./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e0cca8b895610e8c0fad21a487b1096d22d3ff89 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e0cca8b895610e8c0fad21a487b1096d22d3ff89 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 09:06:27,806 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:06:27,807 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:06:27,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:06:27,814 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:06:27,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:06:27,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:06:27,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:06:27,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:06:27,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:06:27,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:06:27,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:06:27,820 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:06:27,821 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:06:27,821 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:06:27,822 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:06:27,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:06:27,824 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:06:27,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:06:27,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:06:27,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:06:27,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:06:27,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:06:27,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:06:27,830 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:06:27,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:06:27,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:06:27,831 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:06:27,832 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:06:27,833 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:06:27,833 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:06:27,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:06:27,833 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:06:27,834 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:06:27,834 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:06:27,835 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:06:27,835 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-23 09:06:27,845 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:06:27,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:06:27,846 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:06:27,846 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:06:27,846 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 09:06:27,846 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 09:06:27,846 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 09:06:27,846 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 09:06:27,847 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 09:06:27,847 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 09:06:27,847 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-23 09:06:27,847 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 09:06:27,847 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 09:06:27,847 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 09:06:27,848 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:06:27,848 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:06:27,848 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:06:27,848 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:06:27,848 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:06:27,848 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:06:27,849 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:06:27,849 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:06:27,849 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:06:27,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:06:27,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:06:27,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:06:27,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:06:27,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:06:27,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:06:27,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:06:27,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:06:27,850 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 09:06:27,850 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:06:27,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 09:06:27,851 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 09:06:27,851 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-23 09:06:27,851 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0cca8b895610e8c0fad21a487b1096d22d3ff89 [2018-11-23 09:06:27,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:06:27,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:06:27,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:06:27,884 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:06:27,884 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:06:27,884 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c [2018-11-23 09:06:27,921 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/401b81e60/7f90079984e14f2a87a03b450e46b5bf/FLAG79212d848 [2018-11-23 09:06:28,477 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:06:28,478 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c [2018-11-23 09:06:28,495 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/401b81e60/7f90079984e14f2a87a03b450e46b5bf/FLAG79212d848 [2018-11-23 09:06:28,901 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/401b81e60/7f90079984e14f2a87a03b450e46b5bf [2018-11-23 09:06:28,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:06:28,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:06:28,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:06:28,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:06:28,909 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:06:28,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:06:28" (1/1) ... [2018-11-23 09:06:28,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2a9b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:28, skipping insertion in model container [2018-11-23 09:06:28,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:06:28" (1/1) ... [2018-11-23 09:06:28,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:06:28,983 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:06:29,832 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:06:29,880 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:06:30,004 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:06:30,192 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:06:30,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30 WrapperNode [2018-11-23 09:06:30,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:06:30,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:06:30,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:06:30,193 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:06:30,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:06:30,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:06:30,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:06:30,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:06:30,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... [2018-11-23 09:06:30,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:06:30,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:06:30,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:06:30,497 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:06:30,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/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 [2018-11-23 09:06:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2018-11-23 09:06:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2018-11-23 09:06:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2018-11-23 09:06:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2018-11-23 09:06:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2018-11-23 09:06:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2018-11-23 09:06:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2018-11-23 09:06:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2018-11-23 09:06:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_detect [2018-11-23 09:06:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_detect [2018-11-23 09:06:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2018-11-23 09:06:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2018-11-23 09:06:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thaw_noirq_2 [2018-11-23 09:06:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2018-11-23 09:06:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2018-11-23 09:06:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_remove [2018-11-23 09:06:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_remove [2018-11-23 09:06:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_late_2 [2018-11-23 09:06:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2018-11-23 09:06:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 09:06:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2018-11-23 09:06:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_dmi_detect [2018-11-23 09:06:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_dmi_detect [2018-11-23 09:06:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-23 09:06:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-23 09:06:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-23 09:06:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 09:06:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-23 09:06:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-23 09:06:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2018-11-23 09:06:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2018-11-23 09:06:30,554 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2018-11-23 09:06:30,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2018-11-23 09:06:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2018-11-23 09:06:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2018-11-23 09:06:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2018-11-23 09:06:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2018-11-23 09:06:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_pm_ops_2 [2018-11-23 09:06:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_pm_ops_2 [2018-11-23 09:06:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_14 [2018-11-23 09:06:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_14 [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_poweroff_late_2 [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-23 09:06:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_freeze_late_2 [2018-11-23 09:06:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_probe [2018-11-23 09:06:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_probe [2018-11-23 09:06:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2018-11-23 09:06:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2018-11-23 09:06:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2018-11-23 09:06:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2018-11-23 09:06:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2018-11-23 09:06:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2018-11-23 09:06:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2018-11-23 09:06:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2018-11-23 09:06:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-23 09:06:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-23 09:06:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2018-11-23 09:06:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2018-11-23 09:06:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:06:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:06:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2018-11-23 09:06:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2018-11-23 09:06:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2018-11-23 09:06:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2018-11-23 09:06:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-23 09:06:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_restore_early_2 [2018-11-23 09:06:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_noirq_2 [2018-11-23 09:06:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_1 [2018-11-23 09:06:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_1 [2018-11-23 09:06:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:06:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:06:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_synchronize [2018-11-23 09:06:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_synchronize [2018-11-23 09:06:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 09:06:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_restore_noirq_2 [2018-11-23 09:06:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2018-11-23 09:06:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2018-11-23 09:06:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 09:06:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_init [2018-11-23 09:06:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_init [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_poweroff_noirq_2 [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2018-11-23 09:06:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2018-11-23 09:06:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2018-11-23 09:06:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_complete_2 [2018-11-23 09:06:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2018-11-23 09:06:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 09:06:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2018-11-23 09:06:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2018-11-23 09:06:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2018-11-23 09:06:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2018-11-23 09:06:30,566 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2018-11-23 09:06:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2018-11-23 09:06:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 09:06:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2018-11-23 09:06:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2018-11-23 09:06:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2018-11-23 09:06:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2018-11-23 09:06:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_freeze_noirq_2 [2018-11-23 09:06:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_noirq_2 [2018-11-23 09:06:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2018-11-23 09:06:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2018-11-23 09:06:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2018-11-23 09:06:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2018-11-23 09:06:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2018-11-23 09:06:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2018-11-23 09:06:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_exit [2018-11-23 09:06:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_exit [2018-11-23 09:06:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2018-11-23 09:06:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2018-11-23 09:06:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2018-11-23 09:06:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2018-11-23 09:06:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2018-11-23 09:06:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2018-11-23 09:06:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_16 [2018-11-23 09:06:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_16 [2018-11-23 09:06:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_15 [2018-11-23 09:06:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_15 [2018-11-23 09:06:30,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thaw_early_2 [2018-11-23 09:06:30,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 09:06:30,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-23 09:06:30,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-23 09:06:30,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_prepare_2 [2018-11-23 09:06:30,571 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2018-11-23 09:06:30,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:06:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:06:30,571 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2018-11-23 09:06:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2018-11-23 09:06:30,571 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2018-11-23 09:06:30,571 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2018-11-23 09:06:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2018-11-23 09:06:52,683 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:06:52,686 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 09:06:52,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:06:52 BoogieIcfgContainer [2018-11-23 09:06:52,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:06:52,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:06:52,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:06:52,689 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:06:52,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:06:28" (1/3) ... [2018-11-23 09:06:52,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c98b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:06:52, skipping insertion in model container [2018-11-23 09:06:52,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:06:30" (2/3) ... [2018-11-23 09:06:52,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c98b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:06:52, skipping insertion in model container [2018-11-23 09:06:52,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:06:52" (3/3) ... [2018-11-23 09:06:52,694 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c [2018-11-23 09:06:52,703 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:06:52,710 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:06:52,724 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:06:52,752 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:06:52,753 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:06:52,753 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:06:52,753 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:06:52,753 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:06:52,753 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:06:52,753 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:06:52,753 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:06:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states. [2018-11-23 09:06:52,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 09:06:52,783 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:06:52,784 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:06:52,786 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:06:52,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:06:52,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1662567086, now seen corresponding path program 1 times [2018-11-23 09:06:52,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:06:52,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:06:52,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:06:52,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:06:52,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:06:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:06:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:06:54,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:06:54,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:06:54,116 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:06:54,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:06:54,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:06:54,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:06:54,136 INFO L87 Difference]: Start difference. First operand 556 states. Second operand 3 states. [2018-11-23 09:06:57,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:06:57,929 INFO L93 Difference]: Finished difference Result 1553 states and 2251 transitions. [2018-11-23 09:06:57,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:06:57,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 09:06:57,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:06:57,949 INFO L225 Difference]: With dead ends: 1553 [2018-11-23 09:06:57,949 INFO L226 Difference]: Without dead ends: 986 [2018-11-23 09:06:57,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:06:57,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2018-11-23 09:06:58,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 982. [2018-11-23 09:06:58,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2018-11-23 09:06:58,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1396 transitions. [2018-11-23 09:06:58,051 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1396 transitions. Word has length 25 [2018-11-23 09:06:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:06:58,051 INFO L480 AbstractCegarLoop]: Abstraction has 982 states and 1396 transitions. [2018-11-23 09:06:58,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:06:58,051 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1396 transitions. [2018-11-23 09:06:58,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 09:06:58,053 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:06:58,053 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:06:58,054 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:06:58,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:06:58,054 INFO L82 PathProgramCache]: Analyzing trace with hash -285971678, now seen corresponding path program 1 times [2018-11-23 09:06:58,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:06:58,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:06:58,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:06:58,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:06:58,057 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:06:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:06:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:06:58,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:06:58,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:06:58,785 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:06:58,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:06:58,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:06:58,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:06:58,787 INFO L87 Difference]: Start difference. First operand 982 states and 1396 transitions. Second operand 3 states. [2018-11-23 09:07:00,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:00,441 INFO L93 Difference]: Finished difference Result 2726 states and 3834 transitions. [2018-11-23 09:07:00,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:00,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-11-23 09:07:00,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:00,451 INFO L225 Difference]: With dead ends: 2726 [2018-11-23 09:07:00,452 INFO L226 Difference]: Without dead ends: 1750 [2018-11-23 09:07:00,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:00,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2018-11-23 09:07:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1730. [2018-11-23 09:07:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1730 states. [2018-11-23 09:07:00,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2421 transitions. [2018-11-23 09:07:00,542 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2421 transitions. Word has length 27 [2018-11-23 09:07:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:00,542 INFO L480 AbstractCegarLoop]: Abstraction has 1730 states and 2421 transitions. [2018-11-23 09:07:00,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2421 transitions. [2018-11-23 09:07:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 09:07:00,544 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:00,544 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:00,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:00,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:00,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1052833482, now seen corresponding path program 1 times [2018-11-23 09:07:00,545 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:00,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:00,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:00,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:00,547 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:01,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:01,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 09:07:01,348 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:01,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 09:07:01,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 09:07:01,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 09:07:01,348 INFO L87 Difference]: Start difference. First operand 1730 states and 2421 transitions. Second operand 7 states. [2018-11-23 09:07:01,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:01,541 INFO L93 Difference]: Finished difference Result 3510 states and 4918 transitions. [2018-11-23 09:07:01,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 09:07:01,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-23 09:07:01,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:01,550 INFO L225 Difference]: With dead ends: 3510 [2018-11-23 09:07:01,550 INFO L226 Difference]: Without dead ends: 1786 [2018-11-23 09:07:01,633 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 09:07:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2018-11-23 09:07:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1748. [2018-11-23 09:07:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2018-11-23 09:07:01,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2445 transitions. [2018-11-23 09:07:01,690 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2445 transitions. Word has length 32 [2018-11-23 09:07:01,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:01,691 INFO L480 AbstractCegarLoop]: Abstraction has 1748 states and 2445 transitions. [2018-11-23 09:07:01,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 09:07:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2445 transitions. [2018-11-23 09:07:01,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 09:07:01,692 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:01,692 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:01,692 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:01,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:01,692 INFO L82 PathProgramCache]: Analyzing trace with hash -227030196, now seen corresponding path program 1 times [2018-11-23 09:07:01,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:01,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:01,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:01,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:01,694 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:02,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:02,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:02,292 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:02,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:02,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:02,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:02,293 INFO L87 Difference]: Start difference. First operand 1748 states and 2445 transitions. Second operand 3 states. [2018-11-23 09:07:02,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:02,328 INFO L93 Difference]: Finished difference Result 1750 states and 2446 transitions. [2018-11-23 09:07:02,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:02,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-23 09:07:02,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:02,336 INFO L225 Difference]: With dead ends: 1750 [2018-11-23 09:07:02,336 INFO L226 Difference]: Without dead ends: 1747 [2018-11-23 09:07:02,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2018-11-23 09:07:02,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1747. [2018-11-23 09:07:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1747 states. [2018-11-23 09:07:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2443 transitions. [2018-11-23 09:07:02,397 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2443 transitions. Word has length 32 [2018-11-23 09:07:02,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:02,397 INFO L480 AbstractCegarLoop]: Abstraction has 1747 states and 2443 transitions. [2018-11-23 09:07:02,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2443 transitions. [2018-11-23 09:07:02,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 09:07:02,398 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:02,399 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:02,399 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:02,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:02,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1551896883, now seen corresponding path program 1 times [2018-11-23 09:07:02,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:02,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:02,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:02,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:02,401 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:02,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:02,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:02,965 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:02,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:02,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:02,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:02,966 INFO L87 Difference]: Start difference. First operand 1747 states and 2443 transitions. Second operand 3 states. [2018-11-23 09:07:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:03,001 INFO L93 Difference]: Finished difference Result 1749 states and 2444 transitions. [2018-11-23 09:07:03,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:03,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-23 09:07:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:03,008 INFO L225 Difference]: With dead ends: 1749 [2018-11-23 09:07:03,008 INFO L226 Difference]: Without dead ends: 1746 [2018-11-23 09:07:03,009 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:03,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2018-11-23 09:07:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1746. [2018-11-23 09:07:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1746 states. [2018-11-23 09:07:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2441 transitions. [2018-11-23 09:07:03,067 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2441 transitions. Word has length 33 [2018-11-23 09:07:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:03,067 INFO L480 AbstractCegarLoop]: Abstraction has 1746 states and 2441 transitions. [2018-11-23 09:07:03,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2441 transitions. [2018-11-23 09:07:03,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 09:07:03,068 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:03,068 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:03,068 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:03,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:03,068 INFO L82 PathProgramCache]: Analyzing trace with hash 864066351, now seen corresponding path program 1 times [2018-11-23 09:07:03,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:03,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:03,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:03,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:03,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:03,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:03,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:03,624 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:03,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:03,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:03,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:03,625 INFO L87 Difference]: Start difference. First operand 1746 states and 2441 transitions. Second operand 3 states. [2018-11-23 09:07:03,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:03,726 INFO L93 Difference]: Finished difference Result 4816 states and 6787 transitions. [2018-11-23 09:07:03,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:03,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-11-23 09:07:03,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:03,739 INFO L225 Difference]: With dead ends: 4816 [2018-11-23 09:07:03,739 INFO L226 Difference]: Without dead ends: 3063 [2018-11-23 09:07:03,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2018-11-23 09:07:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3054. [2018-11-23 09:07:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2018-11-23 09:07:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 4311 transitions. [2018-11-23 09:07:03,856 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 4311 transitions. Word has length 34 [2018-11-23 09:07:03,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:03,856 INFO L480 AbstractCegarLoop]: Abstraction has 3054 states and 4311 transitions. [2018-11-23 09:07:03,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:03,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 4311 transitions. [2018-11-23 09:07:03,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-23 09:07:03,858 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:03,858 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:03,858 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:03,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:03,859 INFO L82 PathProgramCache]: Analyzing trace with hash -119315971, now seen corresponding path program 1 times [2018-11-23 09:07:03,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:03,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:03,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:03,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:03,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:04,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:04,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:04,385 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:04,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:04,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:04,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:04,385 INFO L87 Difference]: Start difference. First operand 3054 states and 4311 transitions. Second operand 3 states. [2018-11-23 09:07:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:08,275 INFO L93 Difference]: Finished difference Result 7620 states and 10797 transitions. [2018-11-23 09:07:08,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:08,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-23 09:07:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:08,288 INFO L225 Difference]: With dead ends: 7620 [2018-11-23 09:07:08,288 INFO L226 Difference]: Without dead ends: 4572 [2018-11-23 09:07:08,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:08,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2018-11-23 09:07:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4554. [2018-11-23 09:07:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4554 states. [2018-11-23 09:07:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 6391 transitions. [2018-11-23 09:07:08,445 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 6391 transitions. Word has length 64 [2018-11-23 09:07:08,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:08,446 INFO L480 AbstractCegarLoop]: Abstraction has 4554 states and 6391 transitions. [2018-11-23 09:07:08,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 6391 transitions. [2018-11-23 09:07:08,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-23 09:07:08,448 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:08,448 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:08,448 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:08,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:08,449 INFO L82 PathProgramCache]: Analyzing trace with hash 321696448, now seen corresponding path program 1 times [2018-11-23 09:07:08,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:08,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:08,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:08,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:08,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 09:07:09,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:09,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:09,026 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:09,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:09,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:09,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:09,027 INFO L87 Difference]: Start difference. First operand 4554 states and 6391 transitions. Second operand 3 states. [2018-11-23 09:07:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:12,882 INFO L93 Difference]: Finished difference Result 10620 states and 14957 transitions. [2018-11-23 09:07:12,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:12,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2018-11-23 09:07:12,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:12,908 INFO L225 Difference]: With dead ends: 10620 [2018-11-23 09:07:12,908 INFO L226 Difference]: Without dead ends: 6072 [2018-11-23 09:07:12,921 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:12,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2018-11-23 09:07:13,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 6054. [2018-11-23 09:07:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6054 states. [2018-11-23 09:07:13,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8471 transitions. [2018-11-23 09:07:13,118 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8471 transitions. Word has length 84 [2018-11-23 09:07:13,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:13,118 INFO L480 AbstractCegarLoop]: Abstraction has 6054 states and 8471 transitions. [2018-11-23 09:07:13,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:13,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8471 transitions. [2018-11-23 09:07:13,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-23 09:07:13,120 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:13,120 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:13,120 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:13,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:13,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1339014872, now seen corresponding path program 1 times [2018-11-23 09:07:13,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:13,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:13,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:13,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:13,122 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:13,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:13,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:13,607 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:13,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:13,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:13,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:13,608 INFO L87 Difference]: Start difference. First operand 6054 states and 8471 transitions. Second operand 3 states. [2018-11-23 09:07:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:15,231 INFO L93 Difference]: Finished difference Result 13745 states and 19310 transitions. [2018-11-23 09:07:15,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:15,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2018-11-23 09:07:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:15,261 INFO L225 Difference]: With dead ends: 13745 [2018-11-23 09:07:15,270 INFO L226 Difference]: Without dead ends: 7697 [2018-11-23 09:07:15,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:15,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7697 states. [2018-11-23 09:07:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7697 to 7654. [2018-11-23 09:07:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7654 states. [2018-11-23 09:07:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7654 states to 7654 states and 10777 transitions. [2018-11-23 09:07:15,512 INFO L78 Accepts]: Start accepts. Automaton has 7654 states and 10777 transitions. Word has length 96 [2018-11-23 09:07:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:15,512 INFO L480 AbstractCegarLoop]: Abstraction has 7654 states and 10777 transitions. [2018-11-23 09:07:15,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:15,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7654 states and 10777 transitions. [2018-11-23 09:07:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-23 09:07:15,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:15,516 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:15,516 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:15,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1453076133, now seen corresponding path program 1 times [2018-11-23 09:07:15,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:15,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:15,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:15,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:15,517 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 09:07:16,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:16,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:16,038 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:16,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:16,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:16,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:16,038 INFO L87 Difference]: Start difference. First operand 7654 states and 10777 transitions. Second operand 3 states. [2018-11-23 09:07:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:19,962 INFO L93 Difference]: Finished difference Result 17204 states and 24351 transitions. [2018-11-23 09:07:19,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:19,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-23 09:07:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:19,985 INFO L225 Difference]: With dead ends: 17204 [2018-11-23 09:07:19,985 INFO L226 Difference]: Without dead ends: 9556 [2018-11-23 09:07:19,996 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9556 states. [2018-11-23 09:07:20,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9556 to 9538. [2018-11-23 09:07:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9538 states. [2018-11-23 09:07:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9538 states to 9538 states and 13395 transitions. [2018-11-23 09:07:20,157 INFO L78 Accepts]: Start accepts. Automaton has 9538 states and 13395 transitions. Word has length 118 [2018-11-23 09:07:20,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:20,157 INFO L480 AbstractCegarLoop]: Abstraction has 9538 states and 13395 transitions. [2018-11-23 09:07:20,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 9538 states and 13395 transitions. [2018-11-23 09:07:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-23 09:07:20,160 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:20,160 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:20,160 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:20,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1157629448, now seen corresponding path program 1 times [2018-11-23 09:07:20,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:20,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:20,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:20,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:20,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 09:07:20,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:20,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:20,587 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:20,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:20,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:20,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:20,588 INFO L87 Difference]: Start difference. First operand 9538 states and 13395 transitions. Second operand 3 states. [2018-11-23 09:07:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:24,460 INFO L93 Difference]: Finished difference Result 20972 states and 29587 transitions. [2018-11-23 09:07:24,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:24,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-23 09:07:24,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:24,489 INFO L225 Difference]: With dead ends: 20972 [2018-11-23 09:07:24,489 INFO L226 Difference]: Without dead ends: 11440 [2018-11-23 09:07:24,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:24,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11440 states. [2018-11-23 09:07:24,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11440 to 11422. [2018-11-23 09:07:24,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11422 states. [2018-11-23 09:07:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11422 states to 11422 states and 16013 transitions. [2018-11-23 09:07:24,802 INFO L78 Accepts]: Start accepts. Automaton has 11422 states and 16013 transitions. Word has length 118 [2018-11-23 09:07:24,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:24,802 INFO L480 AbstractCegarLoop]: Abstraction has 11422 states and 16013 transitions. [2018-11-23 09:07:24,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:24,802 INFO L276 IsEmpty]: Start isEmpty. Operand 11422 states and 16013 transitions. [2018-11-23 09:07:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-23 09:07:24,806 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:24,806 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:24,806 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:24,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:24,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1674636931, now seen corresponding path program 1 times [2018-11-23 09:07:24,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:24,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:24,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:24,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:24,807 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 09:07:25,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:25,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:25,210 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:25,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:25,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:25,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:25,211 INFO L87 Difference]: Start difference. First operand 11422 states and 16013 transitions. Second operand 3 states. [2018-11-23 09:07:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:29,140 INFO L93 Difference]: Finished difference Result 24740 states and 34823 transitions. [2018-11-23 09:07:29,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:29,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2018-11-23 09:07:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:29,168 INFO L225 Difference]: With dead ends: 24740 [2018-11-23 09:07:29,168 INFO L226 Difference]: Without dead ends: 13324 [2018-11-23 09:07:29,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:29,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13324 states. [2018-11-23 09:07:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13324 to 13306. [2018-11-23 09:07:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13306 states. [2018-11-23 09:07:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13306 states to 13306 states and 18631 transitions. [2018-11-23 09:07:29,395 INFO L78 Accepts]: Start accepts. Automaton has 13306 states and 18631 transitions. Word has length 116 [2018-11-23 09:07:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:29,396 INFO L480 AbstractCegarLoop]: Abstraction has 13306 states and 18631 transitions. [2018-11-23 09:07:29,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:29,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13306 states and 18631 transitions. [2018-11-23 09:07:29,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-23 09:07:29,400 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:29,400 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:29,400 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:29,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:29,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1391048176, now seen corresponding path program 1 times [2018-11-23 09:07:29,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:29,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:29,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:29,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:29,402 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:29,826 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 09:07:29,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:29,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:07:29,827 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:29,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:07:29,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:07:29,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:07:29,827 INFO L87 Difference]: Start difference. First operand 13306 states and 18631 transitions. Second operand 5 states. [2018-11-23 09:07:33,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:33,676 INFO L93 Difference]: Finished difference Result 26725 states and 37388 transitions. [2018-11-23 09:07:33,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 09:07:33,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-11-23 09:07:33,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:33,721 INFO L225 Difference]: With dead ends: 26725 [2018-11-23 09:07:33,721 INFO L226 Difference]: Without dead ends: 13369 [2018-11-23 09:07:33,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:07:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13369 states. [2018-11-23 09:07:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13369 to 13336. [2018-11-23 09:07:34,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13336 states. [2018-11-23 09:07:34,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 18647 transitions. [2018-11-23 09:07:34,056 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 18647 transitions. Word has length 116 [2018-11-23 09:07:34,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:34,056 INFO L480 AbstractCegarLoop]: Abstraction has 13336 states and 18647 transitions. [2018-11-23 09:07:34,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:07:34,056 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 18647 transitions. [2018-11-23 09:07:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-23 09:07:34,059 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:34,059 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:34,059 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:34,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:34,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1459462934, now seen corresponding path program 1 times [2018-11-23 09:07:34,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:34,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:34,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:34,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:34,061 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:07:34,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:34,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:07:34,482 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:34,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:07:34,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:07:34,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:34,483 INFO L87 Difference]: Start difference. First operand 13336 states and 18647 transitions. Second operand 3 states. [2018-11-23 09:07:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:36,264 INFO L93 Difference]: Finished difference Result 21517 states and 29858 transitions. [2018-11-23 09:07:36,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:36,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2018-11-23 09:07:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:36,277 INFO L225 Difference]: With dead ends: 21517 [2018-11-23 09:07:36,277 INFO L226 Difference]: Without dead ends: 8187 [2018-11-23 09:07:36,289 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:07:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8187 states. [2018-11-23 09:07:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8187 to 5936. [2018-11-23 09:07:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5936 states. [2018-11-23 09:07:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 8363 transitions. [2018-11-23 09:07:36,426 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 8363 transitions. Word has length 142 [2018-11-23 09:07:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:36,427 INFO L480 AbstractCegarLoop]: Abstraction has 5936 states and 8363 transitions. [2018-11-23 09:07:36,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:07:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 8363 transitions. [2018-11-23 09:07:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-23 09:07:36,430 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:36,431 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:36,431 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:36,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:36,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1298445432, now seen corresponding path program 1 times [2018-11-23 09:07:36,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:36,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:36,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:36,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:36,432 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:36,876 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-23 09:07:36,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:36,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 09:07:36,876 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:36,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 09:07:36,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 09:07:36,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 09:07:36,877 INFO L87 Difference]: Start difference. First operand 5936 states and 8363 transitions. Second operand 7 states. [2018-11-23 09:07:37,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:37,021 INFO L93 Difference]: Finished difference Result 11939 states and 16822 transitions. [2018-11-23 09:07:37,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 09:07:37,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2018-11-23 09:07:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:37,029 INFO L225 Difference]: With dead ends: 11939 [2018-11-23 09:07:37,029 INFO L226 Difference]: Without dead ends: 6016 [2018-11-23 09:07:37,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 09:07:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2018-11-23 09:07:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 5944. [2018-11-23 09:07:37,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5944 states. [2018-11-23 09:07:37,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 8365 transitions. [2018-11-23 09:07:37,134 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 8365 transitions. Word has length 140 [2018-11-23 09:07:37,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:37,134 INFO L480 AbstractCegarLoop]: Abstraction has 5944 states and 8365 transitions. [2018-11-23 09:07:37,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 09:07:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 8365 transitions. [2018-11-23 09:07:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-11-23 09:07:37,136 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:37,136 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:37,137 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:37,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:37,137 INFO L82 PathProgramCache]: Analyzing trace with hash -855674116, now seen corresponding path program 1 times [2018-11-23 09:07:37,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:37,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:37,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:37,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:37,138 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-23 09:07:37,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:37,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:07:37,569 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:37,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 09:07:37,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:07:37,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:07:37,569 INFO L87 Difference]: Start difference. First operand 5944 states and 8365 transitions. Second operand 5 states. [2018-11-23 09:07:37,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:37,694 INFO L93 Difference]: Finished difference Result 11891 states and 16740 transitions. [2018-11-23 09:07:37,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 09:07:37,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2018-11-23 09:07:37,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:37,702 INFO L225 Difference]: With dead ends: 11891 [2018-11-23 09:07:37,702 INFO L226 Difference]: Without dead ends: 5968 [2018-11-23 09:07:37,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:07:37,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2018-11-23 09:07:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 5956. [2018-11-23 09:07:37,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5956 states. [2018-11-23 09:07:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 8377 transitions. [2018-11-23 09:07:37,802 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 8377 transitions. Word has length 163 [2018-11-23 09:07:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:37,802 INFO L480 AbstractCegarLoop]: Abstraction has 5956 states and 8377 transitions. [2018-11-23 09:07:37,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 09:07:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 8377 transitions. [2018-11-23 09:07:37,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-23 09:07:37,805 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:37,805 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:37,805 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:37,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:37,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1140760183, now seen corresponding path program 1 times [2018-11-23 09:07:37,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:37,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:37,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:37,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:37,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 09:07:38,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:07:38,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 09:07:38,332 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 09:07:38,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 09:07:38,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 09:07:38,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 09:07:38,333 INFO L87 Difference]: Start difference. First operand 5956 states and 8377 transitions. Second operand 4 states. [2018-11-23 09:07:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:07:42,562 INFO L93 Difference]: Finished difference Result 11875 states and 16722 transitions. [2018-11-23 09:07:42,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:07:42,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2018-11-23 09:07:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:07:42,575 INFO L225 Difference]: With dead ends: 11875 [2018-11-23 09:07:42,575 INFO L226 Difference]: Without dead ends: 5940 [2018-11-23 09:07:42,584 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 09:07:42,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2018-11-23 09:07:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5940. [2018-11-23 09:07:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5940 states. [2018-11-23 09:07:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 8341 transitions. [2018-11-23 09:07:42,735 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 8341 transitions. Word has length 166 [2018-11-23 09:07:42,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:07:42,735 INFO L480 AbstractCegarLoop]: Abstraction has 5940 states and 8341 transitions. [2018-11-23 09:07:42,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 09:07:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 8341 transitions. [2018-11-23 09:07:42,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-23 09:07:42,738 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:07:42,738 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:07:42,739 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:07:42,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:07:42,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1176619288, now seen corresponding path program 1 times [2018-11-23 09:07:42,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:07:42,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:42,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:07:42,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:07:42,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 09:07:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:07:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 09:07:43,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 09:07:43,223 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 09:07:43,224 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-23 09:07:43,226 INFO L202 CegarAbsIntRunner]: [22], [23], [46], [48], [49], [50], [52], [53], [54], [56], [128], [131], [134], [137], [140], [142], [146], [149], [152], [154], [159], [162], [185], [188], [191], [210], [229], [248], [251], [254], [256], [259], [267], [286], [305], [322], [339], [356], [373], [390], [407], [410], [413], [416], [761], [766], [768], [772], [776], [780], [784], [787], [795], [797], [799], [804], [807], [812], [815], [819], [822], [825], [829], [830], [904], [906], [910], [921], [924], [927], [949], [950], [1102], [1104], [1105], [1106], [1108], [1109], [1132], [1135], [1137], [1264], [1270], [1272], [1273], [1276], [1278], [1280], [1281], [1284], [1285], [1288], [1290], [1291], [1311], [1312], [1318], [1325], [1329], [1359], [1360], [1361], [1362], [1371], [1372], [1373], [1374], [1375], [1376], [1385], [1386], [1395], [1453], [1454], [1457], [1458], [1499], [1500], [1501], [1502], [1511], [1512], [1527], [1528], [1529], [1530], [1531], [1532], [1539], [1545], [1546], [1547] [2018-11-23 09:07:43,276 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 09:07:43,276 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 09:07:55,027 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-23 09:07:55,030 INFO L168 Benchmark]: Toolchain (without parser) took 86125.53 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.9 GB). Free memory was 951.2 MB in the beginning and 2.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.3 GB. Max. memory is 11.5 GB. [2018-11-23 09:07:55,031 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:07:55,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1287.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.2 MB in the beginning and 953.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 156.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:07:55,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.31 ms. Allocated memory is still 1.2 GB. Free memory was 953.2 MB in the beginning and 946.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-23 09:07:55,032 INFO L168 Benchmark]: Boogie Preprocessor took 221.70 ms. Allocated memory is still 1.2 GB. Free memory was 946.1 MB in the beginning and 903.2 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2018-11-23 09:07:55,032 INFO L168 Benchmark]: RCFGBuilder took 22189.66 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 2.0 GB). Free memory was 903.2 MB in the beginning and 1.7 GB in the end (delta: -771.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-11-23 09:07:55,033 INFO L168 Benchmark]: TraceAbstraction took 62342.45 ms. Allocated memory was 3.1 GB in the beginning and 3.9 GB in the end (delta: 820.5 MB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -935.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. [2018-11-23 09:07:55,035 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1287.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.2 MB in the beginning and 953.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 156.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.31 ms. Allocated memory is still 1.2 GB. Free memory was 953.2 MB in the beginning and 946.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 221.70 ms. Allocated memory is still 1.2 GB. Free memory was 946.1 MB in the beginning and 903.2 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 22189.66 ms. Allocated memory was 1.2 GB in the beginning and 3.1 GB in the end (delta: 2.0 GB). Free memory was 903.2 MB in the beginning and 1.7 GB in the end (delta: -771.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. * TraceAbstraction took 62342.45 ms. Allocated memory was 3.1 GB in the beginning and 3.9 GB in the end (delta: 820.5 MB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -935.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 09:07:56,609 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:07:56,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:07:56,619 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:07:56,619 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:07:56,620 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:07:56,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:07:56,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:07:56,623 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:07:56,623 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:07:56,624 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:07:56,624 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:07:56,625 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:07:56,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:07:56,627 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:07:56,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:07:56,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:07:56,629 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:07:56,631 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:07:56,632 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:07:56,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:07:56,633 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:07:56,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:07:56,635 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:07:56,635 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:07:56,636 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:07:56,636 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:07:56,637 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:07:56,637 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:07:56,638 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:07:56,638 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:07:56,639 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:07:56,639 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:07:56,639 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:07:56,640 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:07:56,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:07:56,641 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2018-11-23 09:07:56,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:07:56,651 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:07:56,652 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:07:56,652 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:07:56,652 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 09:07:56,652 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 09:07:56,652 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 09:07:56,652 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 09:07:56,653 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 09:07:56,653 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 09:07:56,653 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:07:56,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:07:56,653 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:07:56,655 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:07:56,656 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:07:56,656 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:07:56,656 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:07:56,656 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:07:56,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:07:56,656 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:07:56,656 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:07:56,657 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:07:56,657 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 09:07:56,657 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:07:56,657 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 09:07:56,657 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 09:07:56,657 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0cca8b895610e8c0fad21a487b1096d22d3ff89 [2018-11-23 09:07:56,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:07:56,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:07:56,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:07:56,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:07:56,702 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:07:56,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c [2018-11-23 09:07:56,741 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/7fb49137c/835386f9102444cab2745f77100df692/FLAGf62088ca9 [2018-11-23 09:07:57,208 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:07:57,208 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c [2018-11-23 09:07:57,225 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/7fb49137c/835386f9102444cab2745f77100df692/FLAGf62088ca9 [2018-11-23 09:07:57,235 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/data/7fb49137c/835386f9102444cab2745f77100df692 [2018-11-23 09:07:57,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:07:57,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:07:57,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:07:57,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:07:57,242 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:07:57,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:07:57" (1/1) ... [2018-11-23 09:07:57,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697e1de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:57, skipping insertion in model container [2018-11-23 09:07:57,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:07:57" (1/1) ... [2018-11-23 09:07:57,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:07:57,309 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:07:58,165 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:07:58,219 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:07:58,355 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:07:58,597 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:07:58,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58 WrapperNode [2018-11-23 09:07:58,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:07:58,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:07:58,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:07:58,598 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:07:58,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:07:58,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:07:58,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:07:58,681 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:07:58,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... [2018-11-23 09:07:58,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:07:58,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:07:58,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:07:58,880 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:07:58,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/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 [2018-11-23 09:07:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2018-11-23 09:07:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2018-11-23 09:07:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2018-11-23 09:07:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2018-11-23 09:07:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2018-11-23 09:07:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2018-11-23 09:07:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-23 09:07:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2018-11-23 09:07:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2018-11-23 09:07:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_detect [2018-11-23 09:07:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_detect [2018-11-23 09:07:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2018-11-23 09:07:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2018-11-23 09:07:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thaw_noirq_2 [2018-11-23 09:07:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2018-11-23 09:07:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2018-11-23 09:07:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_remove [2018-11-23 09:07:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_remove [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_late_2 [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2018-11-23 09:07:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_dmi_detect [2018-11-23 09:07:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_dmi_detect [2018-11-23 09:07:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2018-11-23 09:07:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2018-11-23 09:07:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-23 09:07:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-23 09:07:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-23 09:07:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2018-11-23 09:07:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2018-11-23 09:07:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2018-11-23 09:07:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2018-11-23 09:07:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2018-11-23 09:07:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2018-11-23 09:07:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2018-11-23 09:07:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2018-11-23 09:07:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_pm_ops_2 [2018-11-23 09:07:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_pm_ops_2 [2018-11-23 09:07:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_14 [2018-11-23 09:07:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_14 [2018-11-23 09:07:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2018-11-23 09:07:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_poweroff_late_2 [2018-11-23 09:07:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-23 09:07:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-23 09:07:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-23 09:07:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_freeze_late_2 [2018-11-23 09:07:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_probe [2018-11-23 09:07:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_probe [2018-11-23 09:07:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2018-11-23 09:07:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2018-11-23 09:07:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2018-11-23 09:07:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2018-11-23 09:07:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2018-11-23 09:07:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2018-11-23 09:07:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2018-11-23 09:07:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2018-11-23 09:07:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2018-11-23 09:07:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2018-11-23 09:07:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:07:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2018-11-23 09:07:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2018-11-23 09:07:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_restore_early_2 [2018-11-23 09:07:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_noirq_2 [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_1 [2018-11-23 09:07:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_1 [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:07:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_synchronize [2018-11-23 09:07:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_synchronize [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_restore_noirq_2 [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2018-11-23 09:07:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2018-11-23 09:07:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_init [2018-11-23 09:07:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_init [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_poweroff_noirq_2 [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2018-11-23 09:07:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2018-11-23 09:07:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2018-11-23 09:07:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_complete_2 [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2018-11-23 09:07:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2018-11-23 09:07:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2018-11-23 09:07:58,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2018-11-23 09:07:58,937 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2018-11-23 09:07:58,937 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2018-11-23 09:07:58,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_freeze_noirq_2 [2018-11-23 09:07:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_noirq_2 [2018-11-23 09:07:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2018-11-23 09:07:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2018-11-23 09:07:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2018-11-23 09:07:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 09:07:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2018-11-23 09:07:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2018-11-23 09:07:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2018-11-23 09:07:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_exit [2018-11-23 09:07:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_exit [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2018-11-23 09:07:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2018-11-23 09:07:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_16 [2018-11-23 09:07:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_16 [2018-11-23 09:07:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_15 [2018-11-23 09:07:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_15 [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thaw_early_2 [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-23 09:07:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_prepare_2 [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:07:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2018-11-23 09:07:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2018-11-23 09:07:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2018-11-23 09:07:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2018-11-23 09:07:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2018-11-23 09:08:50,763 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:08:50,764 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 09:08:50,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:50 BoogieIcfgContainer [2018-11-23 09:08:50,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:08:50,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:08:50,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:08:50,768 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:08:50,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:07:57" (1/3) ... [2018-11-23 09:08:50,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f42f70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:50, skipping insertion in model container [2018-11-23 09:08:50,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:07:58" (2/3) ... [2018-11-23 09:08:50,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f42f70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:50, skipping insertion in model container [2018-11-23 09:08:50,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:50" (3/3) ... [2018-11-23 09:08:50,771 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point_false-unreach-call.cil.out.c [2018-11-23 09:08:50,779 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:08:50,784 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:08:50,793 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:08:50,814 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 09:08:50,814 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:08:50,814 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:08:50,814 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:08:50,815 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:08:50,815 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:08:50,815 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:08:50,815 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:08:50,815 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:08:50,835 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states. [2018-11-23 09:08:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 09:08:50,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:08:50,841 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:08:50,843 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:08:50,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:08:50,848 INFO L82 PathProgramCache]: Analyzing trace with hash -3271522, now seen corresponding path program 1 times [2018-11-23 09:08:50,862 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 09:08:50,862 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 09:08:50,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:08:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:08:54,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:08:54,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:08:54,721 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 09:08:54,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:08:54,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:08:54,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:08:54,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:08:54,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:08:54,749 INFO L87 Difference]: Start difference. First operand 556 states. Second operand 3 states. [2018-11-23 09:08:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:08:54,831 INFO L93 Difference]: Finished difference Result 1103 states and 1584 transitions. [2018-11-23 09:08:54,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:08:54,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 09:08:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:08:54,847 INFO L225 Difference]: With dead ends: 1103 [2018-11-23 09:08:54,847 INFO L226 Difference]: Without dead ends: 541 [2018-11-23 09:08:54,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:08:54,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2018-11-23 09:08:54,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2018-11-23 09:08:54,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2018-11-23 09:08:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 763 transitions. [2018-11-23 09:08:54,916 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 763 transitions. Word has length 25 [2018-11-23 09:08:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:08:54,917 INFO L480 AbstractCegarLoop]: Abstraction has 541 states and 763 transitions. [2018-11-23 09:08:54,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:08:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 763 transitions. [2018-11-23 09:08:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 09:08:54,919 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:08:54,919 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:08:54,920 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:08:54,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:08:54,920 INFO L82 PathProgramCache]: Analyzing trace with hash -101491418, now seen corresponding path program 1 times [2018-11-23 09:08:54,924 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 09:08:54,925 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 09:08:55,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:08:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:08:58,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:08:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:08:58,537 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 09:08:58,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:08:58,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:08:58,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:08:58,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:08:58,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:08:58,560 INFO L87 Difference]: Start difference. First operand 541 states and 763 transitions. Second operand 3 states. [2018-11-23 09:08:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:08:58,589 INFO L93 Difference]: Finished difference Result 543 states and 764 transitions. [2018-11-23 09:08:58,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:08:58,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-23 09:08:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:08:58,593 INFO L225 Difference]: With dead ends: 543 [2018-11-23 09:08:58,593 INFO L226 Difference]: Without dead ends: 540 [2018-11-23 09:08:58,594 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:08:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2018-11-23 09:08:58,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2018-11-23 09:08:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2018-11-23 09:08:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 761 transitions. [2018-11-23 09:08:58,622 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 761 transitions. Word has length 26 [2018-11-23 09:08:58,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:08:58,622 INFO L480 AbstractCegarLoop]: Abstraction has 540 states and 761 transitions. [2018-11-23 09:08:58,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:08:58,622 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 761 transitions. [2018-11-23 09:08:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 09:08:58,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:08:58,624 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:08:58,624 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:08:58,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:08:58,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1432518086, now seen corresponding path program 1 times [2018-11-23 09:08:58,631 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 09:08:58,631 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b20a2452-94ee-474c-9ac5-958581ede040/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 09:08:58,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:09:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:09:02,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:09:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:09:02,142 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 09:09:02,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:09:02,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:09:02,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:09:02,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:09:02,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:09:02,152 INFO L87 Difference]: Start difference. First operand 540 states and 761 transitions. Second operand 3 states. [2018-11-23 09:09:11,873 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 09:09:11,874 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:334) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:258) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:270) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-11-23 09:09:11,877 INFO L168 Benchmark]: Toolchain (without parser) took 74638.57 ms. Allocated memory was 1.0 GB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 942.5 MB in the beginning and 1.7 GB in the end (delta: -797.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-23 09:09:11,878 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:09:11,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1358.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 942.5 MB in the beginning and 953.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 172.5 MB. Max. memory is 11.5 GB. [2018-11-23 09:09:11,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.52 ms. Allocated memory is still 1.2 GB. Free memory was 953.1 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-23 09:09:11,880 INFO L168 Benchmark]: Boogie Preprocessor took 198.23 ms. Allocated memory is still 1.2 GB. Free memory was 941.1 MB in the beginning and 892.8 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. [2018-11-23 09:09:11,880 INFO L168 Benchmark]: RCFGBuilder took 51884.87 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 892.8 MB in the beginning and 1.8 GB in the end (delta: -891.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. [2018-11-23 09:09:11,881 INFO L168 Benchmark]: TraceAbstraction took 21111.35 ms. Allocated memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 3.7 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 45.2 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. [2018-11-23 09:09:11,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1358.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 942.5 MB in the beginning and 953.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 172.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.52 ms. Allocated memory is still 1.2 GB. Free memory was 953.1 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 198.23 ms. Allocated memory is still 1.2 GB. Free memory was 941.1 MB in the beginning and 892.8 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 51884.87 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 892.8 MB in the beginning and 1.8 GB in the end (delta: -891.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. * TraceAbstraction took 21111.35 ms. Allocated memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 3.7 MB). Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 45.2 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...