841, now seen corresponding path program 15 times [2020-12-01 15:53:02,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:02,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132505769] [2020-12-01 15:53:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:02,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132505769] [2020-12-01 15:53:02,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635605619] [2020-12-01 15:53:02,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:02,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2020-12-01 15:53:02,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:02,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 40 conjunts are in the unsatisfiable core [2020-12-01 15:53:02,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:02,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:02,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2020-12-01 15:53:02,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591615344] [2020-12-01 15:53:02,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-01 15:53:02,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:02,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-01 15:53:02,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:53:02,640 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 19 states. [2020-12-01 15:53:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:02,842 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-12-01 15:53:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-01 15:53:02,843 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 23 [2020-12-01 15:53:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:02,848 INFO L225 Difference]: With dead ends: 31 [2020-12-01 15:53:02,848 INFO L226 Difference]: Without dead ends: 25 [2020-12-01 15:53:02,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:53:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-01 15:53:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-01 15:53:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-01 15:53:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-12-01 15:53:02,862 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2020-12-01 15:53:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:02,863 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-12-01 15:53:02,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-01 15:53:02,864 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-12-01 15:53:02,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:53:02,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:02,864 INFO L422 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:03,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-01 15:53:03,065 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:03,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:03,065 INFO L82 PathProgramCache]: Analyzing trace with hash 99558796, now seen corresponding path program 16 times [2020-12-01 15:53:03,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:03,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670618703] [2020-12-01 15:53:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:03,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:03,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:03,112 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:03,112 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:53:03,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-01 15:53:03,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:53:03 BoogieIcfgContainer [2020-12-01 15:53:03,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:53:03,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:53:03,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:53:03,154 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:53:03,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:52:51" (3/4) ... [2020-12-01 15:53:03,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:53:03,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:53:03,160 INFO L168 Benchmark]: Toolchain (without parser) took 12043.98 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 62.5 MB in the beginning and 53.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:03,160 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 71.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:53:03,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.03 ms. Allocated memory is still 94.4 MB. Free memory was 62.3 MB in the beginning and 71.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:03,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.21 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:03,162 INFO L168 Benchmark]: Boogie Preprocessor took 29.18 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:03,162 INFO L168 Benchmark]: RCFGBuilder took 295.20 ms. Allocated memory is still 94.4 MB. Free memory was 68.4 MB in the beginning and 57.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:03,163 INFO L168 Benchmark]: TraceAbstraction took 11284.43 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 57.0 MB in the beginning and 54.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:53:03,164 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 136.3 MB. Free memory was 54.2 MB in the beginning and 53.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:53:03,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 71.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.03 ms. Allocated memory is still 94.4 MB. Free memory was 62.3 MB in the beginning and 71.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.21 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.18 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 295.20 ms. Allocated memory is still 94.4 MB. Free memory was 68.4 MB in the beginning and 57.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11284.43 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 57.0 MB in the beginning and 54.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 136.3 MB. Free memory was 54.2 MB in the beginning and 53.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 56, overapproximation of bitwiseAnd at line 47. Possible FailurePath: [L34] unsigned short x = __VERIFIER_nondet_ushort(); [L35] unsigned short y = __VERIFIER_nondet_ushort(); [L36] unsigned int xx; [L37] unsigned int yy; [L38] unsigned int zz; [L39] unsigned int z = 0; [L40] unsigned int i = 0; [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND TRUE i < sizeof(x) * 8 [L42] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L43] i += 1U [L41] COND FALSE !(i < sizeof(x) * 8) [L45] xx = x [L46] yy = y [L47] xx = (xx | (xx << 8u)) & 16711935U [L48] xx = (xx | (xx << 4u)) & 252645135U [L49] xx = (xx | (xx << 2u)) & 858993459U [L50] xx = (xx | (xx << 1u)) & 1431655765U [L51] yy = (yy | (yy << 8u)) & 16711935U [L52] yy = (yy | (yy << 4u)) & 252645135U [L53] yy = (yy | (yy << 2u)) & 858993459U [L54] yy = (yy | (yy << 1u)) & 1431655765U [L56] zz = xx | (yy << 1U) [L16] COND TRUE !(cond) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "interleave_bits.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.1s, OverallIterations: 17, TraceHistogramMax: 16, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 131 SDtfs, 0 SDslu, 801 SDs, 0 SdLazy, 1762 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 204 SyntacticMatches, 38 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 512 NumberOfCodeBlocks, 512 NumberOfCodeBlocksAsserted, 70 NumberOfCheckSat, 457 ConstructedInterpolants, 0 QuantifiedInterpolants, 34101 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1005 ConjunctsInSsa, 314 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1360 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:53:06,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:53:06,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:53:06,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:53:06,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:53:06,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:53:06,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:53:06,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:53:06,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:53:06,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:53:06,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:53:06,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:53:06,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:53:06,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:53:06,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:53:06,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:53:06,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:53:06,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:53:06,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:53:06,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:53:06,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:53:06,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:53:06,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:53:06,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:53:06,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:53:06,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:53:06,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:53:06,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:53:06,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:53:06,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:53:06,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:53:06,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:53:06,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:53:06,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:53:06,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:53:06,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:53:06,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:53:06,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:53:06,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:53:06,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:53:06,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:53:06,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:53:06,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:53:06,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:53:06,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:53:06,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:53:06,195 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:53:06,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:53:06,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:53:06,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:53:06,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:53:06,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:53:06,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:53:06,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:53:06,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:53:06,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:53:06,198 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:53:06,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:53:06,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:53:06,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:53:06,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:53:06,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:53:06,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:53:06,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:53:06,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:53:06,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:53:06,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:53:06,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:53:06,201 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:53:06,201 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:53:06,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:53:06,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:53:06,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:53:06,202 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8ee9428aad4e911e10cde7de8379310dde1b70a [2020-12-01 15:53:06,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:53:06,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:53:06,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:53:06,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:53:06,731 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:53:06,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/../../sv-benchmarks/c/bitvector/interleave_bits.i [2020-12-01 15:53:06,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/fca2c235f/836a44f545cf4850ac0e7d864b6d81cb/FLAGbb0c290f3 [2020-12-01 15:53:07,430 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:53:07,431 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/sv-benchmarks/c/bitvector/interleave_bits.i [2020-12-01 15:53:07,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/fca2c235f/836a44f545cf4850ac0e7d864b6d81cb/FLAGbb0c290f3 [2020-12-01 15:53:07,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/data/fca2c235f/836a44f545cf4850ac0e7d864b6d81cb [2020-12-01 15:53:07,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:53:07,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:53:07,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:07,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:53:07,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:53:07,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:07" (1/1) ... [2020-12-01 15:53:07,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30bfa493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:07, skipping insertion in model container [2020-12-01 15:53:07,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:07" (1/1) ... [2020-12-01 15:53:07,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:53:07,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:53:08,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:08,038 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:53:08,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:08,119 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:53:08,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08 WrapperNode [2020-12-01 15:53:08,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:08,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:08,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:53:08,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:53:08,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:08,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:53:08,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:53:08,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:53:08,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... [2020-12-01 15:53:08,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:53:08,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:53:08,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:53:08,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:53:08,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/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 [2020-12-01 15:53:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:53:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:53:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:53:08,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:53:08,708 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:53:08,709 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:53:08,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:08 BoogieIcfgContainer [2020-12-01 15:53:08,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:53:08,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:53:08,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:53:08,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:53:08,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:53:07" (1/3) ... [2020-12-01 15:53:08,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60270d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:53:08, skipping insertion in model container [2020-12-01 15:53:08,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:08" (2/3) ... [2020-12-01 15:53:08,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60270d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:53:08, skipping insertion in model container [2020-12-01 15:53:08,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:08" (3/3) ... [2020-12-01 15:53:08,720 INFO L111 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2020-12-01 15:53:08,743 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:53:08,746 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:53:08,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:53:08,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:53:08,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:53:08,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:53:08,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:53:08,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:53:08,848 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:53:08,848 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:53:08,848 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:53:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-01 15:53:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:53:08,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:08,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:08,885 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:08,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:08,906 INFO L82 PathProgramCache]: Analyzing trace with hash 239624332, now seen corresponding path program 1 times [2020-12-01 15:53:08,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:53:08,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807842786] [2020-12-01 15:53:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 15:53:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:09,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:53:09,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:09,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:53:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:09,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807842786] [2020-12-01 15:53:09,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:53:09,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-01 15:53:09,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330331616] [2020-12-01 15:53:09,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:53:09,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:53:09,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:53:09,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:53:09,190 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2020-12-01 15:53:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:09,228 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2020-12-01 15:53:09,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:53:09,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-01 15:53:09,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:09,240 INFO L225 Difference]: With dead ends: 24 [2020-12-01 15:53:09,240 INFO L226 Difference]: Without dead ends: 11 [2020-12-01 15:53:09,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:53:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-01 15:53:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-01 15:53:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-01 15:53:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 15:53:09,280 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2020-12-01 15:53:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:09,281 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-12-01 15:53:09,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:53:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 15:53:09,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:53:09,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:09,297 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:09,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:53:09,507 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:09,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:09,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1976138452, now seen corresponding path program 1 times [2020-12-01 15:53:09,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:53:09,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119599569] [2020-12-01 15:53:09,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 15:53:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:09,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:53:09,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:09,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:53:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:09,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119599569] [2020-12-01 15:53:09,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:09,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-01 15:53:09,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669717058] [2020-12-01 15:53:09,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:53:09,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:53:09,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:53:09,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:53:09,773 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 8 states. [2020-12-01 15:53:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:09,962 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-12-01 15:53:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:53:09,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-01 15:53:09,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:09,964 INFO L225 Difference]: With dead ends: 21 [2020-12-01 15:53:09,964 INFO L226 Difference]: Without dead ends: 15 [2020-12-01 15:53:09,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:53:09,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-01 15:53:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-01 15:53:09,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-01 15:53:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-12-01 15:53:09,971 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-12-01 15:53:09,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:09,971 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-12-01 15:53:09,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:53:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-12-01 15:53:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 15:53:09,973 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:09,973 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:10,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:53:10,190 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:10,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:10,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1673996692, now seen corresponding path program 2 times [2020-12-01 15:53:10,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:53:10,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599653897] [2020-12-01 15:53:10,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 15:53:10,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:53:10,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:10,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:53:10,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:10,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:53:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:10,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599653897] [2020-12-01 15:53:10,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:10,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-12-01 15:53:10,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402253689] [2020-12-01 15:53:10,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-01 15:53:10,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:53:10,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-01 15:53:10,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:53:10,719 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 16 states. [2020-12-01 15:53:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:11,346 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-12-01 15:53:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-01 15:53:11,347 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2020-12-01 15:53:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:11,350 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:53:11,350 INFO L226 Difference]: Without dead ends: 23 [2020-12-01 15:53:11,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2020-12-01 15:53:11,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-01 15:53:11,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-12-01 15:53:11,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-01 15:53:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-12-01 15:53:11,378 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 14 [2020-12-01 15:53:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:11,379 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-12-01 15:53:11,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-01 15:53:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-12-01 15:53:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 15:53:11,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:11,382 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:11,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:53:11,595 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:11,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:11,595 INFO L82 PathProgramCache]: Analyzing trace with hash -26371860, now seen corresponding path program 3 times [2020-12-01 15:53:11,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:53:11,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308675368] [2020-12-01 15:53:11,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 15:53:11,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2020-12-01 15:53:11,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:11,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 15:53:11,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:12,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:53:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:13,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308675368] [2020-12-01 15:53:13,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:13,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2020-12-01 15:53:13,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156384792] [2020-12-01 15:53:13,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-01 15:53:13,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:53:13,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-01 15:53:13,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2020-12-01 15:53:13,247 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 32 states. [2020-12-01 15:53:13,758 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-01 15:53:14,037 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-01 15:53:14,341 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-01 15:53:14,551 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 7 [2020-12-01 15:53:14,753 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 7 [2020-12-01 15:53:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:16,000 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2020-12-01 15:53:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-01 15:53:16,000 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 22 [2020-12-01 15:53:16,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:53:16,001 INFO L225 Difference]: With dead ends: 45 [2020-12-01 15:53:16,002 INFO L226 Difference]: Without dead ends: 39 [2020-12-01 15:53:16,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=622, Invalid=1540, Unknown=0, NotChecked=0, Total=2162 [2020-12-01 15:53:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-01 15:53:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-01 15:53:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-01 15:53:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-12-01 15:53:16,016 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 22 [2020-12-01 15:53:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:53:16,017 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-12-01 15:53:16,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-01 15:53:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-12-01 15:53:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:53:16,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:53:16,019 INFO L422 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:16,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:53:16,238 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:53:16,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:16,238 INFO L82 PathProgramCache]: Analyzing trace with hash 99558796, now seen corresponding path program 4 times [2020-12-01 15:53:16,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:53:16,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356428489] [2020-12-01 15:53:16,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-01 15:53:16,400 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-01 15:53:16,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:16,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-01 15:53:16,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:18,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:54:24,306 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 16)) (ULTIMATE.start_main_~y~0 (_ BitVec 16))) (let ((.cse0 ((_ zero_extend 16) ULTIMATE.start_main_~x~0)) (.cse2 ((_ zero_extend 16) ULTIMATE.start_main_~y~0))) (= (let ((.cse31 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv15 32)))) (bvor (let ((.cse29 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv14 32)))) (bvor (let ((.cse27 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv13 32)))) (bvor (let ((.cse25 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv12 32)))) (bvor (let ((.cse23 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv11 32)))) (bvor (let ((.cse21 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv10 32)))) (bvor (let ((.cse19 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv9 32)))) (bvor (let ((.cse17 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv8 32)))) (bvor (let ((.cse15 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv7 32)))) (bvor (let ((.cse13 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv6 32)))) (bvor (let ((.cse11 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv5 32)))) (bvor (let ((.cse9 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv4 32)))) (bvor (let ((.cse7 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv3 32)))) (bvor (let ((.cse5 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv2 32)))) (bvor (let ((.cse3 (bvadd c_ULTIMATE.start_main_~i~0 (_ bv1 32)))) (bvor (bvor c_ULTIMATE.start_main_~z~0 (let ((.cse1 (bvshl (_ bv1 32) c_ULTIMATE.start_main_~i~0))) (bvor (bvshl (bvand .cse0 .cse1) c_ULTIMATE.start_main_~i~0) (bvshl (bvand .cse2 .cse1) .cse3)))) (let ((.cse4 (bvshl (_ bv1 32) .cse3))) (bvor (bvshl (bvand .cse0 .cse4) .cse3) (bvshl (bvand .cse2 .cse4) .cse5))))) (let ((.cse6 (bvshl (_ bv1 32) .cse5))) (bvor (bvshl (bvand .cse0 .cse6) .cse5) (bvshl (bvand .cse2 .cse6) .cse7))))) (let ((.cse8 (bvshl (_ bv1 32) .cse7))) (bvor (bvshl (bvand .cse0 .cse8) .cse7) (bvshl (bvand .cse2 .cse8) .cse9))))) (let ((.cse10 (bvshl (_ bv1 32) .cse9))) (bvor (bvshl (bvand .cse0 .cse10) .cse9) (bvshl (bvand .cse2 .cse10) .cse11))))) (let ((.cse12 (bvshl (_ bv1 32) .cse11))) (bvor (bvshl (bvand .cse0 .cse12) .cse11) (bvshl (bvand .cse2 .cse12) .cse13))))) (let ((.cse14 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse0 .cse14) .cse13) (bvshl (bvand .cse2 .cse14) .cse15))))) (let ((.cse16 (bvshl (_ bv1 32) .cse15))) (bvor (bvshl (bvand .cse0 .cse16) .cse15) (bvshl (bvand .cse2 .cse16) .cse17))))) (let ((.cse18 (bvshl (_ bv1 32) .cse17))) (bvor (bvshl (bvand .cse0 .cse18) .cse17) (bvshl (bvand .cse2 .cse18) .cse19))))) (let ((.cse20 (bvshl (_ bv1 32) .cse19))) (bvor (bvshl (bvand .cse0 .cse20) .cse19) (bvshl (bvand .cse2 .cse20) .cse21))))) (let ((.cse22 (bvshl (_ bv1 32) .cse21))) (bvor (bvshl (bvand .cse0 .cse22) .cse21) (bvshl (bvand .cse2 .cse22) .cse23))))) (let ((.cse24 (bvshl (_ bv1 32) .cse23))) (bvor (bvshl (bvand .cse0 .cse24) .cse23) (bvshl (bvand .cse2 .cse24) .cse25))))) (let ((.cse26 (bvshl (_ bv1 32) .cse25))) (bvor (bvshl (bvand .cse0 .cse26) .cse25) (bvshl (bvand .cse2 .cse26) .cse27))))) (let ((.cse28 (bvshl (_ bv1 32) .cse27))) (bvor (bvshl (bvand .cse0 .cse28) .cse27) (bvshl (bvand .cse2 .cse28) .cse29))))) (let ((.cse30 (bvshl (_ bv1 32) .cse29))) (bvor (bvshl (bvand .cse0 .cse30) .cse29) (bvshl (bvand .cse2 .cse30) .cse31))))) (let ((.cse32 (bvshl (_ bv1 32) .cse31))) (bvor (bvshl (bvand .cse0 .cse32) .cse31) (bvshl (bvand .cse2 .cse32) (bvadd c_ULTIMATE.start_main_~i~0 (_ bv16 32))))))) (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse0 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse2 (_ bv1 32)) (_ bv1 32)))) (bvor (bvshl (bvand .cse0 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse2 (_ bv2 32)) (_ bv2 32)))) (bvor (bvshl (bvand .cse0 (_ bv4 32)) (_ bv2 32)) (bvshl (bvand .cse2 (_ bv4 32)) (_ bv3 32)))) (bvor (bvshl (bvand .cse0 (_ bv8 32)) (_ bv3 32)) (bvshl (bvand .cse2 (_ bv8 32)) (_ bv4 32)))) (bvor (bvshl (bvand .cse0 (_ bv16 32)) (_ bv4 32)) (bvshl (bvand .cse2 (_ bv16 32)) (_ bv5 32)))) (bvor (bvshl (bvand .cse0 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse2 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse0 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse2 (_ bv64 32)) (_ bv7 32)))) (bvor (bvshl (bvand .cse0 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand .cse2 (_ bv128 32)) (_ bv8 32)))) (bvor (bvshl (bvand .cse0 (_ bv256 32)) (_ bv8 32)) (bvshl (bvand .cse2 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse0 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse2 (_ bv512 32)) (_ bv10 32)))) (bvor (bvshl (bvand .cse0 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse2 (_ bv1024 32)) (_ bv11 32)))) (bvor (bvshl (bvand .cse0 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse2 (_ bv2048 32)) (_ bv12 32)))) (bvor (bvshl (bvand .cse0 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse2 (_ bv4096 32)) (_ bv13 32)))) (bvor (bvshl (bvand .cse0 (_ bv8192 32)) (_ bv13 32)) (bvshl (bvand .cse2 (_ bv8192 32)) (_ bv14 32)))) (bvor (bvshl (bvand .cse0 (_ bv16384 32)) (_ bv14 32)) (bvshl (bvand .cse2 (_ bv16384 32)) (_ bv15 32)))) (bvor (bvshl (bvand .cse0 (_ bv32768 32)) (_ bv15 32)) (bvshl (bvand .cse2 (_ bv32768 32)) (_ bv16 32))))))) is different from false [2020-12-01 15:54:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2020-12-01 15:54:24,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356428489] [2020-12-01 15:54:24,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:54:24,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2020-12-01 15:54:24,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116764775] [2020-12-01 15:54:24,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-01 15:54:24,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:54:24,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-01 15:54:24,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=951, Unknown=1, NotChecked=68, Total=1332 [2020-12-01 15:54:24,449 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 37 states. [2020-12-01 15:54:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:28,569 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-12-01 15:54:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-01 15:54:28,569 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 24 [2020-12-01 15:54:28,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:28,570 INFO L225 Difference]: With dead ends: 39 [2020-12-01 15:54:28,570 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:54:28,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 67.8s TimeCoverageRelationStatistics Valid=332, Invalid=1003, Unknown=1, NotChecked=70, Total=1406 [2020-12-01 15:54:28,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:54:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:54:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:54:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:54:28,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-12-01 15:54:28,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:28,573 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:54:28,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-01 15:54:28,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:54:28,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:54:28,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 15:54:28,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:54:29,000 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 270 [2020-12-01 15:54:30,807 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 270 DAG size of output: 208 [2020-12-01 15:54:30,819 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:54:30,820 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-12-01 15:54:30,820 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:54:30,820 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:54:30,820 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:54:30,821 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:54:30,821 INFO L262 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-12-01 15:54:30,824 INFO L265 CegarLoopResult]: At program point L16-2(lines 1 59) the Hoare annotation is: true [2020-12-01 15:54:30,825 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:54:30,825 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-01 15:54:30,825 INFO L262 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-12-01 15:54:30,834 INFO L258 CegarLoopResult]: At program point L41-2(lines 41 44) the Hoare annotation is: (let ((.cse5 ((_ zero_extend 16) ULTIMATE.start_main_~x~0)) (.cse6 ((_ zero_extend 16) ULTIMATE.start_main_~y~0))) (let ((.cse11 (bvor (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse5 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse6 (_ bv1 32)) (_ bv1 32)))) (bvor (bvshl (bvand .cse5 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse6 (_ bv2 32)) (_ bv2 32)))) (bvor (bvshl (bvand .cse5 (_ bv4 32)) (_ bv2 32)) (bvshl (bvand .cse6 (_ bv4 32)) (_ bv3 32)))))) (let ((.cse10 (bvor .cse11 (bvor (bvshl (bvand .cse5 (_ bv8 32)) (_ bv3 32)) (bvshl (bvand .cse6 (_ bv8 32)) (_ bv4 32)))))) (let ((.cse3 (bvor .cse10 (bvor (bvshl (bvand .cse5 (_ bv16 32)) (_ bv4 32)) (bvshl (bvand .cse6 (_ bv16 32)) (_ bv5 32)))))) (let ((.cse1 (bvor (bvor .cse3 (bvor (bvshl (bvand .cse5 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse6 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse5 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse6 (_ bv64 32)) (_ bv7 32)))))) (let ((.cse0 (bvor .cse1 (bvor (bvshl (bvand .cse5 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand .cse6 (_ bv128 32)) (_ bv8 32)))))) (let ((.cse9 (bvor .cse0 (bvor (bvshl (bvand .cse5 (_ bv256 32)) (_ bv8 32)) (bvshl (bvand .cse6 (_ bv256 32)) (_ bv9 32)))))) (let ((.cse7 (bvor .cse9 (bvor (bvshl (bvand .cse5 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse6 (_ bv512 32)) (_ bv10 32)))))) (let ((.cse15 (bvadd ULTIMATE.start_main_~i~0 (_ bv4294967295 32))) (.cse13 (bvadd ULTIMATE.start_main_~i~0 (_ bv4294967294 32))) (.cse8 (bvor .cse7 (bvor (bvshl (bvand .cse5 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse6 (_ bv1024 32)) (_ bv11 32)))))) (let ((.cse2 (bvor (bvor (bvor .cse8 (bvor (bvshl (bvand .cse5 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse6 (_ bv2048 32)) (_ bv12 32)))) (bvor (bvshl (bvand .cse5 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse6 (_ bv4096 32)) (_ bv13 32)))) (bvor (bvshl (bvand .cse5 (_ bv8192 32)) (_ bv13 32)) (bvshl (bvand .cse6 (_ bv8192 32)) (_ bv14 32))))) (.cse12 (let ((.cse16 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse5 .cse16) .cse13) (bvshl (bvand .cse6 .cse16) .cse15)))) (.cse4 (let ((.cse14 (bvshl (_ bv1 32) .cse15))) (bvor (bvshl (bvand .cse5 .cse14) .cse15) (bvshl (bvand .cse6 .cse14) ULTIMATE.start_main_~i~0))))) (or (and (= .cse0 ULTIMATE.start_main_~z~0) (= (_ bv8 32) ULTIMATE.start_main_~i~0)) (and (= .cse1 ULTIMATE.start_main_~z~0) (= (_ bv7 32) ULTIMATE.start_main_~i~0)) (and (= ULTIMATE.start_main_~z~0 .cse2) (= (_ bv14 32) ULTIMATE.start_main_~i~0)) (and (= (_ bv5 32) ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~z~0 .cse3)) (and (= (bvadd ULTIMATE.start_main_~i~0 (_ bv4294967281 32)) (_ bv0 32)) (= (bvor .cse2 .cse4) ULTIMATE.start_main_~z~0)) (= (bvor (bvor .cse2 (bvor (bvshl (bvand .cse5 (_ bv16384 32)) (_ bv14 32)) (bvshl (bvand .cse6 (_ bv16384 32)) (_ bv15 32)))) (bvor (bvshl (bvand .cse5 (_ bv32768 32)) (_ bv15 32)) (bvshl (bvand .cse6 (_ bv32768 32)) (_ bv16 32)))) ULTIMATE.start_main_~z~0) (and (= ULTIMATE.start_main_~z~0 .cse7) (= (_ bv10 32) ULTIMATE.start_main_~i~0)) (and (= (_ bv12 32) ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~z~0 (bvor .cse8 .cse4))) (and (= (_ bv11 32) ULTIMATE.start_main_~i~0) (= .cse8 ULTIMATE.start_main_~z~0)) (and (= (_ bv9 32) ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~z~0 .cse9)) (and (= (_ bv4 32) ULTIMATE.start_main_~i~0) (= .cse10 ULTIMATE.start_main_~z~0)) (and (= (_ bv3 32) ULTIMATE.start_main_~i~0) (= .cse11 ULTIMATE.start_main_~z~0)) (and (= (bvor (bvor .cse8 .cse12) .cse4) ULTIMATE.start_main_~z~0) (= (bvadd ULTIMATE.start_main_~i~0 (_ bv4294967283 32)) (_ bv0 32))) (and (= (bvor .cse3 .cse4) ULTIMATE.start_main_~z~0) (= (_ bv6 32) ULTIMATE.start_main_~i~0)) (and (= ULTIMATE.start_main_~z~0 (bvor (bvor (_ bv0 32) .cse12) .cse4)) (= .cse13 (_ bv0 32))) (and (= (_ bv1 32) ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~z~0 (bvor (_ bv0 32) .cse4))) (and (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~z~0))))))))))))) [2020-12-01 15:54:30,834 INFO L262 CegarLoopResult]: For program point L41-3(lines 41 44) no Hoare annotation was computed. [2020-12-01 15:54:30,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:54:30 BoogieIcfgContainer [2020-12-01 15:54:30,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:54:30,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:54:30,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:54:30,936 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:54:30,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:08" (3/4) ... [2020-12-01 15:54:30,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:54:30,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:54:30,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:54:30,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:54:30,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:54:31,030 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2d0eabc0-bcd7-46a6-bd88-4869aa1bcb11/bin/uautomizer/witness.graphml [2020-12-01 15:54:31,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:54:31,032 INFO L168 Benchmark]: Toolchain (without parser) took 83276.60 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 33.0 MB in the beginning and 28.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:54:31,033 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:54:31,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.22 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 22.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:54:31,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.62 ms. Allocated memory is still 54.5 MB. Free memory was 22.5 MB in the beginning and 37.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:54:31,035 INFO L168 Benchmark]: Boogie Preprocessor took 56.75 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 36.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:54:31,036 INFO L168 Benchmark]: RCFGBuilder took 420.33 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 24.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:54:31,036 INFO L168 Benchmark]: TraceAbstraction took 82212.69 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 24.4 MB in the beginning and 34.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:54:31,037 INFO L168 Benchmark]: Witness Printer took 105.26 ms. Allocated memory is still 83.9 MB. Free memory was 34.8 MB in the beginning and 28.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:54:31,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.22 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 22.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.62 ms. Allocated memory is still 54.5 MB. Free memory was 22.5 MB in the beginning and 37.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.75 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 36.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 420.33 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 24.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 82212.69 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 24.4 MB in the beginning and 34.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. * Witness Printer took 105.26 ms. Allocated memory is still 83.9 MB. Free memory was 34.8 MB in the beginning and 28.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 41]: Loop Invariant Derived loop invariant: ((((((((((((((((~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))) == z && 8bv32 == i) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))) == z && 7bv32 == i)) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32))) && 14bv32 == i)) || (5bv32 == i && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))))) || (~bvadd64(i, 4294967281bv32) == 0bv32 && ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), ~bvadd64(i, 4294967295bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), i))) == z)) || ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16384bv32), 14bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16384bv32), 15bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32768bv32), 15bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32768bv32), 16bv32))) == z) || (z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))) && 10bv32 == i)) || (12bv32 == i && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), ~bvadd64(i, 4294967295bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), i))))) || (11bv32 == i && ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))) == z)) || (9bv32 == i && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))))) || (4bv32 == i && ~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))) == z)) || (3bv32 == i && ~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))) == z)) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 256bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967295bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), ~bvadd64(i, 4294967295bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), i))) == z && ~bvadd64(i, 4294967283bv32) == 0bv32)) || (~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), ~bvadd64(i, 4294967295bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), i))) == z && 6bv32 == i)) || (z == ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967295bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), ~bvadd64(i, 4294967295bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), i))) && ~bvadd64(i, 4294967294bv32) == 0bv32)) || (1bv32 == i && z == ~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), ~bvadd64(i, 4294967295bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967295bv32))), i))))) || (0bv32 == i && 0bv32 == z) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.9s, OverallIterations: 5, TraceHistogramMax: 16, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 88 SDslu, 184 SDs, 0 SdLazy, 594 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 72.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 33 NumberOfFragments, 2111 HoareAnnotationTreeSize, 2 FomulaSimplifications, 3445 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 245 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 70.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 146 ConstructedInterpolants, 1 QuantifiedInterpolants, 233430 SizeOfPredicates, 13 NumberOfNonLiveVariables, 269 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 120/530 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...