./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e87dcdf200473e63a59de50dc19079e5b1105965 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:44,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:44,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:44,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:44,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:44,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:44,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:44,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:44,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:44,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:44,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:44,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:44,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:44,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:44,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:44,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:44,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:44,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:44,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:44,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:44,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:44,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:44,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:44,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:44,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:44,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:44,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:44,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:44,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:44,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:44,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:44,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:44,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:44,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:44,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:44,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:44,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:44,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:44,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:44,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:44,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:44,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:44,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:44,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:44,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:44,816 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:44,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:44,817 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:44,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:44,817 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:44,818 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:44,818 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:44,818 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:44,818 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:44,819 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:44,819 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:44,819 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:44,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:44,820 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:44,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:44,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:44,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:44,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:44,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:44,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:44,822 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:44,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:44,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:44,823 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:44,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:44,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:44,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:44,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:44,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:44,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:44,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:44,825 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:44,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:44,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:44,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:44,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:44,826 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e87dcdf200473e63a59de50dc19079e5b1105965 [2021-10-11 02:32:45,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:45,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:45,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:45,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:45,215 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:45,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i [2021-10-11 02:32:45,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/data/6685fa151/befcae80ad064d1c91e02e422ef96258/FLAG91b54cde1 [2021-10-11 02:32:45,903 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:45,903 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i [2021-10-11 02:32:45,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/data/6685fa151/befcae80ad064d1c91e02e422ef96258/FLAG91b54cde1 [2021-10-11 02:32:46,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/data/6685fa151/befcae80ad064d1c91e02e422ef96258 [2021-10-11 02:32:46,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:46,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:46,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:46,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:46,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:46,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:46,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b62c45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46, skipping insertion in model container [2021-10-11 02:32:46,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:46,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:46,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:46,495 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i[949,962] [2021-10-11 02:32:46,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:46,757 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:46,774 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/sv-benchmarks/c/pthread-wmm/safe028_tso.opt.i[949,962] [2021-10-11 02:32:46,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:46,923 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:46,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46 WrapperNode [2021-10-11 02:32:46,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:46,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:46,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:46,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:46,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:46,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:46,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:46,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:46,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:46,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:47,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... [2021-10-11 02:32:47,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:47,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:47,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:47,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:47,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:32:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:32:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:32:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:32:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:32:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:32:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 02:32:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 02:32:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:32:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:47,136 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:32:47,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:47,503 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:32:47,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:47 BoogieIcfgContainer [2021-10-11 02:32:47,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:47,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:47,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:47,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:47,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:46" (1/3) ... [2021-10-11 02:32:47,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eb28c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:47, skipping insertion in model container [2021-10-11 02:32:47,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:46" (2/3) ... [2021-10-11 02:32:47,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eb28c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:47, skipping insertion in model container [2021-10-11 02:32:47,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:47" (3/3) ... [2021-10-11 02:32:47,533 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2021-10-11 02:32:47,553 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:32:47,553 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:47,557 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:47,558 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:32:47,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,632 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,633 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,633 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,633 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,635 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,635 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,636 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,637 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,637 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,640 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,642 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,643 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:47,659 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:32:47,673 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-11 02:32:47,697 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:47,697 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:47,698 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:47,698 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:47,698 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:47,698 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:47,698 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:47,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:47,712 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:32:47,715 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2021-10-11 02:32:47,718 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2021-10-11 02:32:47,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-10-11 02:32:47,774 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-10-11 02:32:47,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:32:47,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-10-11 02:32:47,782 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2021-10-11 02:32:50,381 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-10-11 02:32:50,771 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-10-11 02:32:50,878 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-10-11 02:32:51,086 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-10-11 02:32:51,240 INFO L131 LiptonReduction]: Checked pairs total: 2149 [2021-10-11 02:32:51,240 INFO L133 LiptonReduction]: Total number of compositions: 63 [2021-10-11 02:32:51,247 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2021-10-11 02:32:51,272 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2021-10-11 02:32:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2021-10-11 02:32:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:51,281 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:51,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:51,282 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:51,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:51,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1647971710, now seen corresponding path program 1 times [2021-10-11 02:32:51,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:51,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711531598] [2021-10-11 02:32:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:51,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711531598] [2021-10-11 02:32:51,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:51,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:51,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644875122] [2021-10-11 02:32:51,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:51,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:51,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:51,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:51,500 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2021-10-11 02:32:51,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:51,530 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2021-10-11 02:32:51,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:51,531 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:32:51,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:51,546 INFO L225 Difference]: With dead ends: 274 [2021-10-11 02:32:51,546 INFO L226 Difference]: Without dead ends: 226 [2021-10-11 02:32:51,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:51,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-11 02:32:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2021-10-11 02:32:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-10-11 02:32:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2021-10-11 02:32:51,611 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2021-10-11 02:32:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:51,613 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2021-10-11 02:32:51,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2021-10-11 02:32:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:51,614 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:51,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:51,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:51,615 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:51,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:51,616 INFO L82 PathProgramCache]: Analyzing trace with hash -452492411, now seen corresponding path program 1 times [2021-10-11 02:32:51,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:51,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293606471] [2021-10-11 02:32:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:51,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293606471] [2021-10-11 02:32:51,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:51,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:51,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289738498] [2021-10-11 02:32:51,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:51,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:51,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:51,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:51,848 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2021-10-11 02:32:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:51,906 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2021-10-11 02:32:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:51,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:32:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:51,912 INFO L225 Difference]: With dead ends: 250 [2021-10-11 02:32:51,912 INFO L226 Difference]: Without dead ends: 202 [2021-10-11 02:32:51,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-11 02:32:51,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-10-11 02:32:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-10-11 02:32:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2021-10-11 02:32:51,951 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2021-10-11 02:32:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:51,951 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2021-10-11 02:32:51,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2021-10-11 02:32:51,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:32:51,953 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:51,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:51,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:51,954 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:51,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:51,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1142322672, now seen corresponding path program 1 times [2021-10-11 02:32:51,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:51,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387278341] [2021-10-11 02:32:51,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387278341] [2021-10-11 02:32:52,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:52,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411602862] [2021-10-11 02:32:52,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:52,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:52,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:52,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:52,055 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 5 states. [2021-10-11 02:32:52,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,122 INFO L93 Difference]: Finished difference Result 262 states and 697 transitions. [2021-10-11 02:32:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:52,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 02:32:52,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,127 INFO L225 Difference]: With dead ends: 262 [2021-10-11 02:32:52,127 INFO L226 Difference]: Without dead ends: 154 [2021-10-11 02:32:52,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:52,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-11 02:32:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-10-11 02:32:52,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2021-10-11 02:32:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 392 transitions. [2021-10-11 02:32:52,154 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 392 transitions. Word has length 10 [2021-10-11 02:32:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,154 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 392 transitions. [2021-10-11 02:32:52,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 392 transitions. [2021-10-11 02:32:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:32:52,155 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:32:52,156 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,156 INFO L82 PathProgramCache]: Analyzing trace with hash -2010812812, now seen corresponding path program 1 times [2021-10-11 02:32:52,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:52,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001864556] [2021-10-11 02:32:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001864556] [2021-10-11 02:32:52,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:52,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011163194] [2021-10-11 02:32:52,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:52,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:52,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:52,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:52,262 INFO L87 Difference]: Start difference. First operand 154 states and 392 transitions. Second operand 3 states. [2021-10-11 02:32:52,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,274 INFO L93 Difference]: Finished difference Result 130 states and 299 transitions. [2021-10-11 02:32:52,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:52,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2021-10-11 02:32:52,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,276 INFO L225 Difference]: With dead ends: 130 [2021-10-11 02:32:52,276 INFO L226 Difference]: Without dead ends: 130 [2021-10-11 02:32:52,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:52,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-11 02:32:52,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-11 02:32:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 02:32:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 299 transitions. [2021-10-11 02:32:52,282 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 299 transitions. Word has length 11 [2021-10-11 02:32:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,282 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 299 transitions. [2021-10-11 02:32:52,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 299 transitions. [2021-10-11 02:32:52,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:32:52,284 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:32:52,284 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -216590115, now seen corresponding path program 1 times [2021-10-11 02:32:52,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:52,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418160277] [2021-10-11 02:32:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418160277] [2021-10-11 02:32:52,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:52,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233226866] [2021-10-11 02:32:52,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:52,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:52,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:52,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:52,345 INFO L87 Difference]: Start difference. First operand 130 states and 299 transitions. Second operand 4 states. [2021-10-11 02:32:52,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,361 INFO L93 Difference]: Finished difference Result 92 states and 186 transitions. [2021-10-11 02:32:52,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:52,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 02:32:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,362 INFO L225 Difference]: With dead ends: 92 [2021-10-11 02:32:52,362 INFO L226 Difference]: Without dead ends: 92 [2021-10-11 02:32:52,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-11 02:32:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-11 02:32:52,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-10-11 02:32:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2021-10-11 02:32:52,367 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 12 [2021-10-11 02:32:52,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,368 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2021-10-11 02:32:52,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2021-10-11 02:32:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:32:52,369 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:32:52,370 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1316923756, now seen corresponding path program 1 times [2021-10-11 02:32:52,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:52,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537857898] [2021-10-11 02:32:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537857898] [2021-10-11 02:32:52,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:52,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482452372] [2021-10-11 02:32:52,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:52,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:52,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:52,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:52,435 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 5 states. [2021-10-11 02:32:52,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,458 INFO L93 Difference]: Finished difference Result 73 states and 148 transitions. [2021-10-11 02:32:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:52,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:32:52,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,460 INFO L225 Difference]: With dead ends: 73 [2021-10-11 02:32:52,460 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 02:32:52,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:52,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 02:32:52,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-11 02:32:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-10-11 02:32:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 148 transitions. [2021-10-11 02:32:52,464 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 148 transitions. Word has length 14 [2021-10-11 02:32:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,464 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 148 transitions. [2021-10-11 02:32:52,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:52,464 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 148 transitions. [2021-10-11 02:32:52,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:52,465 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:32:52,466 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,466 INFO L82 PathProgramCache]: Analyzing trace with hash 193291591, now seen corresponding path program 1 times [2021-10-11 02:32:52,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:52,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487252955] [2021-10-11 02:32:52,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487252955] [2021-10-11 02:32:52,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:52,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310259930] [2021-10-11 02:32:52,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:52,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:52,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:52,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:52,565 INFO L87 Difference]: Start difference. First operand 73 states and 148 transitions. Second operand 5 states. [2021-10-11 02:32:52,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,596 INFO L93 Difference]: Finished difference Result 87 states and 170 transitions. [2021-10-11 02:32:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:52,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-10-11 02:32:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,597 INFO L225 Difference]: With dead ends: 87 [2021-10-11 02:32:52,597 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:32:52,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:52,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:32:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:32:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:32:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2021-10-11 02:32:52,600 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 17 [2021-10-11 02:32:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,601 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2021-10-11 02:32:52,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2021-10-11 02:32:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:52,602 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:32:52,603 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1222037843, now seen corresponding path program 2 times [2021-10-11 02:32:52,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:52,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192717755] [2021-10-11 02:32:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192717755] [2021-10-11 02:32:52,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:52,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249900612] [2021-10-11 02:32:52,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:52,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:52,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:52,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:52,736 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand 5 states. [2021-10-11 02:32:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,763 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2021-10-11 02:32:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:52,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-10-11 02:32:52,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,763 INFO L225 Difference]: With dead ends: 33 [2021-10-11 02:32:52,763 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:32:52,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:52,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:32:52,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:32:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:32:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:32:52,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-11 02:32:52,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,765 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:32:52,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:32:52,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:32:52,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:32:52,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:52 BasicIcfg [2021-10-11 02:32:52,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:52,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:52,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:52,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:52,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:47" (3/4) ... [2021-10-11 02:32:52,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:52,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:32:52,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:32:52,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 02:32:52,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:32:52,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:32:52,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:52,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:52,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ba1ec12-4298-428e-a56c-d511653f7eae/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:52,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:52,829 INFO L168 Benchmark]: Toolchain (without parser) took 6635.36 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 70.3 MB in the beginning and 137.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,829 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory was 56.9 MB in the beginning and 56.8 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:52,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.81 ms. Allocated memory is still 100.7 MB. Free memory was 70.0 MB in the beginning and 56.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.20 ms. Allocated memory is still 100.7 MB. Free memory was 56.1 MB in the beginning and 54.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,831 INFO L168 Benchmark]: Boogie Preprocessor took 37.14 ms. Allocated memory is still 100.7 MB. Free memory was 54.4 MB in the beginning and 53.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:52,832 INFO L168 Benchmark]: RCFGBuilder took 485.15 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 52.8 MB in the beginning and 85.9 MB in the end (delta: -33.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,832 INFO L168 Benchmark]: TraceAbstraction took 5246.49 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 85.3 MB in the beginning and 140.1 MB in the end (delta: -54.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:52,833 INFO L168 Benchmark]: Witness Printer took 59.00 ms. Allocated memory is still 176.2 MB. Free memory was 140.1 MB in the beginning and 137.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory was 56.9 MB in the beginning and 56.8 MB in the end (delta: 41.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 723.81 ms. Allocated memory is still 100.7 MB. Free memory was 70.0 MB in the beginning and 56.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.20 ms. Allocated memory is still 100.7 MB. Free memory was 56.1 MB in the beginning and 54.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.14 ms. Allocated memory is still 100.7 MB. Free memory was 54.4 MB in the beginning and 53.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 485.15 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 52.8 MB in the beginning and 85.9 MB in the end (delta: -33.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5246.49 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 85.3 MB in the beginning and 140.1 MB in the end (delta: -54.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 59.00 ms. Allocated memory is still 176.2 MB. Free memory was 140.1 MB in the beginning and 137.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 49 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 82 PlacesBefore, 31 PlacesAfterwards, 74 TransitionsBefore, 22 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2149 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 148 SDtfs, 126 SDslu, 207 SDs, 0 SdLazy, 77 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...