./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test25-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test25-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d33db1882917813547794c8974f871f0a78640e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:26:52,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:26:52,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:26:52,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:26:52,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:26:52,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:26:52,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:26:52,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:26:52,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:26:52,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:26:52,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:26:52,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:26:52,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:26:52,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:26:52,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:26:52,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:26:52,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:26:52,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:26:52,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:26:52,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:26:52,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:26:52,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:26:52,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:26:52,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:26:52,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:26:52,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:26:52,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:26:52,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:26:52,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:26:52,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:26:52,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:26:52,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:26:52,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:26:52,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:26:52,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:26:52,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:26:52,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:26:52,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:26:52,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:26:52,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:26:52,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:26:52,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:26:52,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:26:52,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:26:52,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:26:52,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:26:52,724 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:26:52,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:26:52,724 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:26:52,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:26:52,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:26:52,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:26:52,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:26:52,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:26:52,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:26:52,727 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:26:52,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:26:52,727 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:26:52,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:26:52,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:26:52,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:26:52,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:26:52,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:26:52,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:26:52,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:26:52,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:26:52,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:26:52,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:26:52,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:26:52,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:26:52,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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(__VERIFIER_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 -> 5d33db1882917813547794c8974f871f0a78640e [2019-11-20 06:26:52,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:26:52,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:26:52,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:26:52,908 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:26:52,908 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:26:52,909 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test25-2.c [2019-11-20 06:26:52,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/data/2f4476764/73c1c75704cc404ebab3a1a3356151f6/FLAG90fa45c02 [2019-11-20 06:26:53,355 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:26:53,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/sv-benchmarks/c/ldv-regression/test25-2.c [2019-11-20 06:26:53,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/data/2f4476764/73c1c75704cc404ebab3a1a3356151f6/FLAG90fa45c02 [2019-11-20 06:26:53,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/data/2f4476764/73c1c75704cc404ebab3a1a3356151f6 [2019-11-20 06:26:53,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:26:53,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:26:53,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:26:53,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:26:53,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:26:53,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf41693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53, skipping insertion in model container [2019-11-20 06:26:53,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,395 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:26:53,415 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:26:53,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:26:53,634 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:26:53,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:26:53,680 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:26:53,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53 WrapperNode [2019-11-20 06:26:53,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:26:53,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:26:53,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:26:53,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:26:53,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:26:53,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:26:53,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:26:53,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:26:53,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... [2019-11-20 06:26:53,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:26:53,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:26:53,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:26:53,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:26:53,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:53,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 06:26:53,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 06:26:53,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:26:53,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:26:53,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 06:26:53,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 06:26:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:26:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:26:54,112 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:26:54,112 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 06:26:54,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:54 BoogieIcfgContainer [2019-11-20 06:26:54,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:26:54,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:26:54,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:26:54,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:26:54,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:26:53" (1/3) ... [2019-11-20 06:26:54,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2570bbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:26:54, skipping insertion in model container [2019-11-20 06:26:54,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:53" (2/3) ... [2019-11-20 06:26:54,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2570bbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:26:54, skipping insertion in model container [2019-11-20 06:26:54,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:54" (3/3) ... [2019-11-20 06:26:54,122 INFO L109 eAbstractionObserver]: Analyzing ICFG test25-2.c [2019-11-20 06:26:54,131 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:26:54,138 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:26:54,147 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:26:54,173 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:26:54,173 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:26:54,174 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:26:54,174 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:26:54,174 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:26:54,174 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:26:54,175 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:26:54,175 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:26:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-20 06:26:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 06:26:54,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:54,197 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:54,197 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:54,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:54,203 INFO L82 PathProgramCache]: Analyzing trace with hash -631347226, now seen corresponding path program 1 times [2019-11-20 06:26:54,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:54,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286842118] [2019-11-20 06:26:54,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:26:54,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286842118] [2019-11-20 06:26:54,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:26:54,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:26:54,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651223359] [2019-11-20 06:26:54,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 06:26:54,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:54,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 06:26:54,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:26:54,353 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-11-20 06:26:54,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:54,364 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2019-11-20 06:26:54,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 06:26:54,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 06:26:54,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:54,373 INFO L225 Difference]: With dead ends: 30 [2019-11-20 06:26:54,373 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 06:26:54,376 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:26:54,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 06:26:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 06:26:54,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 06:26:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-11-20 06:26:54,404 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2019-11-20 06:26:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:54,405 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-11-20 06:26:54,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 06:26:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-11-20 06:26:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 06:26:54,406 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:54,406 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:54,406 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:54,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1697064536, now seen corresponding path program 1 times [2019-11-20 06:26:54,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:54,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48434767] [2019-11-20 06:26:54,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:26:54,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48434767] [2019-11-20 06:26:54,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:26:54,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 06:26:54,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412558825] [2019-11-20 06:26:54,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:26:54,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:54,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:26:54,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:26:54,457 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2019-11-20 06:26:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:54,487 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-11-20 06:26:54,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:26:54,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-20 06:26:54,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:54,489 INFO L225 Difference]: With dead ends: 24 [2019-11-20 06:26:54,489 INFO L226 Difference]: Without dead ends: 15 [2019-11-20 06:26:54,490 INFO L630 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 [2019-11-20 06:26:54,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-20 06:26:54,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-11-20 06:26:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-20 06:26:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-11-20 06:26:54,493 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-11-20 06:26:54,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:54,494 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-11-20 06:26:54,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:26:54,494 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-11-20 06:26:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 06:26:54,494 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:54,494 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:54,494 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:54,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:54,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1434190826, now seen corresponding path program 1 times [2019-11-20 06:26:54,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:54,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305192928] [2019-11-20 06:26:54,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:26:54,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305192928] [2019-11-20 06:26:54,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734795782] [2019-11-20 06:26:54,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:54,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 06:26:54,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:26:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:26:54,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:26:54,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-11-20 06:26:54,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555535166] [2019-11-20 06:26:54,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:26:54,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:54,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:26:54,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:26:54,712 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-11-20 06:26:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:54,750 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-11-20 06:26:54,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 06:26:54,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-20 06:26:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:54,752 INFO L225 Difference]: With dead ends: 26 [2019-11-20 06:26:54,753 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 06:26:54,753 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:26:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 06:26:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 06:26:54,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 06:26:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-11-20 06:26:54,756 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2019-11-20 06:26:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:54,757 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-11-20 06:26:54,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:26:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-20 06:26:54,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 06:26:54,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:54,757 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:54,958 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:26:54,959 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:54,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:54,960 INFO L82 PathProgramCache]: Analyzing trace with hash 201480788, now seen corresponding path program 2 times [2019-11-20 06:26:54,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:54,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404083640] [2019-11-20 06:26:54,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:26:55,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404083640] [2019-11-20 06:26:55,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52486047] [2019-11-20 06:26:55,057 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:55,124 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 06:26:55,124 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:26:55,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 06:26:55,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:26:55,269 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 06:26:55,273 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:26:55,274 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2019-11-20 06:26:55,275 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:26:55,281 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:26:55,283 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:26:55,283 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:38, output treesize:5 [2019-11-20 06:26:55,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 06:26:55,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 06:26:55,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-11-20 06:26:55,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80361074] [2019-11-20 06:26:55,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:26:55,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:55,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:26:55,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:26:55,302 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2019-11-20 06:26:55,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:55,379 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-20 06:26:55,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:26:55,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-20 06:26:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:55,381 INFO L225 Difference]: With dead ends: 23 [2019-11-20 06:26:55,381 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 06:26:55,382 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-20 06:26:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 06:26:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 06:26:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 06:26:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-11-20 06:26:55,385 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2019-11-20 06:26:55,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:55,385 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-11-20 06:26:55,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:26:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-11-20 06:26:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 06:26:55,386 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:55,386 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:55,591 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:26:55,592 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:55,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:55,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1859304665, now seen corresponding path program 1 times [2019-11-20 06:26:55,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:55,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116859475] [2019-11-20 06:26:55,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 06:26:55,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116859475] [2019-11-20 06:26:55,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443408258] [2019-11-20 06:26:55,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:55,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 06:26:55,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:26:55,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 06:26:55,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:26:55,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-20 06:26:55,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422015094] [2019-11-20 06:26:55,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 06:26:55,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:55,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 06:26:55,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:26:55,719 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2019-11-20 06:26:55,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:55,757 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-20 06:26:55,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:26:55,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-20 06:26:55,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:55,758 INFO L225 Difference]: With dead ends: 32 [2019-11-20 06:26:55,758 INFO L226 Difference]: Without dead ends: 21 [2019-11-20 06:26:55,759 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:26:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-20 06:26:55,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-11-20 06:26:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 06:26:55,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-20 06:26:55,763 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2019-11-20 06:26:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:55,763 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-20 06:26:55,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 06:26:55,764 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-20 06:26:55,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 06:26:55,764 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:55,765 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:55,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:26:55,969 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:55,969 INFO L82 PathProgramCache]: Analyzing trace with hash 291228695, now seen corresponding path program 2 times [2019-11-20 06:26:55,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:55,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887871130] [2019-11-20 06:26:55,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 06:26:56,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887871130] [2019-11-20 06:26:56,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097456266] [2019-11-20 06:26:56,049 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:56,111 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 06:26:56,111 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:26:56,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 06:26:56,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:26:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 06:26:56,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:26:56,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-20 06:26:56,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642600939] [2019-11-20 06:26:56,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 06:26:56,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:56,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:26:56,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:26:56,133 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2019-11-20 06:26:56,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:56,173 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-20 06:26:56,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:26:56,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-20 06:26:56,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:56,176 INFO L225 Difference]: With dead ends: 34 [2019-11-20 06:26:56,176 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 06:26:56,176 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:26:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 06:26:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-20 06:26:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 06:26:56,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-20 06:26:56,182 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 19 [2019-11-20 06:26:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:56,183 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-20 06:26:56,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 06:26:56,183 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-20 06:26:56,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 06:26:56,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:56,184 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:56,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:26:56,388 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:56,388 INFO L82 PathProgramCache]: Analyzing trace with hash 903742421, now seen corresponding path program 3 times [2019-11-20 06:26:56,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:56,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134825516] [2019-11-20 06:26:56,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 06:26:56,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134825516] [2019-11-20 06:26:56,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802551039] [2019-11-20 06:26:56,492 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:56,558 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-20 06:26:56,558 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:26:56,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 06:26:56,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:26:56,664 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 06:26:56,666 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:26:56,667 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2019-11-20 06:26:56,668 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:26:56,673 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:26:56,679 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:26:56,679 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:38, output treesize:5 [2019-11-20 06:26:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 06:26:56,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:26:56,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2019-11-20 06:26:56,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234808063] [2019-11-20 06:26:56,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 06:26:56,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:26:56,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 06:26:56,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-11-20 06:26:56,700 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 11 states. [2019-11-20 06:26:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:26:58,898 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-20 06:26:58,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 06:26:58,898 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2019-11-20 06:26:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:26:58,899 INFO L225 Difference]: With dead ends: 38 [2019-11-20 06:26:58,899 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 06:26:58,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-11-20 06:26:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 06:26:58,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-11-20 06:26:58,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 06:26:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-20 06:26:58,905 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2019-11-20 06:26:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:26:58,905 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-20 06:26:58,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 06:26:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-20 06:26:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 06:26:58,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:26:58,906 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:26:59,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:26:59,110 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:26:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:26:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1251069224, now seen corresponding path program 4 times [2019-11-20 06:26:59,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:26:59,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436862622] [2019-11-20 06:26:59,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:26:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:26:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 06:26:59,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436862622] [2019-11-20 06:26:59,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717289798] [2019-11-20 06:26:59,247 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:26:59,318 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 06:26:59,318 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:26:59,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 06:26:59,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:27:01,451 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 06:27:01,454 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:27:01,455 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2019-11-20 06:27:01,455 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:27:01,461 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:27:01,462 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:27:01,463 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:38, output treesize:5 [2019-11-20 06:27:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-20 06:27:01,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:27:01,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2019-11-20 06:27:01,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655183944] [2019-11-20 06:27:01,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 06:27:01,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:27:01,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 06:27:01,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=115, Unknown=1, NotChecked=0, Total=156 [2019-11-20 06:27:01,490 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 13 states. [2019-11-20 06:27:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:27:05,736 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-20 06:27:05,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 06:27:05,737 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2019-11-20 06:27:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:27:05,738 INFO L225 Difference]: With dead ends: 44 [2019-11-20 06:27:05,738 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 06:27:05,738 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=57, Invalid=181, Unknown=2, NotChecked=0, Total=240 [2019-11-20 06:27:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 06:27:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-11-20 06:27:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 06:27:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-20 06:27:05,744 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 25 [2019-11-20 06:27:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:27:05,744 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-20 06:27:05,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 06:27:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-20 06:27:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 06:27:05,745 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:27:05,745 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:27:05,952 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:27:05,952 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:27:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:27:05,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1378869733, now seen corresponding path program 5 times [2019-11-20 06:27:05,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:27:05,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988239757] [2019-11-20 06:27:05,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:27:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:27:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 06:27:06,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988239757] [2019-11-20 06:27:06,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493734012] [2019-11-20 06:27:06,047 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:27:07,092 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-11-20 06:27:07,092 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:27:07,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 06:27:07,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:27:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 06:27:07,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:27:07,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-11-20 06:27:07,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303890614] [2019-11-20 06:27:07,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 06:27:07,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:27:07,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 06:27:07,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 06:27:07,108 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 10 states. [2019-11-20 06:27:07,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:27:07,145 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2019-11-20 06:27:07,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 06:27:07,147 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-11-20 06:27:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:27:07,147 INFO L225 Difference]: With dead ends: 48 [2019-11-20 06:27:07,148 INFO L226 Difference]: Without dead ends: 33 [2019-11-20 06:27:07,148 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-11-20 06:27:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-20 06:27:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-11-20 06:27:07,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 06:27:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2019-11-20 06:27:07,152 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 29 [2019-11-20 06:27:07,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:27:07,167 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2019-11-20 06:27:07,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 06:27:07,168 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-11-20 06:27:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 06:27:07,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:27:07,170 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:27:07,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:27:07,375 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:27:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:27:07,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1005994073, now seen corresponding path program 6 times [2019-11-20 06:27:07,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:27:07,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408628782] [2019-11-20 06:27:07,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:27:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:27:07,496 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 06:27:07,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408628782] [2019-11-20 06:27:07,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816930995] [2019-11-20 06:27:07,496 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/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 [2019-11-20 06:27:07,629 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-11-20 06:27:07,630 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:27:07,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-20 06:27:07,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:27:07,658 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-11-20 06:27:07,658 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:27:07,668 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:27:07,676 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 06:27:07,676 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 06:27:07,692 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:27:07,692 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:27:07,692 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:20 [2019-11-20 06:27:07,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:27:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-11-20 06:27:07,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:27:07,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-20 06:27:07,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699413788] [2019-11-20 06:27:07,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 06:27:07,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:27:07,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 06:27:07,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-20 06:27:07,875 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 18 states. [2019-11-20 06:27:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:27:08,347 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2019-11-20 06:27:08,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 06:27:08,347 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 31 [2019-11-20 06:27:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:27:08,348 INFO L225 Difference]: With dead ends: 48 [2019-11-20 06:27:08,348 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 06:27:08,349 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2019-11-20 06:27:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 06:27:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 06:27:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 06:27:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 06:27:08,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-11-20 06:27:08,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:27:08,349 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:27:08,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 06:27:08,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:27:08,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:27:08,550 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:27:08,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 06:27:08,639 INFO L444 ceAbstractionStarter]: For program point L27-2(lines 27 30) no Hoare annotation was computed. [2019-11-20 06:27:08,639 INFO L440 ceAbstractionStarter]: At program point L27-3(lines 27 30) the Hoare annotation is: (= 0 |ULTIMATE.start_main_~#cont~0.offset|) [2019-11-20 06:27:08,639 INFO L444 ceAbstractionStarter]: For program point L27-4(lines 21 50) no Hoare annotation was computed. [2019-11-20 06:27:08,639 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 42) no Hoare annotation was computed. [2019-11-20 06:27:08,639 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 44) no Hoare annotation was computed. [2019-11-20 06:27:08,639 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L447 ceAbstractionStarter]: At program point L49(lines 20 50) the Hoare annotation is: true [2019-11-20 06:27:08,640 INFO L440 ceAbstractionStarter]: At program point L41(lines 21 50) the Hoare annotation is: false [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point L37-1(lines 37 39) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L440 ceAbstractionStarter]: At program point L37-3(lines 37 39) the Hoare annotation is: (and (= ULTIMATE.start_main_~pa~0.offset (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|) 4)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|) ULTIMATE.start_main_~pa~0.base) (<= ULTIMATE.start_main_~i~0 (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset)) (= 0 |ULTIMATE.start_main_~#cont~0.offset|)) [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point L37-4(lines 37 39) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 06:27:08,640 INFO L440 ceAbstractionStarter]: At program point L17(lines 15 18) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|)) (.cse1 (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|) 4))) (let ((.cse0 (select (select |#memory_int| .cse2) .cse1))) (and (<= .cse0 ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~pa~0.offset .cse1) (= .cse2 ULTIMATE.start_main_~pa~0.base) (= 1 |ULTIMATE.start_check_#res|) (<= ULTIMATE.start_main_~i~0 .cse0) (= 0 |ULTIMATE.start_main_~#cont~0.offset|)))) [2019-11-20 06:27:08,640 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 43) no Hoare annotation was computed. [2019-11-20 06:27:08,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:27:08 BoogieIcfgContainer [2019-11-20 06:27:08,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:27:08,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:27:08,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:27:08,664 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:27:08,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:54" (3/4) ... [2019-11-20 06:27:08,667 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:27:08,675 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 06:27:08,675 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 06:27:08,675 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 06:27:08,698 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] <= i && pa == #memory_$Pointer$[cont][cont] + 4) && #memory_$Pointer$[cont][cont] == pa) && 1 == \result) && i <= unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && 0 == cont [2019-11-20 06:27:08,718 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_95cafb84-0d39-487f-9021-ef1905c43a78/bin/uautomizer/witness.graphml [2019-11-20 06:27:08,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:27:08,720 INFO L168 Benchmark]: Toolchain (without parser) took 15338.34 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 232.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-11-20 06:27:08,720 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:27:08,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -223.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:27:08,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:27:08,721 INFO L168 Benchmark]: Boogie Preprocessor took 23.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:27:08,722 INFO L168 Benchmark]: RCFGBuilder took 374.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-20 06:27:08,722 INFO L168 Benchmark]: TraceAbstraction took 14549.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.1 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. [2019-11-20 06:27:08,723 INFO L168 Benchmark]: Witness Printer took 55.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-11-20 06:27:08,725 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -223.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 374.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14549.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.1 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. * Witness Printer took 55.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant [2019-11-20 06:27:08,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] <= i && pa == #memory_$Pointer$[cont][cont] + 4) && #memory_$Pointer$[cont][cont] == pa) && 1 == \result) && i <= unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && 0 == cont - InvariantResult [Line: 37]: Loop Invariant [2019-11-20 06:27:08,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 06:27:08,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-11-20 06:27:08,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-11-20 06:27:08,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-11-20 06:27:08,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((pa == #memory_$Pointer$[cont][cont] + 4 && #memory_$Pointer$[cont][cont] == pa) && i <= unknown-#memory_int-unknown[pa][pa]) && 0 == cont - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 == cont - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 14.4s, OverallIterations: 10, TraceHistogramMax: 7, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 53 SDslu, 311 SDs, 0 SdLazy, 378 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=9, 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, 10 MinimizatonAttempts, 7 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 19 NumberOfFragments, 89 HoareAnnotationTreeSize, 5 FomulaSimplifications, 207 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 361 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 343 ConstructedInterpolants, 9 QuantifiedInterpolants, 26877 SizeOfPredicates, 57 NumberOfNonLiveVariables, 808 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 155/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...