./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8f17cf5334c3a5b079beafc57a2e2bffaea721f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 04:35:02,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:35:02,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:35:02,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:35:02,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:35:02,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:35:02,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:35:02,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:35:02,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:35:02,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:35:02,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:35:02,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:35:02,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:35:02,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:35:02,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:35:02,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:35:02,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:35:02,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:35:02,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:35:02,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:35:02,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:35:02,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:35:02,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:35:02,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:35:02,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:35:02,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:35:02,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:35:02,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:35:02,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:35:02,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:35:02,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:35:02,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:35:02,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:35:02,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:35:02,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:35:02,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:35:02,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:35:02,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:35:02,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:35:02,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:35:02,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:35:02,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 04:35:02,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:35:02,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:35:02,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:35:02,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:35:02,776 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:35:02,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:35:02,776 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:35:02,776 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:35:02,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:35:02,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:35:02,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:35:02,777 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 04:35:02,777 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 04:35:02,777 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 04:35:02,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:35:02,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:35:02,778 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:35:02,778 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:35:02,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:35:02,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:35:02,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:35:02,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:35:02,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:35:02,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:35:02,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:35:02,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:35:02,780 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:35:02,780 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:35:02,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:35:02,780 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2019-11-20 04:35:02,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:35:02,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:35:02,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:35:02,935 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:35:02,935 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:35:02,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2019-11-20 04:35:02,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/data/10c3c40a6/98db99f1fe6948eca4a9c2125bc05b0f/FLAG85106baeb [2019-11-20 04:35:03,390 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:35:03,391 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2019-11-20 04:35:03,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/data/10c3c40a6/98db99f1fe6948eca4a9c2125bc05b0f/FLAG85106baeb [2019-11-20 04:35:03,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/data/10c3c40a6/98db99f1fe6948eca4a9c2125bc05b0f [2019-11-20 04:35:03,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:35:03,412 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 04:35:03,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:35:03,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:35:03,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:35:03,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525ee995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03, skipping insertion in model container [2019-11-20 04:35:03,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,425 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:35:03,437 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:35:03,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:35:03,658 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:35:03,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:35:03,693 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:35:03,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03 WrapperNode [2019-11-20 04:35:03,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:35:03,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:35:03,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:35:03,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:35:03,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... [2019-11-20 04:35:03,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:35:03,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:35:03,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:35:03,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:35:03,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/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 04:35:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 04:35:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:35:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2019-11-20 04:35:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 04:35:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2019-11-20 04:35:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:35:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 04:35:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 04:35:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:35:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:35:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:35:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:35:04,142 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:35:04,143 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 04:35:04,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:35:04 BoogieIcfgContainer [2019-11-20 04:35:04,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:35:04,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:35:04,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:35:04,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:35:04,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:35:03" (1/3) ... [2019-11-20 04:35:04,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508a4f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:35:04, skipping insertion in model container [2019-11-20 04:35:04,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:35:03" (2/3) ... [2019-11-20 04:35:04,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508a4f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:35:04, skipping insertion in model container [2019-11-20 04:35:04,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:35:04" (3/3) ... [2019-11-20 04:35:04,151 INFO L109 eAbstractionObserver]: Analyzing ICFG getNumbers3.c [2019-11-20 04:35:04,163 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:35:04,170 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-20 04:35:04,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-20 04:35:04,202 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:35:04,202 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 04:35:04,202 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:35:04,202 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:35:04,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:35:04,203 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:35:04,203 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:35:04,204 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:35:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-20 04:35:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:35:04,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:04,228 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:04,228 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2019-11-20 04:35:04,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:04,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1364725915] [2019-11-20 04:35:04,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:35:04,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:35:04,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:04,426 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:04,427 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-20 04:35:04,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:04,472 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 04:35:04,472 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:04,473 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:15 [2019-11-20 04:35:04,504 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 04:35:04,504 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:04,535 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 04:35:04,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1364725915] [2019-11-20 04:35:04,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:35:04,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-20 04:35:04,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957212909] [2019-11-20 04:35:04,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:35:04,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:04,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:35:04,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:35:04,559 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2019-11-20 04:35:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:04,612 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-11-20 04:35:04,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:35:04,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-20 04:35:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:04,623 INFO L225 Difference]: With dead ends: 23 [2019-11-20 04:35:04,623 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 04:35:04,627 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:35:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 04:35:04,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 04:35:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 04:35:04,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-20 04:35:04,663 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2019-11-20 04:35:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:04,664 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-20 04:35:04,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:35:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-20 04:35:04,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:35:04,666 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:04,666 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:04,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:04,869 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:04,869 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2019-11-20 04:35:04,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:04,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [949659052] [2019-11-20 04:35:04,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:35:04,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:35:04,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:04,967 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-20 04:35:04,967 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:04,975 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:04,975 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:04,975 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:35:05,004 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 04:35:05,005 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:05,175 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 04:35:05,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [949659052] [2019-11-20 04:35:05,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:35:05,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 04:35:05,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093413537] [2019-11-20 04:35:05,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:35:05,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:05,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:35:05,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:35:05,183 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2019-11-20 04:35:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:05,370 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-20 04:35:05,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:35:05,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-20 04:35:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:05,374 INFO L225 Difference]: With dead ends: 26 [2019-11-20 04:35:05,374 INFO L226 Difference]: Without dead ends: 26 [2019-11-20 04:35:05,375 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:35:05,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-20 04:35:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2019-11-20 04:35:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 04:35:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-20 04:35:05,379 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2019-11-20 04:35:05,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:05,380 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-20 04:35:05,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:35:05,380 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-20 04:35:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 04:35:05,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:05,381 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:05,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:05,585 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:05,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:05,585 INFO L82 PathProgramCache]: Analyzing trace with hash -261628211, now seen corresponding path program 1 times [2019-11-20 04:35:05,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:05,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [214334782] [2019-11-20 04:35:05,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:35:05,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:35:05,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:05,680 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-20 04:35:05,680 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:05,685 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:05,685 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:05,685 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:35:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:05,784 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:06,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [214334782] [2019-11-20 04:35:06,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:35:06,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2019-11-20 04:35:06,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250901166] [2019-11-20 04:35:06,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 04:35:06,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:06,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 04:35:06,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 04:35:06,390 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 11 states. [2019-11-20 04:35:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:06,905 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-20 04:35:06,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:35:06,905 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2019-11-20 04:35:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:06,906 INFO L225 Difference]: With dead ends: 44 [2019-11-20 04:35:06,907 INFO L226 Difference]: Without dead ends: 44 [2019-11-20 04:35:06,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2019-11-20 04:35:06,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-20 04:35:06,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2019-11-20 04:35:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 04:35:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-20 04:35:06,914 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 15 [2019-11-20 04:35:06,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:06,914 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-20 04:35:06,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 04:35:06,914 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-20 04:35:06,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 04:35:06,915 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:06,915 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:07,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:07,117 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:07,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:07,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899522, now seen corresponding path program 1 times [2019-11-20 04:35:07,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:07,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1471109895] [2019-11-20 04:35:07,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:35:07,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:35:07,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:07,241 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:07,361 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1471109895] [2019-11-20 04:35:07,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:35:07,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-20 04:35:07,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179609240] [2019-11-20 04:35:07,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:35:07,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:07,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:35:07,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:35:07,363 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 10 states. [2019-11-20 04:35:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:07,613 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-11-20 04:35:07,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:35:07,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-20 04:35:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:07,616 INFO L225 Difference]: With dead ends: 41 [2019-11-20 04:35:07,616 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 04:35:07,616 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-20 04:35:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 04:35:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-11-20 04:35:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 04:35:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-11-20 04:35:07,621 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 22 [2019-11-20 04:35:07,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:07,622 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-11-20 04:35:07,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:35:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-11-20 04:35:07,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 04:35:07,623 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:07,623 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:07,825 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:07,826 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:07,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:07,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1705799027, now seen corresponding path program 2 times [2019-11-20 04:35:07,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:07,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [261156178] [2019-11-20 04:35:07,827 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:07,970 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:35:07,970 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:35:07,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:35:07,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:07,985 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-20 04:35:07,986 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:07,992 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:07,992 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:07,992 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:35:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:08,145 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:09,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [261156178] [2019-11-20 04:35:09,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:35:09,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-20 04:35:09,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832266518] [2019-11-20 04:35:09,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 04:35:09,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:09,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 04:35:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-11-20 04:35:09,299 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 18 states. [2019-11-20 04:35:10,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:10,067 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2019-11-20 04:35:10,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 04:35:10,068 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2019-11-20 04:35:10,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:10,069 INFO L225 Difference]: With dead ends: 53 [2019-11-20 04:35:10,069 INFO L226 Difference]: Without dead ends: 53 [2019-11-20 04:35:10,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2019-11-20 04:35:10,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-20 04:35:10,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2019-11-20 04:35:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-20 04:35:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2019-11-20 04:35:10,075 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 27 [2019-11-20 04:35:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:10,076 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2019-11-20 04:35:10,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 04:35:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2019-11-20 04:35:10,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 04:35:10,077 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:10,077 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:10,280 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:10,280 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:10,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:10,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1130229539, now seen corresponding path program 2 times [2019-11-20 04:35:10,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:10,281 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1903181385] [2019-11-20 04:35:10,281 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:10,337 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 04:35:10,337 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:35:10,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:35:10,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:10,363 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:10,363 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-20 04:35:10,364 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:10,383 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 04:35:10,384 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:10,384 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:15 [2019-11-20 04:35:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-11-20 04:35:10,433 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-11-20 04:35:10,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1903181385] [2019-11-20 04:35:10,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:35:10,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 04:35:10,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550980025] [2019-11-20 04:35:10,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:35:10,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:10,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:35:10,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:35:10,500 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 10 states. [2019-11-20 04:35:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:10,600 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2019-11-20 04:35:10,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:35:10,601 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2019-11-20 04:35:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:10,602 INFO L225 Difference]: With dead ends: 46 [2019-11-20 04:35:10,602 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 04:35:10,602 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:35:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 04:35:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-20 04:35:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-20 04:35:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2019-11-20 04:35:10,606 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 37 [2019-11-20 04:35:10,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:10,607 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2019-11-20 04:35:10,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:35:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2019-11-20 04:35:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 04:35:10,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:10,608 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:10,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:10,810 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:10,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1130229538, now seen corresponding path program 1 times [2019-11-20 04:35:10,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:10,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1432252806] [2019-11-20 04:35:10,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:35:10,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:35:10,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:11,025 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:11,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1432252806] [2019-11-20 04:35:11,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:35:11,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2019-11-20 04:35:11,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801798224] [2019-11-20 04:35:11,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-20 04:35:11,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:11,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-20 04:35:11,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2019-11-20 04:35:11,424 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 20 states. [2019-11-20 04:35:11,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:11,747 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-11-20 04:35:11,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 04:35:11,748 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 37 [2019-11-20 04:35:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:11,749 INFO L225 Difference]: With dead ends: 46 [2019-11-20 04:35:11,749 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 04:35:11,750 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2019-11-20 04:35:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 04:35:11,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-20 04:35:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-20 04:35:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-11-20 04:35:11,754 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 37 [2019-11-20 04:35:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:11,755 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-11-20 04:35:11,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-20 04:35:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-11-20 04:35:11,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 04:35:11,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:11,756 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:11,956 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:11,956 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:11,957 INFO L82 PathProgramCache]: Analyzing trace with hash 999269965, now seen corresponding path program 3 times [2019-11-20 04:35:11,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:11,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [350393830] [2019-11-20 04:35:11,958 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:12,187 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-20 04:35:12,187 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:35:12,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-20 04:35:12,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:12,196 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-20 04:35:12,197 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:12,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:12,202 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:12,202 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:35:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:12,592 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:13,037 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2019-11-20 04:35:13,251 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2019-11-20 04:35:14,137 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-20 04:35:14,490 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2019-11-20 04:35:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:35:16,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [350393830] [2019-11-20 04:35:16,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:35:16,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 29 [2019-11-20 04:35:16,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049834936] [2019-11-20 04:35:16,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-11-20 04:35:16,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:16,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-11-20 04:35:16,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2019-11-20 04:35:16,362 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 29 states. [2019-11-20 04:35:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:16,991 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2019-11-20 04:35:16,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 04:35:16,992 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 39 [2019-11-20 04:35:16,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:16,993 INFO L225 Difference]: With dead ends: 44 [2019-11-20 04:35:16,993 INFO L226 Difference]: Without dead ends: 44 [2019-11-20 04:35:16,994 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2019-11-20 04:35:16,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-20 04:35:16,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-11-20 04:35:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-20 04:35:16,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2019-11-20 04:35:16,996 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 39 [2019-11-20 04:35:16,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:16,997 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2019-11-20 04:35:16,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-11-20 04:35:16,997 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2019-11-20 04:35:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 04:35:16,997 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:35:16,998 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:35:17,198 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:17,198 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-20 04:35:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:35:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash 8599230, now seen corresponding path program 2 times [2019-11-20 04:35:17,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:35:17,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [779592629] [2019-11-20 04:35:17,199 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:17,252 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 04:35:17,252 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:35:17,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 04:35:17,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:35:17,267 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-11-20 04:35:17,267 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:35:17,272 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:35:17,272 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:35:17,272 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 04:35:17,344 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:35:17,344 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:35:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 04:35:17,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779592629] [2019-11-20 04:35:17,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:35:17,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 04:35:17,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640328503] [2019-11-20 04:35:17,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:35:17,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:35:17,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:35:17,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:35:17,654 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 10 states. [2019-11-20 04:35:17,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:35:17,765 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2019-11-20 04:35:17,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:35:17,766 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2019-11-20 04:35:17,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:35:17,766 INFO L225 Difference]: With dead ends: 43 [2019-11-20 04:35:17,766 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:35:17,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:35:17,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:35:17,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:35:17,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:35:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:35:17,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2019-11-20 04:35:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:35:17,767 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:35:17,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:35:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:35:17,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:35:17,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:35:17,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:35:17 BoogieIcfgContainer [2019-11-20 04:35:17,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:35:17,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:35:17,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:35:17,973 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:35:17,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:35:04" (3/4) ... [2019-11-20 04:35:17,975 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:35:17,980 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-20 04:35:17,980 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-20 04:35:17,980 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2019-11-20 04:35:17,984 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 04:35:17,984 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 04:35:17,984 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:35:18,018 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a3cbadf-3aba-4aff-92a7-9072a3edd2f5/bin/uautomizer/witness.graphml [2019-11-20 04:35:18,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:35:18,020 INFO L168 Benchmark]: Toolchain (without parser) took 14608.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 950.1 MB in the beginning and 968.6 MB in the end (delta: -18.5 MB). Peak memory consumption was 152.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:35:18,020 INFO L168 Benchmark]: CDTParser took 0.29 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 04:35:18,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:35:18,021 INFO L168 Benchmark]: Boogie Preprocessor took 45.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:35:18,022 INFO L168 Benchmark]: RCFGBuilder took 404.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:35:18,022 INFO L168 Benchmark]: TraceAbstraction took 13827.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.4 MB). Free memory was 1.1 GB in the beginning and 970.6 MB in the end (delta: 141.7 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:35:18,023 INFO L168 Benchmark]: Witness Printer took 46.52 ms. Allocated memory is still 1.2 GB. Free memory was 970.6 MB in the beginning and 968.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:35:18,027 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 281.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 404.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13827.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.4 MB). Free memory was 1.1 GB in the beginning and 970.6 MB in the end (delta: 141.7 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. * Witness Printer took 46.52 ms. Allocated memory is still 1.2 GB. Free memory was 970.6 MB in the beginning and 968.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 5 error locations. Result: SAFE, OverallTime: 13.7s, OverallIterations: 9, TraceHistogramMax: 11, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 363 SDslu, 390 SDs, 0 SdLazy, 1252 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 481 GetRequests, 361 SyntacticMatches, 6 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 238 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 195874 SizeOfPredicates, 9 NumberOfNonLiveVariables, 573 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 484/1120 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...