./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/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 4c57c239736851c67037a19023adceb82e24847c .................................................................................................................................................................................................................................................................................................................... Execution finished normally 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_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/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 4c57c239736851c67037a19023adceb82e24847c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:20:38,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:20:38,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:20:38,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:20:38,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:20:38,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:20:38,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:20:38,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:20:38,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:20:38,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:20:38,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:20:38,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:20:38,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:20:38,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:20:38,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:20:38,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:20:38,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:20:38,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:20:38,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:20:38,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:20:38,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:20:38,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:20:38,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:20:38,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:20:38,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:20:38,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:20:38,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:20:38,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:20:38,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:20:38,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:20:38,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:20:38,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:20:38,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:20:38,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:20:38,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:20:38,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:20:38,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:20:38,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:20:38,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:20:38,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:20:38,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:20:38,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:20:38,676 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:20:38,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:20:38,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:20:38,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:20:38,678 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:20:38,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:20:38,678 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:20:38,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:20:38,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:20:38,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:20:38,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:20:38,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:20:38,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:20:38,680 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:20:38,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:20:38,680 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:20:38,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:20:38,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:20:38,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:20:38,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:20:38,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:20:38,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:38,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:20:38,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:20:38,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:20:38,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:20:38,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:20:38,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:20:38,688 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_71cbeba1-6f65-4b36-83d6-378759dc2b2a/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 -> 4c57c239736851c67037a19023adceb82e24847c [2019-11-16 00:20:38,734 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:20:38,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:20:38,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:20:38,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:20:38,754 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:20:38,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-16 00:20:38,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/e42161be9/de33548e86f1440a92942571da1ccee4/FLAG9840b7dd8 [2019-11-16 00:20:39,181 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:20:39,182 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-16 00:20:39,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/e42161be9/de33548e86f1440a92942571da1ccee4/FLAG9840b7dd8 [2019-11-16 00:20:39,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/e42161be9/de33548e86f1440a92942571da1ccee4 [2019-11-16 00:20:39,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:20:39,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:20:39,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:39,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:20:39,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:20:39,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:39,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562ca7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39, skipping insertion in model container [2019-11-16 00:20:39,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:39,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:20:39,598 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:20:39,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:39,885 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:20:39,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:39,965 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:20:39,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39 WrapperNode [2019-11-16 00:20:39,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:39,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:39,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:20:39,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:20:39,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:39,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:40,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:20:40,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:20:40,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:20:40,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... [2019-11-16 00:20:40,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:20:40,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:20:40,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:20:40,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:20:40,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/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 [2019-11-16 00:20:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:20:40,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:20:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:20:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:20:40,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:20:40,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:20:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:20:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-16 00:20:40,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:20:40,570 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:20:40,570 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-16 00:20:40,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:40 BoogieIcfgContainer [2019-11-16 00:20:40,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:20:40,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:20:40,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:20:40,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:20:40,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:39" (1/3) ... [2019-11-16 00:20:40,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b83ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:40, skipping insertion in model container [2019-11-16 00:20:40,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:39" (2/3) ... [2019-11-16 00:20:40,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b83ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:40, skipping insertion in model container [2019-11-16 00:20:40,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:40" (3/3) ... [2019-11-16 00:20:40,581 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-11-16 00:20:40,591 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:20:40,599 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:20:40,607 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:20:40,626 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:20:40,627 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:20:40,627 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:20:40,627 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:20:40,627 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:20:40,627 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:20:40,627 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:20:40,627 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:20:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-16 00:20:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:20:40,648 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:40,649 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:40,651 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:20:40,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:40,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-16 00:20:40,664 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:40,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312127645] [2019-11-16 00:20:40,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:40,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:40,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:40,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312127645] [2019-11-16 00:20:40,806 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:40,806 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:20:40,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339330393] [2019-11-16 00:20:40,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:20:40,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:40,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:20:40,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:20:40,824 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-16 00:20:40,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:40,843 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-16 00:20:40,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:20:40,844 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-16 00:20:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:40,856 INFO L225 Difference]: With dead ends: 76 [2019-11-16 00:20:40,856 INFO L226 Difference]: Without dead ends: 36 [2019-11-16 00:20:40,860 INFO L600 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 [2019-11-16 00:20:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-16 00:20:40,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-16 00:20:40,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-16 00:20:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-16 00:20:40,900 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-16 00:20:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:40,900 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-16 00:20:40,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:20:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-16 00:20:40,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:20:40,902 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:40,902 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:40,902 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:20:40,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:40,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-16 00:20:40,903 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:40,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012994250] [2019-11-16 00:20:40,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:40,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:40,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:20:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:20:41,133 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:20:41,134 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:20:41,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:20:41 BoogieIcfgContainer [2019-11-16 00:20:41,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:20:41,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:20:41,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:20:41,199 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:20:41,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:40" (3/4) ... [2019-11-16 00:20:41,203 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:20:41,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:20:41,206 INFO L168 Benchmark]: Toolchain (without parser) took 1639.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -110.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:41,207 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-16 00:20:41,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:41,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.20 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. [2019-11-16 00:20:41,209 INFO L168 Benchmark]: Boogie Preprocessor took 39.99 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:41,209 INFO L168 Benchmark]: RCFGBuilder took 514.05 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:41,210 INFO L168 Benchmark]: TraceAbstraction took 624.75 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:41,211 INFO L168 Benchmark]: Witness Printer took 5.58 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. [2019-11-16 00:20:41,214 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 398.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.20 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. * Boogie Preprocessor took 39.99 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 514.05 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 624.75 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.58 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 158. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = 0.0; [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L82] return x + x; VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L155] double res = atan_double(x); [L158] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L158] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L159] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-4:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:20:43,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:20:43,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:20:43,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-16 00:20:43,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:20:43,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:20:43,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:20:43,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:20:43,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:20:43,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:20:43,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:20:43,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:20:43,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:20:43,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:20:43,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:20:43,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:20:43,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-16 00:20:43,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:20:43,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:20:43,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:20:43,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:20:43,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:20:43,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:20:43,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:20:43,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:20:43,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:20:43,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:20:43,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:20:43,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:20:43,778 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:20:43,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:20:43,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:20:43,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:20:43,781 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:20:43,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:20:43,781 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:20:43,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:20:43,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:20:43,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:20:43,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:20:43,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:20:43,783 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:20:43,783 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:20:43,783 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:20:43,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:20:43,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:20:43,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:20:43,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:20:43,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:20:43,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:20:43,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:20:43,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:43,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:20:43,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:20:43,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:20:43,787 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:20:43,787 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:20:43,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:20:43,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:20:43,788 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_71cbeba1-6f65-4b36-83d6-378759dc2b2a/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 -> 4c57c239736851c67037a19023adceb82e24847c [2019-11-16 00:20:43,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:20:43,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:20:43,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:20:43,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:20:43,846 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:20:43,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-16 00:20:43,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/c702fdfa8/08629a077fa546b1b1a253dd28fa9b9c/FLAG2e0bf5fd2 [2019-11-16 00:20:44,424 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:20:44,427 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-16 00:20:44,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/c702fdfa8/08629a077fa546b1b1a253dd28fa9b9c/FLAG2e0bf5fd2 [2019-11-16 00:20:44,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/data/c702fdfa8/08629a077fa546b1b1a253dd28fa9b9c [2019-11-16 00:20:44,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:20:44,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:20:44,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:44,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:20:44,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:20:44,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5970a6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:44, skipping insertion in model container [2019-11-16 00:20:44,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:44" (1/1) ... [2019-11-16 00:20:44,747 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:20:44,783 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:20:45,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:45,017 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:20:45,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:45,208 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:20:45,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45 WrapperNode [2019-11-16 00:20:45,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:45,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:45,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:20:45,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:20:45,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:20:45,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:20:45,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:20:45,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:20:45,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... [2019-11-16 00:20:45,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:20:45,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:20:45,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:20:45,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:20:45,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/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 [2019-11-16 00:20:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-16 00:20:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-16 00:20:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:20:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-16 00:20:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:20:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:20:45,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:20:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:20:45,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:21:03,419 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:21:03,420 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-16 00:21:03,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:03 BoogieIcfgContainer [2019-11-16 00:21:03,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:21:03,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:21:03,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:21:03,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:21:03,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:44" (1/3) ... [2019-11-16 00:21:03,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eea6906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:03, skipping insertion in model container [2019-11-16 00:21:03,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:45" (2/3) ... [2019-11-16 00:21:03,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eea6906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:03, skipping insertion in model container [2019-11-16 00:21:03,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:03" (3/3) ... [2019-11-16 00:21:03,430 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-11-16 00:21:03,438 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:21:03,447 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:21:03,455 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:21:03,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:21:03,476 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:21:03,476 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:21:03,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:21:03,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:21:03,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:21:03,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:21:03,477 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:21:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-16 00:21:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:21:03,496 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:03,498 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:03,500 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:03,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-16 00:21:03,514 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:03,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126424676] [2019-11-16 00:21:03,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:03,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:21:03,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:03,852 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:03,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126424676] [2019-11-16 00:21:03,858 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:03,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:21:03,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641376571] [2019-11-16 00:21:03,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:21:03,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:03,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:21:03,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:21:03,878 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-16 00:21:03,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:03,902 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-16 00:21:03,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:21:03,903 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-16 00:21:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:03,915 INFO L225 Difference]: With dead ends: 76 [2019-11-16 00:21:03,915 INFO L226 Difference]: Without dead ends: 36 [2019-11-16 00:21:03,919 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:21:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-16 00:21:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-16 00:21:03,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-16 00:21:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-16 00:21:03,961 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-16 00:21:03,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:03,961 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-16 00:21:03,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:21:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-16 00:21:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:21:03,963 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:03,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:04,182 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:21:04,183 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:04,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-16 00:21:04,184 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:04,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846287161] [2019-11-16 00:21:04,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:04,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:21:04,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:04,575 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:04,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846287161] [2019-11-16 00:21:04,671 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:04,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-16 00:21:04,671 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736858605] [2019-11-16 00:21:04,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:21:04,673 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:04,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:21:04,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:21:04,674 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2019-11-16 00:21:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:13,588 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-11-16 00:21:13,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:21:13,593 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-16 00:21:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:13,594 INFO L225 Difference]: With dead ends: 59 [2019-11-16 00:21:13,594 INFO L226 Difference]: Without dead ends: 32 [2019-11-16 00:21:13,595 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:21:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-16 00:21:13,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-16 00:21:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-16 00:21:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-16 00:21:13,600 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-11-16 00:21:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:13,601 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-16 00:21:13,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:21:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-16 00:21:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:21:13,603 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:13,603 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:13,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:21:13,821 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:13,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:13,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2019-11-16 00:21:13,822 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:13,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417455101] [2019-11-16 00:21:13,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:14,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-16 00:21:14,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:14,199 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:14,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:21:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:14,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417455101] [2019-11-16 00:21:14,268 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:14,269 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-16 00:21:14,269 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231627422] [2019-11-16 00:21:14,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:21:14,270 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:14,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:21:14,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:21:14,270 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-16 00:21:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:23,368 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-16 00:21:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:21:23,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-16 00:21:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:23,370 INFO L225 Difference]: With dead ends: 35 [2019-11-16 00:21:23,370 INFO L226 Difference]: Without dead ends: 32 [2019-11-16 00:21:23,371 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:21:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-16 00:21:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-16 00:21:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-16 00:21:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-16 00:21:23,390 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-16 00:21:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:23,391 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-16 00:21:23,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:21:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-16 00:21:23,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-16 00:21:23,392 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:23,392 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:23,598 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:21:23,599 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:23,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:23,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2019-11-16 00:21:23,600 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:23,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708064831] [2019-11-16 00:21:23,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:28,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-16 00:21:28,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:28,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:28,546 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:29,276 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-16 00:21:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:29,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708064831] [2019-11-16 00:21:29,563 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:29,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-16 00:21:29,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995305012] [2019-11-16 00:21:29,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:21:29,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:29,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:21:29,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:21:29,565 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-16 00:21:29,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:29,803 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-16 00:21:29,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:21:29,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-16 00:21:29,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:29,817 INFO L225 Difference]: With dead ends: 32 [2019-11-16 00:21:29,817 INFO L226 Difference]: Without dead ends: 18 [2019-11-16 00:21:29,818 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:21:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-16 00:21:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-16 00:21:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-16 00:21:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-16 00:21:29,820 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-16 00:21:29,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:29,821 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-16 00:21:29,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:21:29,821 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-16 00:21:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:21:29,822 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:21:29,822 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:21:30,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-16 00:21:30,023 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:21:30,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:21:30,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2019-11-16 00:21:30,024 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:21:30,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283185066] [2019-11-16 00:21:30,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-16 00:21:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:21:30,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-16 00:21:30,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:21:30,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:21:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:30,401 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:21:30,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:21:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:21:30,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283185066] [2019-11-16 00:21:30,601 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:21:30,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-16 00:21:30,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057137148] [2019-11-16 00:21:30,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-16 00:21:30,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:21:30,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-16 00:21:30,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-16 00:21:30,603 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-16 00:21:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:21:30,955 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-16 00:21:30,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:21:30,956 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-16 00:21:30,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:21:30,956 INFO L225 Difference]: With dead ends: 18 [2019-11-16 00:21:30,957 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:21:30,957 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-16 00:21:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:21:30,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:21:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:21:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:21:30,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-16 00:21:30,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:21:30,960 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:21:30,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-16 00:21:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:21:30,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:21:31,161 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-16 00:21:31,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:21:31,363 INFO L443 ceAbstractionStarter]: For program point L68-3(lines 68 72) no Hoare annotation was computed. [2019-11-16 00:21:31,363 INFO L443 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2019-11-16 00:21:31,364 INFO L443 ceAbstractionStarter]: For program point L126(lines 126 131) no Hoare annotation was computed. [2019-11-16 00:21:31,364 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-16 00:21:31,364 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-16 00:21:31,364 INFO L439 ceAbstractionStarter]: At program point L143(lines 134 144) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((v_skolemized_v_prenex_22_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_22_3) ((_ extract 62 52) v_skolemized_v_prenex_22_3) ((_ extract 51 0) v_skolemized_v_prenex_22_3))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_22_3)))) (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-16 00:21:31,364 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:21:31,364 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:21:31,364 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2019-11-16 00:21:31,364 INFO L443 ceAbstractionStarter]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2019-11-16 00:21:31,365 INFO L439 ceAbstractionStarter]: At program point L137-2(lines 137 141) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-16 00:21:31,365 INFO L443 ceAbstractionStarter]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2019-11-16 00:21:31,365 INFO L443 ceAbstractionStarter]: For program point L96(lines 96 112) no Hoare annotation was computed. [2019-11-16 00:21:31,365 INFO L439 ceAbstractionStarter]: At program point L30(lines 17 31) the Hoare annotation is: false [2019-11-16 00:21:31,365 INFO L443 ceAbstractionStarter]: For program point L88(lines 88 113) no Hoare annotation was computed. [2019-11-16 00:21:31,365 INFO L443 ceAbstractionStarter]: For program point L105(lines 105 111) no Hoare annotation was computed. [2019-11-16 00:21:31,365 INFO L443 ceAbstractionStarter]: For program point L105-2(lines 88 113) no Hoare annotation was computed. [2019-11-16 00:21:31,365 INFO L446 ceAbstractionStarter]: At program point L163(lines 146 164) the Hoare annotation is: true [2019-11-16 00:21:31,365 INFO L443 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-16 00:21:31,366 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 103) no Hoare annotation was computed. [2019-11-16 00:21:31,366 INFO L443 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2019-11-16 00:21:31,366 INFO L439 ceAbstractionStarter]: At program point L130-3(lines 64 132) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-16 00:21:31,366 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 92) no Hoare annotation was computed. [2019-11-16 00:21:31,366 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 92) no Hoare annotation was computed. [2019-11-16 00:21:31,366 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:21:31,366 INFO L443 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L24-1(lines 17 31) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 29) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 87) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L83(lines 83 86) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L158(line 158) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L158-2(lines 158 161) no Hoare annotation was computed. [2019-11-16 00:21:31,367 INFO L443 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-16 00:21:31,368 INFO L439 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-16 00:21:31,368 INFO L443 ceAbstractionStarter]: For program point L76-3(lines 74 87) no Hoare annotation was computed. [2019-11-16 00:21:31,368 INFO L443 ceAbstractionStarter]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2019-11-16 00:21:31,368 INFO L439 ceAbstractionStarter]: At program point L68-2(lines 68 72) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-16 00:21:31,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,390 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,390 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,391 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:21:31 BoogieIcfgContainer [2019-11-16 00:21:31,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:21:31,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:21:31,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:21:31,397 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:21:31,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:03" (3/4) ... [2019-11-16 00:21:31,401 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:21:31,415 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-16 00:21:31,416 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-16 00:21:31,443 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~Pluszero~LONGDOUBLE() == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-16 00:21:31,444 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-16 00:21:31,445 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0bv32 && (\exists v_skolemized_v_prenex_22_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) && msw == v_skolemized_v_prenex_22_3[63:32])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-16 00:21:31,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_71cbeba1-6f65-4b36-83d6-378759dc2b2a/bin/uautomizer/witness.graphml [2019-11-16 00:21:31,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:21:31,488 INFO L168 Benchmark]: Toolchain (without parser) took 46759.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.0 MB in the beginning and 824.2 MB in the end (delta: 126.8 MB). Peak memory consumption was 230.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:31,488 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:21:31,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:31,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:31,489 INFO L168 Benchmark]: Boogie Preprocessor took 65.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:21:31,489 INFO L168 Benchmark]: RCFGBuilder took 18070.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:31,490 INFO L168 Benchmark]: TraceAbstraction took 27974.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 831.0 MB in the end (delta: 206.3 MB). Peak memory consumption was 206.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:31,496 INFO L168 Benchmark]: Witness Printer took 89.44 ms. Allocated memory is still 1.1 GB. Free memory was 831.0 MB in the beginning and 824.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:21:31,498 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 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 479.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 18070.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27974.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 831.0 MB in the end (delta: 206.3 MB). Peak memory consumption was 206.3 MB. Max. memory is 11.5 GB. * Witness Printer took 89.44 ms. Allocated memory is still 1.1 GB. Free memory was 831.0 MB in the beginning and 824.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: 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: 64]: Loop Invariant [2019-11-16 00:21:31,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~Pluszero~LONGDOUBLE() == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 134]: Loop Invariant [2019-11-16 00:21:31,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-16 00:21:31,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((\result == 0bv32 && (\exists v_skolemized_v_prenex_22_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) && msw == v_skolemized_v_prenex_22_3[63:32])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant [2019-11-16 00:21:31,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 68]: Loop Invariant [2019-11-16 00:21:31,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:21:31,525 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 27.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 113 SDtfs, 176 SDslu, 186 SDs, 0 SdLazy, 76 SolverSat, 13 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 101 HoareAnnotationTreeSize, 8 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 8841 SizeOfPredicates, 27 NumberOfNonLiveVariables, 557 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...